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23.4.3 Channel preemption

Channel preemption is enabled on a per-channel basis by setting the DCHPRIn[ECP] bit.
Channel preemption allows the executing channel’s data transfers to temporarily suspend
in favor of starting a higher priority channel. After the preempting channel has completed
all its minor loop data transfers, the preempted channel is restored and resumes
execution. After the restored channel completes one read/write sequence, it is again
eligible for preemption. If any higher priority channel is requesting service, the restored
channel is suspended and the higher priority channel is serviced. Nested preemption, that
is, attempting to preempt a preempting channel, is not supported. After a preempting
channel begins execution, it cannot be preempted. Preemption is available only when
fixed arbitration is selected.

A channel’s ability to preempt another channel can be disabled by setting
DCHPRIn[DPA]. When a channel’s preempt ability is disabled, that channel cannot
suspend a lower priority channel’s data transfer, regardless of the lower priority channel’s
ECP setting. This allows for a pool of low priority, large data-moving channels to be
defined. These low priority channels can be configured to not preempt each other, thus
preventing a low priority channel from consuming the preempt slot normally available to
a true, high priority channel.

23.4.4 Performance

This section addresses the performance of the eDMA module, focusing on two separate
metrics:

• In the traditional data movement context, performance is best expressed as the peak

data transfer rates achieved using the eDMA. In most implementations, this transfer
rate is limited by the speed of the source and destination address spaces.

• In a second context where device-paced movement of single data values to/from

peripherals is dominant, a measure of the requests that can be serviced in a fixed time
is a more relevant metric. In this environment, the speed of the source and destination
address spaces remains important. However, the microarchitecture of the eDMA also
factors significantly into the resulting metric.

23.4.4.1 Peak transfer rates

The peak transfer rates for several different source and destination transfers are shown in
the following tables. These tables assume:

Chapter 23 Direct Memory Access Controller (eDMA)

KV4x Reference Manual, Rev. 2, 02/2015

Freescale Semiconductor, Inc.

Preliminary

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Содержание freescale KV4 Series

Страница 1: ...KV4x Reference Manual Supports MKV46 MKV45 MKV44 MKV43 MKV41 MKV40 part numbers Document Number KV4XP100M150RM Rev 2 02 2015 Preliminary...

Страница 2: ...KV4x Reference Manual Rev 2 02 2015 2 Preliminary Freescale Semiconductor Inc...

Страница 3: ...4 Core Modules 64 2 2 2 System Modules 65 2 2 3 Memories and Memory Interfaces 66 2 2 4 Clocks 66 2 2 5 Security and Integrity modules 66 2 2 6 Analog modules 67 2 2 7 Timer modules 67 2 2 8 Communica...

Страница 4: ...Chapter 4 Memories and Memory Interfaces 4 1 Flash memory types 83 4 2 Flash Memory Sizes 83 4 3 Flash Security 84 4 4 Flash Modes 84 4 5 Erase All Flash Contents 84 4 6 FTFA_FOPT Register 85 4 7 SRAM...

Страница 5: ...5 2 WDOG clocking 101 6 5 3 Debug trace clock 102 6 5 4 PMC 1 kHz LPO clock 102 6 5 5 PORT digital filter clocking 102 6 5 6 LPTMR clocking 103 6 5 7 FlexCAN clocking 103 6 5 8 UART clocking 104 6 6...

Страница 6: ...erences 119 9 2 The Debug Port 119 9 2 1 JTAG to SWD change sequence 119 9 3 Debug Port Pin Descriptions 120 9 4 JTAG status and control registers 120 9 4 1 MDM AP Control Register 121 9 4 2 MDM AP St...

Страница 7: ...reset LOCKUP 133 10 2 2 8 MDM AP system reset request 133 10 2 3 Debug resets 133 10 2 3 1 JTAG reset 133 10 2 3 2 nTRST reset 134 10 2 3 3 Resetting the Debug subsystem 134 10 3 Boot 135 10 3 1 Boot...

Страница 8: ...2 Global Pin Control Low Register PORTx_GPCLR 163 12 5 3 Global Pin Control High Register PORTx_GPCHR 163 12 5 4 Interrupt Status Flag Register PORTx_ISFR 164 12 5 5 Digital Filter Enable Register PO...

Страница 9: ...ting Control Register 7 SIM_SCGC7 194 13 2 13 System Clock Divider Register 1 SIM_CLKDIV1 194 13 2 14 Flash Configuration Register 1 SIM_FCFG1 197 13 2 15 Flash Configuration Register 2 SIM_FCFG2 198...

Страница 10: ...ypes 222 14 2 5 1 Ping packet 222 14 2 5 2 Ping Response Packet 223 14 2 5 3 Framing Packet 223 14 2 5 4 Command packet 225 14 2 5 5 Data packet 227 14 2 5 6 Response packet 227 14 2 6 Flashloader Com...

Страница 11: ...er descriptions 255 15 2 1 System Reset Status Register 0 RCM_SRS0 256 15 2 2 System Reset Status Register 1 RCM_SRS1 257 15 2 3 Reset Pin Filter Control register RCM_RPFC 259 15 2 4 Reset Pin Filter...

Страница 12: ...278 16 4 3 3 High Speed Run HSRUN mode 278 16 4 4 Wait modes 279 16 4 4 1 WAIT mode 279 16 4 4 2 Very Low Power Wait VLPW mode 280 16 4 5 Stop modes 280 16 4 5 1 STOP mode 281 16 4 5 2 Very Low Power...

Страница 13: ...system 295 18 3 1 LVD reset operation 296 18 3 2 LVD interrupt operation 296 18 3 3 Low voltage warning LVW interrupt operation 296 18 4 I O retention 297 18 5 Memory map and register descriptions 29...

Страница 14: ...register LLWU_PE8 315 19 4 9 LLWU Module Enable register LLWU_ME 316 19 4 10 LLWU Pin Flag 1 register LLWU_PF1 317 19 4 11 LLWU Pin Flag 2 register LLWU_PF2 319 19 4 12 LLWU Pin Flag 3 register LLWU_P...

Страница 15: ...bridges 337 21 2 Memory map 337 21 3 PACR registers 337 21 4 AIPS_Lite PACRE P register reset values 337 21 5 Introduction 338 21 5 1 Features 338 21 5 2 General operation 338 21 6 Memory map register...

Страница 16: ...22 5 3 Always enabled DMA sources 361 22 6 Initialization application information 363 22 6 1 Reset 363 22 6 2 Enabling and configuring sources 363 Chapter 23 Direct Memory Access Controller eDMA 23 1...

Страница 17: ...nnel n Priority Register DMA_DCHPRIn 410 23 3 18 TCD Source Address DMA_TCDn_SADDR 411 23 3 19 TCD Signed Source Address Offset DMA_TCDn_SOFF 411 23 3 20 TCD Transfer Attributes DMA_TCDn_ATTR 412 23 3...

Страница 18: ...ates 431 23 4 4 2 Peak request rates 432 23 4 4 3 eDMA performance example 434 23 5 Initialization application information 435 23 5 1 eDMA initialization 435 23 5 2 Programming errors 437 23 5 3 Arbit...

Страница 19: ...2 Modes of Operation 453 24 2 2 1 Stop Mode 453 24 2 2 2 Debug Mode 453 24 2 3 Block Diagram 453 24 3 EWM Signal Descriptions 454 24 4 Memory Map Register Definition 454 24 4 1 Control Register EWM_C...

Страница 20: ...esting the watchdog 468 25 5 1 Quick test 469 25 5 2 Byte test 469 25 6 Backup reset generator 471 25 7 Generated resets and interrupts 471 25 8 Memory map and register definition 472 25 8 1 Watchdog...

Страница 21: ...ssignment 483 26 1 2 XBARA signal output assignment 484 26 2 Introduction 486 26 2 1 Overview 486 26 2 2 Features 487 26 2 3 Modes of Operation 487 26 2 4 Block Diagram 487 26 3 Signal Descriptions 48...

Страница 22: ..._SEL16 499 26 4 18 Crossbar A Select Register 17 XBARA_SEL17 499 26 4 19 Crossbar A Select Register 18 XBARA_SEL18 500 26 4 20 Crossbar A Select Register 19 XBARA_SEL19 500 26 4 21 Crossbar A Select R...

Страница 23: ...RB_SEL0 515 27 3 2 Crossbar B Select Register 1 XBARB_SEL1 516 27 3 3 Crossbar B Select Register 2 XBARB_SEL2 516 27 3 4 Crossbar B Select Register 3 XBARB_SEL3 517 27 3 5 Crossbar B Select Register 4...

Страница 24: ...3 29 3 Block Diagram 534 29 4 OSC Signal Descriptions 534 29 5 External Crystal Resonator Connections 535 29 6 External Clock Connections 536 29 7 Memory Map Register Definitions 537 29 7 1 OSC Memory...

Страница 25: ..._C2 551 30 3 3 MCG Control 3 Register MCG_C3 552 30 3 4 MCG Control 4 Register MCG_C4 553 30 3 5 MCG Control 5 Register MCG_C5 554 30 3 6 MCG Control 6 Register MCG_C6 555 30 3 7 MCG Status Register M...

Страница 26: ...External Crystal 16 MHz MCGOUTCLK frequency 120 MHz 573 30 5 3 2 Example 2 Moving from PEE to BLPI mode MCGOUTCLK frequency 32 kHz 577 Chapter 31 Flash Memory Controller FMC 31 1 Introduction 581 31 1...

Страница 27: ...4 18 Cache Data Storage mid lower word FMC_DATAW2SnML 600 31 4 19 Cache Data Storage lowermost word FMC_DATAW2SnLM 600 31 4 20 Cache Data Storage uppermost word FMC_DATAW3SnUM 601 31 4 21 Cache Data...

Страница 28: ...TFA_FPROTn 620 32 3 3 7 Execute only Access Registers FTFA_XACCn 622 32 3 3 8 Supervisor only Access Registers FTFA_SACCn 623 32 3 3 9 Flash Access Segment Size Register FTFA_FACSS 624 32 3 3 10 Flash...

Страница 29: ...Backdoor Access Key Command 647 32 4 11 Security 648 32 4 11 1 Changing the Security State 649 32 4 12 Reset Sequence 650 Chapter 33 Cyclic redundancy check CRC 33 1 Introduction 651 33 1 1 Features...

Страница 30: ...C channel muxing 662 34 2 Introduction 662 34 2 1 Overview 662 34 2 2 Features 662 34 2 3 Block Diagram 664 34 3 Signal Descriptions 664 34 3 1 Overview 664 34 3 2 External Signal Descriptions 665 34...

Страница 31: ...High Limit Registers ADC_HILIMn 693 34 4 18 ADC Offset Registers ADC_OFFSTn 693 34 4 19 ADC Power Control Register ADC_PWR 694 34 4 20 ADC Calibration Register ADC_CAL 697 34 4 21 Gain Control 1 Regis...

Страница 32: ...al window sample input 725 35 2 Introduction 725 35 2 1 CMP features 725 35 2 2 6 bit DAC key features 726 35 2 3 ANMUX key features 727 35 2 4 CMP DAC and ANMUX diagram 727 35 2 5 CMP block diagram 7...

Страница 33: ...t mode operation 746 35 4 2 2 Stop mode operation 747 35 4 2 3 Background Debug Mode Operation 747 35 4 3 Startup and operation 747 35 4 4 Low pass filter 747 35 4 4 1 Enabling filter modes 748 35 4 4...

Страница 34: ...36 5 3 DAC Status Register DAC_SR 758 36 5 4 DAC Control Register DAC_C0 759 36 5 5 DAC Control Register 1 DAC_C1 760 36 5 6 DAC Control Register 2 DAC_C2 761 36 6 Functional description 761 36 6 1 DA...

Страница 35: ...k Signal 772 37 4 Memory Map and Registers 772 37 4 1 Counter Register PWMA_SMnCNT 780 37 4 2 Initial Count Register PWMA_SMnINIT 780 37 4 3 Control 2 Register PWMA_SMnCTRL2 781 37 4 4 Control Registe...

Страница 36: ...ister PWMA_SMnCAPTCOMPB 806 37 4 29 Capture Control X Register PWMA_SMnCAPTCTRLX 807 37 4 30 Capture Compare X Register PWMA_SMnCAPTCOMPX 809 37 4 31 Capture Value 0 Register PWMA_SMnCVAL0 809 37 4 32...

Страница 37: ...5 37 5 Functional Description 826 37 5 1 PWM Capabilities 826 37 5 1 1 Center Aligned PWMs 826 37 5 1 2 Edge Aligned PWMs 828 37 5 1 3 Phase Shifted PWMs 829 37 5 1 4 Double Switching PWMs 830 37 5 1...

Страница 38: ...pter 38 Programmable Delay Block PDB 38 1 Chip specific PDB information 863 38 1 1 PDB Instantiation 863 38 1 1 1 PDB0 Output Triggers 863 38 1 1 2 PDB0 Input Trigger Connections 863 38 1 1 3 PDB1 Out...

Страница 39: ...ay 0 register PDBx_CHnDLY0 878 38 4 8 Channel n Delay 1 register PDBx_CHnDLY1 878 38 4 9 Channel n Delay 2 register PDBx_CHnDLY2 879 38 4 10 Channel n Delay 3 register PDBx_CHnDLY3 879 38 4 11 DAC Int...

Страница 40: ...dule instances 891 39 1 8 FTM output triggers for other modules 891 39 1 9 FTM Global Time Base 892 39 1 10 FTM BDM and debug halt mode 893 39 2 Introduction 893 39 2 1 FlexTimer philosophy 893 39 2 2...

Страница 41: ...Capture Filter Control FTMx_FILTER 932 39 4 20 Fault Control FTMx_FLTCTRL 933 39 4 21 Quadrature Decoder Control And Status FTMx_QDCTRL 936 39 4 22 Configuration FTMx_CONF 938 39 4 23 FTM Fault Input...

Страница 42: ...CnV register update 972 39 5 11 PWM synchronization 973 39 5 11 1 Hardware trigger 973 39 5 11 2 Software trigger 974 39 5 11 3 Boundary cycle and loading points 975 39 5 11 4 MOD register synchroniz...

Страница 43: ...9 5 24 1 One Shot Capture mode 1007 39 5 24 2 Continuous Capture mode 1008 39 5 24 3 Pulse width measurement 1008 39 5 24 4 Period measurement 1010 39 5 24 5 Read coherency mechanism 1012 39 5 25 Quad...

Страница 44: ..._LDVALn 1031 40 4 3 Current Timer Value Register PIT_CVALn 1031 40 4 4 Timer Control Register PIT_TCTRLn 1032 40 4 5 Timer Flag Register PIT_TFLGn 1033 40 5 Functional description 1033 40 5 1 General...

Страница 45: ...SEB 1044 41 3 3 Index Input INDEX 1044 41 3 4 Home Switch Input HOME 1045 41 3 5 Trigger Input TRIGGER 1045 41 3 6 Position Match Output POSMATCH 1045 41 4 Memory Map and Registers 1046 41 4 1 Control...

Страница 46: ...0 Lower Position Compare Register ENC_LCOMP 1060 41 5 Functional Description 1060 41 5 1 Positive versus Negative Direction 1061 41 5 2 Prescaler for Slow or Fast Speed Measurement 1061 41 5 3 Holding...

Страница 47: ...ed 1071 42 5 3 2 Prescaler bypassed 1071 42 5 3 3 Glitch filter 1071 42 5 3 4 Glitch filter bypassed 1071 42 5 4 LPTMR compare 1072 42 5 5 LPTMR counter 1072 42 5 6 LPTMR hardware trigger 1073 42 5 7...

Страница 48: ...1 register CANx_IFLAG1 1108 43 4 12 Control 2 register CANx_CTRL2 1111 43 4 13 Error and Status 2 register CANx_ESR2 1115 43 4 14 CRC Register CANx_CRCR 1116 43 4 15 Rx FIFO Global Mask register CANx...

Страница 49: ...1 Remote frames 1149 43 5 8 2 Overload frames 1150 43 5 8 3 Time stamp 1151 43 5 8 4 Protocol timing 1151 43 5 8 5 Arbitration and matching timing 1155 43 5 8 6 Tx Arbitration start delay 1156 43 5 9...

Страница 50: ...PI Doze Mode 1171 44 1 10 SPI Interrupts 1171 44 2 Introduction 1171 44 2 1 Block Diagram 1171 44 2 2 Features 1172 44 2 3 Interface configurations 1174 44 2 3 1 SPI configuration 1174 44 2 4 Modes of...

Страница 51: ...4 4 8 PUSH TX FIFO Register In Slave Mode SPI_PUSHR_SLAVE 1197 44 4 9 POP RX FIFO Register SPI_POPR 1198 44 4 10 Transmit FIFO Registers SPI_TXFRn 1198 44 4 11 Receive FIFO Registers SPI_RXFRn 1199 44...

Страница 52: ...omplete Interrupt Request 1223 44 5 7 4 Transmit FIFO Underflow Interrupt Request 1223 44 5 7 5 Receive FIFO Drain Interrupt or DMA Request 1223 44 5 7 6 Receive FIFO Overflow Interrupt Request 1223 4...

Страница 53: ...I2C_C1 1236 45 4 4 I2C Status register I2C_S 1237 45 4 5 I2C Data I O register I2C_D 1239 45 4 6 I2C Control Register 2 I2C_C2 1240 45 4 7 I2C Programmable Input Glitch Filter Register I2C_FLT 1241 4...

Страница 54: ...FAST ACK and NACK 1256 45 5 5 Resets 1256 45 5 6 Interrupts 1256 45 5 6 1 Byte transfer interrupt 1257 45 5 6 2 Address detect interrupt 1257 45 5 6 3 Stop Detect Interrupt 1258 45 5 6 4 Exit from low...

Страница 55: ...trol Register 2 UARTx_C2 1275 46 4 5 UART Status Register 1 UARTx_S1 1277 46 4 6 UART Status Register 2 UARTx_S2 1280 46 4 7 UART Control Register 3 UARTx_C3 1281 46 4 8 UART Data Register UARTx_D 128...

Страница 56: ...8 46 5 1 6 Hardware flow control 1298 46 5 1 7 Transceiver driver enable 1299 46 5 2 Receiver 1300 46 5 2 1 Receiver character length 1301 46 5 2 2 Receiver bit ordering 1301 46 5 2 3 Character recept...

Страница 57: ...cations 1323 46 9 3 1 Overrun operation 1323 46 9 4 Match address registers 1324 46 9 5 Modem feature 1324 46 9 5 1 Ready to receive using RTS 1325 46 9 5 2 Transceiver driver enable using RTS 1325 46...

Страница 58: ...output 1334 Chapter 48 JTAG Controller JTAGC 48 1 Introduction 1337 48 1 1 Block diagram 1337 48 1 2 Features 1338 48 1 3 Modes of operation 1338 48 1 3 1 Reset 1338 48 1 3 2 IEEE 1149 1 2001 defined...

Страница 59: ...1 2001 register 1345 48 4 4 JTAGC block instructions 1345 48 4 4 1 IDCODE instruction 1346 48 4 4 2 SAMPLE PRELOAD instruction 1346 48 4 4 3 SAMPLE instruction 1346 48 4 4 4 EXTEST External test instr...

Страница 60: ...KV4x Reference Manual Rev 2 02 2015 60 Preliminary Freescale Semiconductor Inc...

Страница 61: ...dentify different numbering systems This suffix Identifies a b Binary number For example the binary equivalent of the number 5 is written 101b In some cases binary numbers are shown with the prefix 0b...

Страница 62: ...4 XAD 7 0 Numbers in brackets and separated by a colon represent either A subset of a register s named field For example REVNO 6 4 refers to bits 6 4 that are part of the COREREV field that occupies...

Страница 63: ...nit based on ARMv7 M architecture up to 150 MHz operating frequency System System integration module SIM Power management and mode controllers PMC Multiple power modes available based on run wait stop...

Страница 64: ...ments include an ARMv7 Thumb 2 DSP ported from the ARMv7 A R profile architectures providing 32 bit instructions with SIMD single instruction multiple data DSP style multiply accumulates and saturatin...

Страница 65: ...sters and bus slaves allowing all bus masters to access different bus slaves simultaneously and providing arbitration among the bus masters when they access the same slave Peripheral bridges The perip...

Страница 66: ...ing clock modules are available on this device Table 2 5 Clock modules Module Description Multi clock generator MCG The MCG provides several clock sources for the MCU that include Phase locked loop PL...

Страница 67: ...on an external pin or set as one of the inputs to the comparator or ADC 2 2 7 Timer modules The following timer modules are available on this device Table 2 8 Timer modules Module Description Programm...

Страница 68: ...mpare Interrupt generated on Timer Compare Hardware trigger generated on Timer Compare Pulse Width Modulator A PWMA eFlexPWM module contains four identical submodules with up to three outputs per subm...

Страница 69: ...communication interfaces are available on this device Table 2 9 Communication modules Module Description Flex Controller Area Network FlexCAN Supports CAN protocol according to the CAN 2 0 B protocol...

Страница 70: ...28 150 128 24 18 11 0 8 Yes 2 1 4 2 1 1 1 64 44F1283 150 128 24 13 6 0 8 Yes 2 1 4 2 1 1 1 48 44F64 150 64 16 18 11 0 8 Yes 2 1 4 2 1 1 1 64 44F643 150 64 16 13 6 0 8 Yes 2 1 4 2 1 1 1 48 43F128 150 1...

Страница 71: ...8 channels and FTM1 2channels are available 8 2 FTM0 8 channels are available FTM1 2channels are available 3 Package Your Way Chapter 2 Introduction KV4x Reference Manual Rev 2 02 2015 Freescale Semic...

Страница 72: ...Orderable part numbers and features KV4x Reference Manual Rev 2 02 2015 72 Preliminary Freescale Semiconductor Inc...

Страница 73: ...figuration Table 3 1 Reference links to related information Topic Related module Reference Full description ARM Cortex M4 core ARM Cortex M4 Technical Reference Manual System memory map System memory...

Страница 74: ...oupled to the upper half system RAM SRAM_U Private peripheral PPB bus The PPB provides access to these modules ARM modules such as the NVIC ITM DWT FBP and ROM table Freescale Miscellaneous Control Mo...

Страница 75: ...Module PPB Figure 3 2 NVIC configuration 3 2 1 Interrupt priority levels This device supports 16 priority levels for interrupts Therefore in the NVIC each source in the IPR registers contains 4 bits...

Страница 76: ...0000_0044 17 1 DMA channel 1 17 transfer complete DMA 0x0000_0048 18 2 DMA channel 2 18 transfer complete DMA 0x0000_004C 19 3 DMA channel 3 19 transfer complete DMA 0x0000_0050 20 4 DMA channel 4 20...

Страница 77: ...46 30 0x0000_00BC 47 31 UART0 status sources UART0 0x0000_00C0 48 32 UART0 error sources UART0 0x0000_00C4 49 33 UART1 status sources UART1 0x0000_00C8 50 34 UART1 error sources UART1 0x0000_00CC 51 3...

Страница 78: ...68 90 74 0x0000_016C 91 75 FLexCAN0 OR ed Message buffer 0 15 CAN0 0x0000_0170 92 76 FLexCAN0 Bus Off CAN0 0x0000_0174 93 77 FLexCAN0 Error CAN0 0x0000_0178 94 78 FLexCAN0 Transmit Warning CAN0 0x0000...

Страница 79: ...er AWIC Configuration This section summarizes how the module has been configured in the chip Full documentation for this module is provided by ARM and can be found at arm com Asynchronous Wake up Inte...

Страница 80: ...C Address match wakeup UART Active edge on RXD LPTMR Functional in Stop VLPS modes FlexCAN Functional in Stop mode NMI Non maskable interrupt 3 4 FPU Configuration This section summarizes how the modu...

Страница 81: ...AG controller cJTAG Figure 3 5 JTAGC Controller configuration Table 3 8 Reference links to related information Topic Related module Reference Full description JTAGC JTAGC Signal multiplexing Port cont...

Страница 82: ...JTAG Controller Configuration KV4x Reference Manual Rev 2 02 2015 82 Preliminary Freescale Semiconductor Inc...

Страница 83: ...n a Package Your Way program for Kinetis MCUs Visit freescale com KPYW for more details Table 4 1 KV4x flash memory size Device Flash KB Block 0 flash address range MKV46F256VLL15 256 0000_0000 0003 _...

Страница 84: ...flash memory is always configured in NVM normal There are no operating conditions in which the flash is configured for NVM special mode 4 5 Erase All Flash Contents An Erase All Flash Blocks operation...

Страница 85: ...escale com KPYW for more details Table 4 2 SRAM size Freescale part number SRAM KB MKV46F256VLL15 32 MKV46F256VLH15 32 MKV46F128VLL15 24 MKV46F128VLH15 24 MKV44F128VLL15 24 MKV44F128VLH15 24 MKV44F128...

Страница 86: ...AM_L and SRAM_U ranges form a contiguous block in the memory map As such SRAM_L is anchored to 0x1FFF_FFFF and occupies the space before this ending address SRAM_U is anchored to 0x2000_0000 and occup...

Страница 87: ...ined down to VLLS3 mode In VLLS2 the region of SRAM_U from 0x2000_0000 is powered In VLLS1 and VLLS0 no SRAM is retained 4 10 System Register file This device includes a 32 byte register file that is...

Страница 88: ...System Register file KV4x Reference Manual Rev 2 02 2015 88 Preliminary Freescale Semiconductor Inc...

Страница 89: ...paces that are intended for specific purposes There are two aliased address spaces that are mapped into the ICode regions address 0x2000_0000 for code sections that are normally located in the system...

Страница 90: ...tband region for peripheral bridge 0 AIPS Lite0 All Masters 0x4008_0000 0x400F_EFFF Reserved 0x400F_F000 0x400F_FFFF Bitband region for general purpose input output GPIO All Masters 0x4010_0000 0x41FF...

Страница 91: ...s 5 3 2 Peripheral Bridge 0 AIPS Lite 0 Memory Map Slots 0 79 are 32 bit data width modules Slots 80 95 are 16 bit data width modules and Slots 96 126 are 8 bit data width modules Table 5 2 Peripheral...

Страница 92: ...orm 0x4002_0000 32 Flash memory FTMR 0x4002_1000 33 DMA_MUX channel multiplexor 0x4002_2000 34 0x4002_3000 35 0x4002_4000 36 FlexCAN0 0x4002_5000 37 FlexCAN1 0x4002_6000 38 FTM3 8 channel FlexTimer 0x...

Страница 93: ...72 System Integration Module SIM 0x4004_9000 73 Port A mux control 0x4004_A000 74 Port B mux control 0x4004_B000 75 Port C mux control 0x4004_C000 76 Port D mux control 0x4004_D000 77 Port E mux cont...

Страница 94: ...6_C000 108 0x4006_D000 109 0x4006_E000 110 0x4006_F000 111 0x4007_0000 112 0x4007_1000 113 0x4007_2000 114 0x4007_3000 115 CMP0 CMP1 CMP2 CMP3 0x4007_4000 116 0x4007_5000 117 0x4007_6000 118 0x4007_70...

Страница 95: ...o edge placement module that requires both fast peripheral clock and PLL clock or PLL 2x clock The primary clocks for the system are generated from the MCGOUTCLK clock The clock generation circuitry p...

Страница 96: ...CG CG CG CG Clock gate 32 kHz IRC PLL FLL MCGOUTCLK MCGPLLCLK MCG MCGFLLCLK 4 MHz IRC FRDIV CG FCRDIV PRDIV nano edge2x clock MCGPLL2XCLK OSCERCLK DIV OUTDIV2 CG fast peripheral clock Figure 6 1 Cloc...

Страница 97: ...ammable from a divide by 1 through divide by 16 setting The following requirements must be met when configuring the clocks for this device 1 The System clock frequency that drives the CPU platform mus...

Страница 98: ...ax High speed Run mode Frequency System CPU clock 120 MHz Fast Peripheral clock 120 MHz Bus Flash clock 24 MHz RUN mode Frequency System CPU clock 100 MHz Fast Peripheral clock 100 MHZ Bus Flash clock...

Страница 99: ...st peripheral clocks are less than or equal to 4 tbd MHz and the bus flash clock is less than or equal to 1 MHz the nanoedge clock is disabled as it cannot support the nanoedge resolution for eFlexPWM...

Страница 100: ...Core System clock Peripheral bridges Core System clock Bus clock Flash clock XBARA XBARB AOI Bus Flash clock LLWU PMC SIM RCM Bus Flash clock LPO Mode controller Bus Flash clock MCM Core System clock...

Страница 101: ...AN Fast Peripheral clock OSCERCLK DSPI Fast Peripheral clock DSPI_SCK I2C Bus Flash clock I2C_SCL UART0 UART1 Fast Peripheral clock Human machine interfaces GPIO Core System clock 6 5 1 nano edge modu...

Страница 102: ...enabled in all modes of operation including all low power modes This 1 kHz source is commonly referred to as LPO clock or 1 kHz LPO clock 6 5 5 PORT digital filter clocking The digital filters in the...

Страница 103: ...clock must remain enabled if the LPTMRx is to continue operating in all required low power modes LPTMRx_PSR PCS LPTMRx prescaler glitch filter clock MCGIRCLK OSCERCLK ERCLK32K LPO Figure 6 5 LPTMRx pr...

Страница 104: ...External clocks The input clocks to the SoC are described in detail in the MCG chapter FlexTimers The FlexTimers have an external clock input FTM_XCLK which must be no faster than 1 4 of the bus_clk f...

Страница 105: ...configured for PSTOP2 only the core and system clocks are gated and the bus clock remains active The bus masters and bus slaves clocked by the system clock enter Stop mode but the bus slaves clocked...

Страница 106: ...and internal power switches enabling the clock generators in the MCG enabling the system and bus clocks but not the core clock and negating the Stop mode signal to the bus masters and bus slaves The...

Страница 107: ...o the SRAM and Flash read port but places all other bus masters and bus slaves into their stop mode Compute Operation can be enabled in either Run mode or VLP Run mode NOTE Do not enter any stop mode...

Страница 108: ...eans the CPOACK bit is polled to determine when the AIPS peripheral space can be accessed without generating a bus error The DMA wakeup is also supported during Compute Operation and causes the CPOACK...

Страница 109: ...p modes VLPS STOP are similar to ARM sleep deep mode The very low power run VLPR operating mode can drastically reduce runtime power when the maximum bus frequency is not required to handle the applic...

Страница 110: ...r CMP can be used NVIC is disabled LLWU is used to wake up SRAM_U and SRAM_L remain powered on content retained and I O states held Sleep Deep Wakeup Reset1 VLLS2 Very Low Leakage Stop2 Most periphera...

Страница 111: ...Brown out Detection ON ON ON ON ON in VLLS1 2 3 optionally disabled in VLLS0 DMA static FF FF static OFF Watchdog FF FF FF FF OFF EWM static FF static static OFF Clocks 1kHz LPO ON ON ON ON ON in VLLS...

Страница 112: ...bit cyclic ADCA B IRC4M only FF FF IRC4M only OFF CMPs 0 1 2 32 HS or LS level compare FF FF HS or LS level compare LS compare in VLLS1 2 3 OFF in VLLS0 6 bit DAC static FF FF static static OFF in VL...

Страница 113: ...ntroller shut off clock sources and or the internal supplies driven from the on chip regulator as defined for the targeted low power mode In wait modes most of the system clocks are not affected by th...

Страница 114: ...s The flash memory on this device should not be programmed or erased while operating in High Speed Run or VLPR power modes Flash Program Restrictions KV4x Reference Manual Rev 2 02 2015 114 Preliminar...

Страница 115: ...d from the security byte of the flash configuration field NOTE The security features apply only to external accesses via debug CPU accesses to the flash are not affected by the status of FSEC In the u...

Страница 116: ...sources of the MCU Boundary scan chain operations work but debugging capabilities are disabled so that the debug port cannot read flash contents Although most debug functions are disabled the debugger...

Страница 117: ...the pinout and other available resources Four debug interfaces are supported IEEE 1149 1 JTAG IEEE 1149 7 JTAG cJTAG Serial Wire Debug SWD ARM Real Time Trace Interface The basic Cortex M4 debug arch...

Страница 118: ...s JTAG AP Bridge to DFT BIST resources ROM Table Identifies which debug IP is available Core Debug Singlestep Register Access Run Core Status CoreSight Trace Funnel not shown in figure The CSTF combin...

Страница 119: ...a match so providing hardware breakpoint capability TPIU Trace Port Inteface Unit Asynchronous Mode 1 pin TRACE_SWO available on JTAG_TDO MCM Miscellaneous Control Module The MCM provides miscellaneo...

Страница 120: ...ntrol registers Through the ARM Debug Access Port DAP the debugger has access to the status and control elements implemented as registers on the DAP bus as shown in the following figure These register...

Страница 121: ...AP SELECT 7 4 0x0 selects the bank with Status and Ctrl A 3 2 2 b00 selects the Status Register A 3 2 2 b01 selects the Control Register SELECT 7 4 0xF selects the bank with IDR A 3 2 2 b11 selects t...

Страница 122: ...GREQ N Set to configure the system to be held in reset after the next recovery from a VLLSx mode This bit holds the in reset when VLLSx modes are exited to allow the debugger time to re initialize deb...

Страница 123: ...Mass erase is enabled 6 Backdoor Access Key Enable Indicates if the MCU has the backdoor access key enabled 0 Disabled 1 Enabled 7 LP Enabled Decode of LPLLSM control bits to indicate that VLPS LLS or...

Страница 124: ...bug reset CDBGRSTREQ bit within the SWJ DP CTRL STAT register in the TCLK domain that allows the debugger to reset the debug logic TRST asserted via the cJTAG escape command System POR reset Conversel...

Страница 125: ...ebugging to trace Operating System OS and application events and emits diagnostic system information The ITM emits trace information as packets There are four sources that can generate packets If mult...

Страница 126: ...les are kept static or powered off the debugger cannot gather any debug data for the duration of the low power mode In the case that the debugger is held static the debug port returns to full function...

Страница 127: ...he system frequency is limited but if a module does not have a limitation in its functionality it is still listed as FF static Module register states and associated memories are retained OFF Modules a...

Страница 128: ...Debug Security KV4x Reference Manual Rev 2 02 2015 128 Preliminary Freescale Semiconductor Inc...

Страница 129: ...bug reset JTAG reset nTRST reset Each of the system reset sources has an associated bit in the system reset status SRS registers See the Reset Control Module for register details The MCU can exit and...

Страница 130: ...ocessor exits reset it performs the following Reads the start SP SP_main from vector table offset 0 Reads the start PC from vector table offset 4 LR is set to 0xFFFF_FFFF The on chip peripheral module...

Страница 131: ...eup from VLLS The reset value for each filter defaults to off non detect The LPO filter is simple with a fixed filter value count of 3 There is also a synchronizer on the input signal that results in...

Страница 132: ...s LLS mode exits via RESET pin and any VLLS mode exits via a wakeup or reset event the SRSL WAKEUP bit in mode controller module is set indicating the low leakage mode was active prior to the last sys...

Страница 133: ...is the result of the core being locked because of an unrecoverable exception following the activation of the processor s built in system state protection hardware The LOCKUP condition causes a system...

Страница 134: ...em reset 10 2 3 3 Resetting the Debug subsystem Use the CDBGRSTREQ bit within the SWJ DP CTRL STAT register to reset the debug modules However as explained below using the CDBGRSTREQ bit does not rese...

Страница 135: ...t as shown in the following table Table 10 2 Flash Option Register Bit Definitions Bit Num Field Value Definition 7 6 Reserved Reserved for future expansion 5 FAST_INIT Select initialization speed on...

Страница 136: ...eld in this static state until the internally regulated supplies have reached a safe operating voltage as determined by the LVD The Mode Controller reset logic then controls a sequence to exit reset 1...

Страница 137: ...NMI function is disabled in the NMI_DIS field the CPU begins execution at the PC location If the NMI input is low and the NMI function is enabled in the NMI_DIS field this results in an NMI interrupt...

Страница 138: ...Boot KV4x Reference Manual Rev 2 02 2015 138 Preliminary Freescale Semiconductor Inc...

Страница 139: ...pt module features 32 pin ports NOTE Not all pins are available on the device See the following section for details Each 32 pin port is assigned one interrupt Table 11 1 Ports summary Feature Port A P...

Страница 140: ...rol Yes Yes Yes Yes Yes Pin mux at reset PTA0 PTA1 PTA2 PTA3 PTA4 ALT7 Others ALT0 ALT0 ALT0 ALT0 ALT0 Lock bit Yes Yes Yes Yes Yes Interrupt and DMA request Yes Yes Yes Yes Yes Digital glitch filter...

Страница 141: ...fault ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 126 B5 PTC19 DISABLED PTC19 UART3_CTS_ b ENET0_1588_ TMR3 FLEXPWMB_ B3 134 M10 VSS DISABLED VSS 135 F8 VDD DISABLED VDD 137 C9 PTD8 LLWU_P24 DISABLED PTD8...

Страница 142: ...0 FTM1_CH0 UART0_TX 17 8 PTE21 ADCA_CH7b ADCA_CH7b PTE21 FTM1_CH1 UART0_RX 18 9 ADCA_CH2 ADCA_CH2 ADCA_CH2 19 10 ADCA_CH3 ADCA_CH3 ADCA_CH3 20 11 ADCA_CH6c ADCA_CH6c ADCA_CH6c 21 12 ADCA_CH7c ADCA_CH7...

Страница 143: ...45 PTA15 CMP3_IN1 CMP3_IN1 PTA15 SPI0_SCK UART0_RX 46 PTA16 CMP3_IN2 CMP3_IN2 PTA16 SPI0_SOUT UART0_CTS_ b UART0_COL_ b 47 PTA17 ADCA_CH7e ADCA_CH7e PTA17 SPI0_SIN UART0_RTS_ b 48 30 VDD VDD VDD 49 31...

Страница 144: ..._PCS3 UART1_RTS_ b FTM0_CH0 FLEXPWMA_ A3 XBAR0_IN11 71 104 B11 PTC1 LLWU_P6 ADCB_CH7b ADCB_CH7b PTC1 LLWU_P6 SPI0_PCS3 UART1_RTS_ b FTM0_CH0 FLEXPWMA_ A3 XBAR0_IN11 72 45 35 PTC2 ADCB_CH6c CMP1_IN0 AD...

Страница 145: ...0 FTM3_CH6 82 115 C7 PTC10 ADCD_CH7d ADCD_CH7d PTC10 I2C1_SCL FTM3_CH6 FLEXPWMB_ A3 83 56 PTC11 LLWU_P11 ADCB_CH6e ADCB_CH6e PTC11 LLWU_P11 FTM3_CH7 83 116 B7 PTC11 LLWU_P11 ADCD_CH6e ADCD_CH6e PTC11...

Страница 146: ...LLWU_P14 DISABLED PTD4 LLWU_P14 SPI0_PCS1 UART0_RTS_ b FTM0_CH4 FLEXPWMA_ A2 EWM_IN SPI0_PCS0 97 131 A4 PTD4 LLWU_P14 DISABLED PTD4 LLWU_P14 SPI0_PCS1 UART0_RTS_ b FTM0_CH4 FLEXPWMA_ A2 EWM_IN SPI1_PC...

Страница 147: ...99 79 78 77 76 PTD6 LLWU_P15 PTD6 LLWU_P15 PTC7 PTC7 PTC6 LLWU_P10 PTC6 LLWU_P10 PTC5 LLWU_P9 PTC5 LLWU_P9 PTC4 LLWU_P8 PTC4 LLWU_P8 50 49 48 47 46 45 44 43 42 41 PTA18 VSS VDD PTA17 PTA16 PTA15 PTA1...

Страница 148: ...15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 64 63 62 61 PTD7 PTD6 LLWU_P15 PTD5 PTD4 LLWU_P14 PTD3 PTD2 LLWU_P13 PTD1 PTD0 LLWU_P12 PTC11 LLWU_P11 PTC10 PTC9 PTC8 PTC7 PTC6 LLWU_P10 PTC5 LLWU_P9 PTC4 LLWU_P8...

Страница 149: ...LLWU_P8 36 35 34 33 PTC3 LLWU_P7 ADCB_CH6c CMP1_IN0 ADCB_CH7b ADCB_CH6b 32 31 30 29 28 27 26 25 PTB17 PTB16 ADCB_CH7e CMP3_IN5 ADCA_CH6e CMP2_IN2 ADCB_CH3 ADCB_CH2 RESET_b PTA19 PTA3 PTA2 PTA1 PTA0 24...

Страница 150: ...Pinout diagrams KV4x Reference Manual Rev 2 02 2015 150 Preliminary Freescale Semiconductor Inc...

Страница 151: ...specific device 12 2 1 Features The PORT module has the following features Pin interrupt Interrupt flag and enable registers for each pin Support for edge sensitive rising falling both or level sensi...

Страница 152: ...bled GPIO and up to six chip specific digital functions Pad configuration fields are functional in all digital pin muxing modes 12 2 2 Modes of operation 12 2 2 1 Run mode In Run mode the PORT operate...

Страница 153: ...ace detailed signal description Signal I O Description PORTx 31 0 I O External interrupt State meaning Asserted pin is logic 1 Negated pin is logic 0 Timing Assertion may occur at any time and can ass...

Страница 154: ...5 1 160 4004_9044 Pin Control Register n PORTA_PCR17 32 R W See section 12 5 1 160 4004_9048 Pin Control Register n PORTA_PCR18 32 R W See section 12 5 1 160 4004_904C Pin Control Register n PORTA_PCR...

Страница 155: ...38 Pin Control Register n PORTB_PCR14 32 R W See section 12 5 1 160 4004_A03C Pin Control Register n PORTB_PCR15 32 R W See section 12 5 1 160 4004_A040 Pin Control Register n PORTB_PCR16 32 R W See s...

Страница 156: ...ee section 12 5 1 160 4004_B030 Pin Control Register n PORTC_PCR12 32 R W See section 12 5 1 160 4004_B034 Pin Control Register n PORTC_PCR13 32 R W See section 12 5 1 160 4004_B038 Pin Control Regist...

Страница 157: ...Pin Control Register n PORTD_PCR9 32 R W See section 12 5 1 160 4004_C028 Pin Control Register n PORTD_PCR10 32 R W See section 12 5 1 160 4004_C02C Pin Control Register n PORTD_PCR11 32 R W See sect...

Страница 158: ...004_D018 Pin Control Register n PORTE_PCR6 32 R W See section 12 5 1 160 4004_D01C Pin Control Register n PORTE_PCR7 32 R W See section 12 5 1 160 4004_D020 Pin Control Register n PORTE_PCR8 32 R W Se...

Страница 159: ...ee section 12 5 1 160 4004_D07C Pin Control Register n PORTE_PCR31 32 R W See section 12 5 1 160 4004_D080 Global Pin Control Low Register PORTE_GPCLR 32 W always reads 0 0000_0000h 12 5 2 163 4004_D0...

Страница 160: ...tions chapter for reset values per port DSE field Varies by port See the Signal Multiplexing and Signal Descriptions chapter for reset values per port PFE field Varies by port See Signal Multiplexing...

Страница 161: ...10 Reserved 0111 Reserved 1000 ISF flag and Interrupt when logic 0 1001 ISF flag and Interrupt on rising edge 1010 ISF flag and Interrupt on falling edge 1011 ISF flag and Interrupt on either edge 110...

Страница 162: ...igured as a digital input Refer to the device data sheet for filter characteristics 3 Reserved This field is reserved This read only field is reserved and always has the value 0 2 SRE Slew Rate Enable...

Страница 163: ...bits 15 0 that are selected by GPWE 12 5 3 Global Pin Control High Register PORTx_GPCHR Only 32 bit writes are supported to this register Address Base address 84h offset Bit 31 30 29 28 27 26 25 24 2...

Страница 164: ...flag will be cleared automatically at the completion of the requested DMA transfer Otherwise the flag remains set until a logic 1 is written to the flag If the pin is configured for a level sensitive...

Страница 165: ...27 26 25 24 23 22 21 20 19 18 17 16 R 0 W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R 0 CS W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PORTx_DFCR field descriptions...

Страница 166: ...ster PORT_PCRn associated with it The upper half of the Pin Control register configures the pin s capability to either interrupt the CPU or request a DMA transfer on a rising falling edge or both edge...

Страница 167: ...menting an external pull resistor will ensure a pin does not float when its input buffer is enabled note that the internal pull resistor is automatically disabled whenever the output buffer is enabled...

Страница 168: ...the interrupt status flag is set for any enabled DMA request in that port The DMA request negates after the DMA transfer is completed because that clears the interrupt status flags for all enabled DMA...

Страница 169: ...r clock either the bus clock or the LPO clock If the synchronized input and the output of the digital filter remain different for a number of filter clock cycles equal to the filter width register con...

Страница 170: ...Functional description KV4x Reference Manual Rev 2 02 2015 170 Preliminary Freescale Semiconductor Inc...

Страница 171: ...clocking configuration System clock divide values Architectural clock gating control Flash and system RAM size configuration FlexTimer external clock hardware trigger and fault source selection UART0...

Страница 172: ...h 13 2 7 185 4004_8024 System Device Identification Register SIM_SDID 32 R See section 13 2 8 186 4004_8034 System Clock Gating Control Register 4 SIM_SCGC4 32 R W F000_0030h 13 2 9 188 4004_8038 Syst...

Страница 173: ..._7000h base 0h offset 4004_7000h Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R 0 OSC32KSEL 0 W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R RAMSIZE 0 W Res...

Страница 174: ...alue 0 13 2 2 System Options Register 2 SIM_SOPT2 SOPT2 contains the controls for selecting many of the module clock source options on this device See the Clock Distribution chapter for more informati...

Страница 175: ...e clock select Selects the core system clock or MCG output clock MCGOUTCLK as the trace clock source 0 MCGOUTCLK 1 Core system clock 11 8 Reserved This field is reserved This read only field is reserv...

Страница 176: ...ardware trigger 2 1 XBARA output 37 drives FTM3 hardware trigger 2 29 FTM3TRG1SRC FlexTimer 3 Hardware Trigger 1 Source Select Selects the source of FTM3 hardware trigger 1 0 PDB1 output trigger drive...

Страница 177: ...s the source of FTM0 hardware trigger 1 0 PDB0 output trigger drives FTM0 hardware trigger 1 1 FTM1 channel match drives FTM0 hardware trigger 1 16 FTM0TRG0SRC FlexTimer 0 Hardware Trigger 0 Source Se...

Страница 178: ...lt 2 must be configured for the FTM module fault function through the appropriate pin control register in the port control module 0 FTM0_FLT2 pin 1 CMP2 out 1 FTM0FLT1 FTM0 Fault 1 Select Selects the...

Страница 179: ...C UART 1 receive data source select Selects the source for the UART 1 receive data 00 UART1_RX pin 01 CMP0 10 CMP1 11 Reserved 5 Reserved This field is reserved This read only field is reserved and al...

Страница 180: ...ion 31 16 Reserved This field is reserved This read only field is reserved and always has the value 0 15 14 ADCBALTTRGEN ADCB alternate trigger enable Enable alternative conversion triggers for ADCB 0...

Страница 181: ...is reserved and always has the value 0 ADCATRGSEL ADCA trigger select Selects the ADCA trigger source when alternative triggers are functional in stop and VLPS modes 0000 PDB external trigger pin inp...

Страница 182: ...30 FTM3OCH6SRC FTM3 channel 6 output source 0 FTM3_CH6 pin is output of FTM3 channel 6 output 1 FTM3_CH6 pin is output of FTM3 channel 6 output modulated by carrier frequency clock as per FTM3CFSEL 29...

Страница 183: ...M0CFSEL 21 FTM0OCH5SRC FTM0 channel 5 output source 0 FTM0_CH5 pin is output of FTM0 channel 5 output 1 FTM0_CH5 pin is output of FTM0 channel 5 output modulated by carrier frequency clock as per FTM0...

Страница 184: ...the carrier signal for FTM0 Timer Modulation mode 7 4 Reserved This field is reserved This read only field is reserved and always has the value 0 3 FTM3SYNCBIT FTM3 Hardware Trigger 0 Software Synchr...

Страница 185: ...1 FTM3 external clock driven by FTM_CLK1 pin 10 FTM3 external clock driven by FTM_CLK2 pin 11 Reserved 29 28 Reserved This field is reserved This read only field is reserved and always has the value 0...

Страница 186: ...ture source select Selects the source for FTM1 channel 0 input capture NOTE When the FTM is not in input capture mode clear this field 00 FTM1_CH0 signal 01 CMP0 output 10 CMP1 output 11 Reserved Rese...

Страница 187: ...s 0110 Kinetis V series 19 16 Reserved This field is reserved This read only field is reserved and always has the value 0 15 12 REVID Device revision number Specifies the silicon implementation number...

Страница 188: ...escription 31 28 Reserved This field is reserved This read only field is reserved and always has the value 1 27 eFlexPWM3 eFlexPWM submodule 3 Clock Gate Control This bit controls the clock gate to th...

Страница 189: ...RT0 UART0 Clock Gate Control This bit controls the clock gate to the UART0 module 0 Clock disabled 1 Clock enabled 9 7 Reserved This field is reserved This read only field is reserved and always has t...

Страница 190: ...ADC ADC Clock Gate Control This bit controls the clock gate to the ADC module 0 Clock disabled 1 Clock enabled 27 AOI AOI Clock Gate Control This bit controls the clock gate to the AOI module 0 Clock...

Страница 191: ...Control This bit controls the clock gate to the Port C module 0 Clock disabled 1 Clock enabled 10 PORTB Port B Clock Gate Control This bit controls the clock gate to the Port B module 0 Clock disabled...

Страница 192: ...et 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 SIM_SCGC6 field descriptions Field Description 31 26 Reserved This field is reserved This read only field is reserved and always has the value 0 25 FTM1 FTM1 Clock G...

Страница 193: ...ols the clock gate to the SPI0 module 0 Clock disabled 1 Clock enabled 11 7 Reserved This field is reserved This read only field is reserved and always has the value 0 6 FTM3 FTM3 Clock Gate Control T...

Страница 194: ...tion 31 9 Reserved This field is reserved This read only field is reserved and always has the value 0 8 DMA DMA Clock Gate Control This bit controls the clock gate to the DMA module 0 Clock disabled 1...

Страница 195: ...T 0000 Divide by 1 0001 Divide by 2 0010 Divide by 3 0011 Divide by 4 0100 Divide by 5 0101 Divide by 6 0110 Divide by 7 0111 Divide by 8 1000 Divide by 9 1001 Divide by 10 1010 Divide by 11 1011 Divi...

Страница 196: ...it is loaded with either 0001 or 1111 depending on FTF_FOPT LPBOOT The flash clock frequency must be an integer divide of the system clock frequency 0000 Divide by 1 0001 Divide by 2 0010 Divide by 3...

Страница 197: ...eld is reserved This read only field is reserved and always has the value 1 27 24 PFSIZE Program flash size This field specifies the amount of program flash memory available on the device as set by IF...

Страница 198: ...not need to be relocated out of Flash memory The wakeup time from Wait mode is extended when this bit is set 0 Flash remains enabled during Wait mode 1 Flash is disabled for the duration of Wait mode...

Страница 199: ...High SIM_UIDH Address 4004_7000h base 1054h offset 4004_8054h Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R UID W Reset x x x x x x x x x x x x x x x x x...

Страница 200: ...field descriptions Field Description UID Unique Identification Unique identification for the device 13 2 19 Unique Identification Register Low SIM_UIDL Address 4004_7000h base 1060h offset 4004_8060h...

Страница 201: ...Reserved This field is reserved This read only field is reserved and always has the value 0 3 1 TRACEDIV Trace clock divider divisor This field sets the divide value for the fractional clock divider u...

Страница 202: ...nterval trigger 0 and PDB1 interval trigger 0 10 PDB0 interval trigger 0 11 PDB1 interval trigger 0 17 Reserved This field is reserved This read only field is reserved and always has the value 0 16 EW...

Страница 203: ...lue 0 13 2 22 Miscellaneous Control Register 2 SIM_MISCTRL2 Address 4004_7000h base 1070h offset 4004_8070h Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R 0 SYNCCMP3SAMPL EWIN SYNCCMP2SAMPL EWI...

Страница 204: ...0 Disable bypass synchronizer 1 Enable 20 SYNCCMP0SAMPLEWIN Synchronize XBARA s output for CMP0 s Sample Window Input with flash slow clock This field controls the synchronizer between XBARA s output...

Страница 205: ...nto fast peripherials through xbar 0 Disable bypass synchronizer 1 Enable 10 SYNCXBARAPITTRIG2 Synchronize XBARA s Input PIT Trigger 2 with fast clock This field controls the synchronizer between PIT...

Страница 206: ...is reserved This read only field is reserved and always has the value 0 1 WDOGCLKS WDOG Clock Select This write once bit selects the clock source of the WDOG2008 watchdog NOTE This is the choice of t...

Страница 207: ...3 12 11 10 9 8 7 6 5 4 3 2 1 0 R 0 SRPWRRDY SRPWRDETEN SR12STDBY 0 SR27STDBY SRPDN W Reset 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 SIM_PWRC field descriptions Field Description 31 26 Reserved This field is re...

Страница 208: ...ge regulator 1 2 V supply placed in normal mode and SR12STDBY is write protected until chip reset 11 Nanoedge regulator 1 2 V supply placed in standby mode and SR12STDBY is write protected until chip...

Страница 209: ...11 Nanoedge regulator placed in powerdown mode and SRPDN is write protected until chip reset 13 2 25 ADC Channel 6 7 Mux Control Register SIM_ADCOPT Address 4004_7000h base 1108h offset 4004_8108h Bi...

Страница 210: ...annel to ADCB channel 7 000 ADCB MUX1 s channel a 001 ADCB MUX1 s channel b 010 ADCB MUX1 s channel c 011 ADCB MUX1 s channel d 100 ADCB MUX1 s channel e 101 ADCB MUX1 s channel f 110 ADCB MUX1 s chan...

Страница 211: ...s the value 0 ADCACH6SEL ADCA MUX0 selection for ADCA channel 6 Selects ADCA MUX0 s channel to ADCA channel 6 000 ADCA MUX0 s channel a 001 ADCA MUX0 s channel b 010 ADCA MUX0 s channel c 011 ADCA MUX...

Страница 212: ...Functional description KV4x Reference Manual Rev 2 02 2015 212 Preliminary Freescale Semiconductor Inc...

Страница 213: ...nds sent by a master or host communicating on one of those ports The host master can be a firmware download application running on a PC or an embedded host communicating with the Kinetis Flashloader R...

Страница 214: ...supported FlashEraseRegion Erase a range of sectors in flash Not supported WriteMemory Write data to memory Not supported ReadMemory Read data from memory Not supported FlashSecurityDisable Attempt t...

Страница 215: ...tis Flashloader begins executing flashloader operations begin 1 The flashloader initializes the data and bss sections 2 All supported peripherals are initialized 3 The flashloader waits for communicat...

Страница 216: ...te I2Cn entered interrupt state Ping packet received on UARTn Shutdown unused Peripherals Jump to user application Enter bootloader state machine No Yes Yes No No No No Yes No Yes Yes Yes Has Has Was...

Страница 217: ...sponse command Commands may include an optional data phase If the data phase is incoming from host to flashloader then the data phase is part of the original command If the data phase is outgoing from...

Страница 218: ...ing data phase The protocol for a command with an incoming data phase contains Command packet from host Generic response command packet to host Incoming data packets from host Generic response command...

Страница 219: ...packets while it the host is waiting for the response to a command If the Generic Response packet prior to the start of the data phase does not have a status of kStatus_Success then the data phase is...

Страница 220: ...ire operation 14 2 4 3 Command with outgoing data phase The protocol for a command with an outgoing data phase contains Command packet from host ReadMemory Response command packet to host kCommandFlag...

Страница 221: ...he data phase is really considered part of the response command The host may not send any further packets while it the host is waiting for the response to a command If the ReadMemory Response command...

Страница 222: ...is packetized NOTE The term target refers to the Kinetis Flashloader device There are 6 types of packets used in the device Ping packet Ping Response packet Framing packet Command packet Data packet...

Страница 223: ...coming Ping packet to determine the baud rate before replying with the Ping Response packet Once the Ping Response packet is received by the host the connection is established and the host starts send...

Страница 224: ...Packet Format Byte Value Parameter 0 0x5A start byte 1 0xAn packetType The Packet Type field specifies the type of the packet from one of the defined types below Table 14 6 packetType Field packetTyp...

Страница 225: ...mand packet carries a 32 bit command header and a list of 32 bit parameters Table 14 7 Command Packet Format Command Packet Format 32 bytes Command Header 4 bytes 28 bytes for Parameters Max 7 paramet...

Страница 226: ...packets and data packets are embedded into framing packets for all of the transfers Table 14 9 Commands that are supported Command Name 0x01 FlashEraseAll 0x02 FlashEraseRegion 0x03 ReadMemory 0x04 W...

Страница 227: ...n is determined by the last command sent from the host The data packet is also wrapped within a framing packet to ensure the correct packet data is received The contents of a data packet are simply th...

Страница 228: ...e packet contains the framing packet data and the command packet data with the command response tag set to a GetPropertyResponse tag value 0xA7 The parameter count field in the header is set to greate...

Страница 229: ...ch supported property has a unique 32 bit tag associated with it The tag occupies the first parameter of the command packet The target returns a GetPropertyResponse packet with the property values for...

Страница 230: ...00001 CurrentVersion The GetProperty command has no data phase Response In response to a GetProperty command the target will send a GetPropertyResponse packet with the response tag set to 0xA7 The par...

Страница 231: ...Kinetis Flashloader However the SetProperty command can only change the value of properties that are writable see Table 14 31 Properties used by Get SetProperty Commands If you try to set a value for...

Страница 232: ...ketType_Command length 0x0C 0x00 crc16 0x67 0x8D Command packet commandTag 0x0C SetProperty with property tag 10 flags 0x00 reserved 0x00 parameterCount 0x02 propertyTag 0x0000000A VerifyWrites proper...

Страница 233: ...n the commandTag field of the command packet The FlashEraseAll command requires no parameters Process command Host Target FlashEraseAll 0x5a a4 04 00c4 2e 01 00 00 00 0x5a a4 0c 00 53 63 a0 00 04 02 0...

Страница 234: ...s not fit in the flash memory space the FlashEraseRegion command will fail and return kStatus_FlashAddressError 0x102 If any part of the region specified is protected the FlashEraseRegion command will...

Страница 235: ...ory command while WriteMemory does have a data phase Table 14 23 Parameters for FillMemory Command Byte Command 0 3 Start address of memory to fill 4 7 Number of bytes to write with the pattern The st...

Страница 236: ...quence for FillMemory Command Table 14 24 FillMemory Command Packet Format Example FillMemory Parameter Value Framing packet start byte 0x5A packetType 0xA4 kFramingPacketType_Command length 0x10 0x00...

Страница 237: ...EraseRegion command Writing to flash requires the start address to be If the VerifyWrites property is set to true then writes to flash will also perform a flash verify program operation When writing t...

Страница 238: ...Data Generic Response 0x5a a4 0c 00 23 72a0 00 00 02 00 00 00 00 04 00 00 00 ACK 0x5a a1 Figure 14 12 Protocol Sequence for WriteMemory Command Table 14 26 WriteMemory Command Packet Format Example Wr...

Страница 239: ...7 Read memory command The ReadMemory command returns the contents of memory at the given address for a specified number of bytes This command can read any region of memory accessible by the CPU and no...

Страница 240: ...ytes data 0x5a a5 length 16 CRC 16 32 bytes data ACK 0x5a a1 ACK 0x5a a1 ACK 0x5a a1 ACK 0x5a a1 ACK 0x5a a1 0x5a a4 0c 00 0e 23 a0 00 00 02 00 00 00 00 03 00 00 00 Figure 14 13 Command sequence for r...

Страница 241: ...k pointer to the provided stack pointer address Prior to the jump the system is returned to the reset state The Jump address function argument pointer and stack pointer are the parameters required for...

Страница 242: ...kFramingPacketType_Command length 0x04 0x00 crc16 0x6F 0x46 Command packet commandTag 0x0B reset flags 0x00 reserved 0x00 parameterCount 0x00 The Reset command has no data phase Response The target K...

Страница 243: ...address and the direction bit is set as write An outgoing packet is read by the host with a selected I2C slave address and the direction bit is set as read 0x00 will be sent as the response to host i...

Страница 244: ...han supported length Yes payload data from target No Set payload length to maximum supported length No No Reached maximum Report a timeout Yes End No 2 bytes Read 1 byte from target 0x5A received 0xA4...

Страница 245: ...lid data The SPI bus configuration is Phase 1 data is sampled on rising edges Polarity 1 idle is high MSB is transmitted first For any transfer where the target does not have actual data to send the t...

Страница 246: ...out payload data from target No Set payload length to maximum supported length No No maximum Report a timeout error End Yes End No 2 bytes 0x5A received 0xA4 received Reached retries Send 0x00 to shif...

Страница 247: ...ore than 80 ms between bytes in a fixed UART transmission mode 8 bit data no parity bit and 1 stop bit If the bytes of the ping packet are sent one by one with more than 80 ms delay between them then...

Страница 248: ...retries Figure 14 21 Host reads an ACK from target via UART Wait for ping response Yes Yes End Report Error No No Wait for 1 byte from target Wait for 1 byte from target 0x5A received 0xA7 received Wa...

Страница 249: ...pported at 5 predefined speeds 125 kHz 250 kHz 500 kHz 750 kHz 1 MHz the default transfer rate The host application must use one of the 5 supported speeds for FlexCAN In Flashloader it supports automa...

Страница 250: ...e host reads a ping packet ACK and response from the target Fetch ACK No Yes End No Process NAK Yes Report an error No Yes No Reached maximum Report a timeout error Yes 0x5A received 0xA2 received 0xA...

Страница 251: ...urrentVersion No 01h 4 Current flashloader version AvailablePeripherals No 02h 4 The set of peripherals supported on this chip FlashStartAddress No 03h 4 Start address of program flash FlashSizeInByte...

Страница 252: ...ystem Device Identification register FlashSecurityState No 11h 4 Indicates whether Flash security is enabled 0 Flash security is disabled 1 Flash security is enabled 14 4 1 Property Definitions Get Se...

Страница 253: ...the lowest command tag value is 0x01 To get the bit mask for a given command use this expression mask 1 tag 1 Table 14 34 Command bits Bit 31 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Command Reser...

Страница 254: ..._SlaveTxUnderrun 300 SPI Slave TX Underrun error kStatus_SPI_SlaveRxOverrun 301 SPI Slave RX Overrun error kStatus_SPI_Timeout 302 SPI tranfser timed out kStatus_SPI_Busy 303 SPI instance is already b...

Страница 255: ...rovide reset status information and reset filter control NOTE The RCM registers can be written only in supervisor mode Write accesses in user mode are blocked and will result in a bus error RCM memory...

Страница 256: ...corresponding reset source caused the reset Address 4007_F000h base 0h offset 4007_F000h Bit 7 6 5 4 3 2 1 0 Read POR PIN WDOG 0 LOL LOC LVD WAKEUP Write Reset 1 0 0 0 0 0 1 0 RCM_SRS0 field descripti...

Страница 257: ...s of external clock 1 Reset caused by a loss of external clock 1 LVD Low Voltage Detect Reset If PMC_LVDSC1 LVDRE is set and the supply drops below the LVD trip voltage an LVD reset occurs This field...

Страница 258: ...ield is reserved This read only field is reserved and always has the value 0 3 MDM_AP MDM AP System Reset Request Indicates a reset has been caused by the host debugger system setting of the System Re...

Страница 259: ...served and always has the value 0 2 RSTFLTSS Reset Pin Filter Select in Stop Mode Selects how the reset pin filter is enabled in Stop and VLPS modes and also during VLLS mode On exit from VLLS mode th...

Страница 260: ...er count is 5 00101 Bus clock filter count is 6 00110 Bus clock filter count is 7 00111 Bus clock filter count is 8 01000 Bus clock filter count is 9 01001 Bus clock filter count is 10 01010 Bus clock...

Страница 261: ...1c Reset 1 0 0 0 0 0 1 0 RCM_SSRS0 field descriptions Field Description 7 SPOR Sticky Power On Reset Indicates a reset has been caused by the power on detection logic Because the internal supply volta...

Страница 262: ...etect Reset If PMC_LVDSC1 LVDRE is set and the supply drops below the LVD trip voltage an LVD reset occurs This field is also set by POR 0 Reset not caused by LVD trip or POR 1 Reset caused by LVD tri...

Страница 263: ...st Indicates a reset has been caused by the host debugger system setting of the System Reset Request bit in the MDM AP Control Register 0 Reset not caused by host debugger system setting of the System...

Страница 264: ...Reset memory map and register descriptions KV4x Reference Manual Rev 2 02 2015 264 Preliminary Freescale Semiconductor Inc...

Страница 265: ...de and the functionality available while in each of the modes The SMC is able to function during even the deepest low power modes See AN4503 Power Management for Kinetis and ColdFire MCUs for further...

Страница 266: ...operation for the device The following table describes the power modes available for the device Table 16 1 Power modes Mode Description RUN The MCU can be run at full speed and the internal supply is...

Страница 267: ...System clocks to other masters and bus clocks are gated off after all stop acknowledge signals from supporting peripherals are valid The MCU is placed in a low leakage mode by powering down the intern...

Страница 268: ...ormal RUN mode and AVLP is 0 an attempt to enter VLPR mode using PMCTRL RUNM is blocked and PMCTRL RUNM remains 00b indicating the MCU is still in Normal Run mode NOTE This register is reset on Chip R...

Страница 269: ...bit allows the MCU to enter any very low leakage stop mode VLLSx 0 Any VLLSx mode is not allowed 1 Any VLLSx mode is allowed 0 Reserved This field is reserved This read only field is reserved and alwa...

Страница 270: ...ured during the previous stop mode entry sequence preventing the system from entering that mode This field is cleared by hardware at the beginning of any stop mode entry sequence and is set if the seq...

Страница 271: ...consumption In PSTOP2 only system clocks are gated allowing peripherals running on bus clock to remain fully functional In PSTOP1 both system and bus clocks are gated 00 STOP Normal Stop mode 01 PSTOP...

Страница 272: ...es that trigger Chip POR not VLLS It is unaffected by reset types that do not trigger Chip POR not VLLS See the Reset section details for more information Address 4007_E000h base 3h offset 4007_E003h...

Страница 273: ...er mode is VLLS 1000_0000 Current power mode is HSRUN 16 4 Functional description 16 4 1 Power mode transitions The following figure shows the power mode state transitions available on the chip Any re...

Страница 274: ...s figure Table 16 7 Power mode transition triggers Transition From To Trigger conditions 1 RUN WAIT Sleep now or sleep on exit modes entered with SLEEPDEEP clear controlled in System Control Register...

Страница 275: ...OTE If VLPS was entered directly from RUN transition 7 hardware forces exit back to RUN and does not allow a transition to VLPR 7 RUN VLPS Sleep now or sleep on exit modes entered with SLEEPDEEP set w...

Страница 276: ...to enter Stop mode 3 After all masters have acknowledged they are ready to enter Stop mode requests are made to all bus slaves to enter Stop mode 4 After all slaves have acknowledged they are ready t...

Страница 277: ...disabled in these configurations 16 4 2 5 Transition from stop modes to Debug mode The debugger module supports a transition from STOP WAIT VLPS and VLPW back to a Halted state when the debugger has b...

Страница 278: ...which frequencies are supported Mode protection must be set to allow VLP modes that is PMPROT AVLP is 1 PMCTRL RUNM must be set to 10b to enter VLPR Flash programming erasing is not allowed NOTE Do n...

Страница 279: ...r should be polled to determine when the system has completed entry into HSRUN mode To reenter normal RUN mode clear RUNM Any reset will also clear RUNM and cause the system to exit to normal RUN mode...

Страница 280: ...modes to meet your application needs The stop modes range from a stopped CPU with all I O logic and memory states retained and certain asynchronous mode peripherals operating to a powered down CPU wi...

Страница 281: ...in which VLPS mode can be entered are listed here Entry into stop via the sleep now or sleep on exit with the SLEEPDEEP bit set in the System Control Register in the ARM core while the MCU is in VLPR...

Страница 282: ...upt In the LLWU interrupt service routine ISR the user can poll the LLWU module wake up flags to determine the source of the wake up When entering VLLS each I O pin is latched as configured before exe...

Страница 283: ...ols and settings to be powered off To give time to the debugger to sync with the MCU the MDM AP Control Register includes a Very Low Leakage Debug Request VLLDBGREQ bit that is set to configure the Re...

Страница 284: ...Functional description KV4x Reference Manual Rev 2 02 2015 284 Preliminary Freescale Semiconductor Inc...

Страница 285: ...mory map and register descriptions below describe the registers using byte addresses MCM memory map Absolute address hex Register name Width in bits Access Reset value Section page E008_0008 Crossbar...

Страница 286: ...to AXBS input port n is absent 1 A bus slave connection to AXBS input port n is present 17 2 2 Crossbar Switch AXBS Master Configuration MCM_PLAMC PLAMC is a 16 bit read only register identifying the...

Страница 287: ...0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R Reserved Reserved Reserved W Reset 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 MCM_CR field descriptions Field Description 31 Reserved This field is reserved This...

Страница 288: ...s to SRAM_U array generates a bus error 25 24 SRAMUAP SRAM_U arbitration priority Defines the arbitration scheme and priority for the processor and SRAM backdoor accesses to the SRAM_U array 00 Round...

Страница 289: ...0 MCM_ISR field descriptions Field Description 31 FIDCE FPU input denormal interrupt enable 0 Disable interrupt 1 Enable interrupt 30 29 Reserved This field is reserved This read only field is reserv...

Страница 290: ...rocessor s FPU Once set this bit remains set until software clears the FPSCR IXC bit 0 No interrupt 1 Interrupt occurred 11 FUFC FPU underflow interrupt status This read only bit is a copy of the core...

Страница 291: ...is field is reserved This read only field is reserved and always has the value 0 17 2 5 Compute Operation Control Register MCM_CPO This register controls the Compute Operation Address E008_0000h base...

Страница 292: ...t has not completed 0 CPOREQ Compute Operation request This bit is auto cleared by vector fetching if CPOWOI 1 0 Request is cleared 1 Request Compute Operation 17 3 Functional description This section...

Страница 293: ...FIXCE and a number is inexact FIXC FPU underflow interrupt is enabled FUFCE and an underflow occurs FUFC FPU overflow interrupt is enabled FOFCE and an overflow occurs FOFC FPU divide by zero interrup...

Страница 294: ...Functional description KV4x Reference Manual Rev 2 02 2015 294 Preliminary Freescale Semiconductor Inc...

Страница 295: ...nt 18 3 Low voltage detect LVD system This device includes a system to guard against low voltage conditions This protects memory contents and controls MCU system states during supply voltage variation...

Страница 296: ...t until the supply voltage rises above this threshold The LVD field in the SRS register of the RCM module RCM_SRS LVD is set following an LVD or power on reset 18 3 2 LVD interrupt operation By config...

Страница 297: ...ypes Each register s description provides details For more information about the types of reset on this chip refer to the Reset section details The PMC registers can be written only in supervisor mode...

Страница 298: ...The register s other bits are reset on Chip Reset Not VLLS For more information about these reset types refer to the Reset section details Address 4007_D000h base 0h offset 4007_D000h Bit 7 6 5 4 3 2...

Страница 299: ...ontrol 2 register PMC_LVDSC2 This register contains status and control bits to support the low voltage warning function While the device is in the very low power or low leakage modes the LVD system is...

Страница 300: ...rved This field is reserved This read only field is reserved and always has the value 0 LVWV Low Voltage Warning Voltage Select Selects the LVW trip point voltage VLVW The actual voltage for the warni...

Страница 301: ...ates whether certain peripherals and the I O pads are in a latched state as a result of having been in a VLLS mode Writing 1 to this field when it is set releases the I O pads and certain peripherals...

Страница 302: ...d descriptions continued Field Description 0 Bandgap buffer not enabled 1 Bandgap buffer enabled Memory map and register descriptions KV4x Reference Manual Rev 2 02 2015 302 Preliminary Freescale Semi...

Страница 303: ...able 19 1 Wakeup sources for LLWU inputs Input Wakeup source Input Wakeup source LLWU_P0 PTE1 LLWU_P0 pin LLWU_P12 PTD0 LLWU_P12 pin LLWU_P1 PTE2 LLWU_P1 pin LLWU_P13 PTD2 LLWU_P13 pin LLWU_P2 PTE4 LL...

Страница 304: ...ls on using the LLWU 19 2 1 Features The LLWU module features include Support for up to 32 external input pins and up to 8 internal modules with individual enable bits for MCU interrupt from low leaka...

Страница 305: ...edge event will be detected by the LLWU 19 2 2 3 Debug mode When the chip is in Debug mode and then enters a VLLSx mode no debug logic works in the fully functional low leakage mode Upon an exit from...

Страница 306: ...ion details LLWU memory map Absolute address hex Register name Width in bits Access Reset value Section page 4007_C000 LLWU Pin Enable 1 register LLWU_PE1 8 R W 00h 19 4 1 307 4007_C001 LLWU Pin Enabl...

Страница 307: ...00h base 0h offset 4007_C000h Bit 7 6 5 4 3 2 1 0 Read WUPE3 WUPE2 WUPE1 WUPE0 Write Reset 0 0 0 0 0 0 0 0 LLWU_PE1 field descriptions Field Description 7 6 WUPE3 Wakeup Pin Enable For LLWU_P3 Enables...

Страница 308: ...p input pins LLWU_P7 LLWU_P4 NOTE This register is reset on Chip Reset not VLLS and by reset types that trigger Chip Reset not VLLS It is unaffected by reset types that do not trigger Chip Reset not V...

Страница 309: ...n enabled with falling edge detection 11 External input pin enabled with any change detection 19 4 3 LLWU Pin Enable 3 register LLWU_PE3 LLWU_PE3 contains the field to enable and select the edge detec...

Страница 310: ...enabled with any change detection WUPE8 Wakeup Pin Enable For LLWU_P8 Enables and configures the edge detection for the wakeup pin 00 External input pin disabled as wakeup input 01 External input pin...

Страница 311: ...led as wakeup input 01 External input pin enabled with rising edge detection 10 External input pin enabled with falling edge detection 11 External input pin enabled with any change detection WUPE12 Wa...

Страница 312: ...up Pin Enable For LLWU_P17 Enables and configures the edge detection for the wakeup pin 00 External input pin disabled as wakeup input 01 External input pin enabled with rising edge detection 10 Exter...

Страница 313: ...enabled with falling edge detection 11 External input pin enabled with any change detection 3 2 WUPE21 Wakeup Pin Enable For LLWU_P21 Enables and configures the edge detection for the wakeup pin 00 E...

Страница 314: ...tection for the wakeup pin 00 External input pin disabled as wakeup input 01 External input pin enabled with rising edge detection 10 External input pin enabled with falling edge detection 11 External...

Страница 315: ...nput pin enabled with any change detection 5 4 WUPE30 Wakeup Pin Enable For LLWU_P30 Enables and configures the edge detection for the wakeup pin 00 External input pin disabled as wakeup input 01 Exte...

Страница 316: ...Reset 0 0 0 0 0 0 0 0 LLWU_ME field descriptions Field Description 7 WUME7 Wakeup Module Enable For Module 7 Enables an internal module as a wakeup source input 0 Internal module flag not used as wak...

Страница 317: ...eup Module Enable For Module 0 Enables an internal module as a wakeup source input 0 Internal module flag not used as wakeup source 1 Internal module flag used as wakeup source 19 4 10 LLWU Pin Flag 1...

Страница 318: ...r mode To clear the flag write a one to WUF5 0 LLWU_P5 input was not a wakeup source 1 LLWU_P5 input was a wakeup source 4 WUF4 Wakeup Flag For LLWU_P4 Indicates that an enabled external wakeup pin wa...

Страница 319: ...d by a write of a 1 to the corresponding WUFx bit The wakeup flag WUFx if set will remain set if the associated WUPEx bit is cleared NOTE This register is reset on Chip Reset not VLLS and by reset typ...

Страница 320: ...at an enabled external wakeup pin was a source of exiting a low leakage power mode To clear the flag write a one to WUF11 0 LLWU_P11 input was not a wakeup source 1 LLWU_P11 input was a wakeup source...

Страница 321: ...set 0 0 0 0 0 0 0 0 LLWU_PF3 field descriptions Field Description 7 WUF23 Wakeup Flag For LLWU_P23 Indicates that an enabled external wakeup pin was a source of exiting a low leakage power mode To cle...

Страница 322: ...the flag write a one to WUF17 0 LLWU_P17 input was not a wakeup source 1 LLWU_P17 input was a wakeup source 0 WUF16 Wakeup Flag For LLWU_P16 Indicates that an enabled external wakeup pin was a source...

Страница 323: ...e To clear the flag write a one to WUF29 0 LLWU_P29 input was not a wakeup source 1 LLWU_P29 input was a wakeup source 4 WUF28 Wakeup Flag For LLWU_P28 Indicates that an enabled external wakeup pin wa...

Страница 324: ...kage power mode such as a real time clock module or CMP module the flag from the associated peripheral is accessible as the MWUFx bit The flag will need to be cleared in the peripheral instead of writ...

Страница 325: ...Indicates that an enabled internal peripheral was a source of exiting a low leakage power mode To clear the flag follow the internal peripheral flag clearing mechanism 0 Module 3 input was not a wake...

Страница 326: ...Description 7 FILTF Filter Detect Flag Indicates that the filtered external wakeup pin selected by FILTSEL was a source of exiting a low leakage power mode To clear the flag write a one to FILTF 0 Pi...

Страница 327: ...cription 7 FILTF Filter Detect Flag Indicates that the filtered external wakeup pin selected by FILTSEL was a source of exiting a low leakage power mode To clear the flag write a one to FILTF 0 Pin Fi...

Страница 328: ...s of delay before the detect circuit alerts the system to the wakeup or reset event when the filter function is enabled Four wakeup detect filters are available for selected external pins Glitch filte...

Страница 329: ...least five LPO clock cycles before entering VLLSx mode to allow the filter to initialize NOTE After recovering from a VLLS mode user must restore chip configuration before clearing PMC_REGSC ACKISO I...

Страница 330: ...Functional description KV4x Reference Manual Rev 2 02 2015 330 Preliminary Freescale Semiconductor Inc...

Страница 331: ...d in the chip Crossbar Switch Slave Modules Master Modules M2 M0 M1 S0 S3 ARM core code bus ARM core system bus DMA Flash controller S1 SRAM controller_L S2 Mux Peripheral bridge 0 GPIO controller SRA...

Страница 332: ...found here provides information on the layout configuration and programming of the crossbar switch The crossbar switch connects bus masters and bus slaves using a crossbar switch structure This struct...

Страница 333: ...ter simply sees wait states inserted until the targeted slave port can service the master s request The latency in servicing the request depends on each master s priority level and the responding slav...

Страница 334: ...to use the slave port This is done to save the initial clock of arbitration delay that otherwise would be seen if the same master had to arbitrate to gain control of the slave port If present the flas...

Страница 335: ...ased on the requesting master port Table 20 1 How the Crossbar Switch grants control of a slave port to a master When Then the Crossbar Switch grants control to the requesting master Both of the follo...

Страница 336: ...last master of the slave port was master 1 and master 0 4 and 5 make simultaneous requests they are serviced in the order 4 then 5 then 0 The round robin arbitration mode generally provides a more fa...

Страница 337: ...each assigned to a PACRx field within the PACRA PACRP registers However fewer peripherals are supported on this device See Peripheral Memory Map for details of the peripheral slot assignments for this...

Страница 338: ...e are modules which contain a programming model of control and status registers The system masters read and write these registers through the peripheral bridge The peripheral bridge performs a bus pro...

Страница 339: ...See section 21 6 3 347 4000_004C Peripheral Access Control Register AIPS_PACRH 32 R W See section 21 6 3 347 4000_0050 Peripheral Access Control Register AIPS_PACRI 32 R W See section 21 6 3 347 4000...

Страница 340: ...served This read only field is reserved and always has the value 0 30 MTR0 Master 0 Trusted For Read Determines whether the master is trusted for read accesses 0 This master is not trusted for read ac...

Страница 341: ...value 0 22 MTR2 Master 2 Trusted For Read Determines whether the master is trusted for read accesses 0 This master is not trusted for read accesses 1 This master is trusted for read accesses 21 MTW2...

Страница 342: ...R41 PACR42 PACR43 PACR44 PACR45 PACR46 PACR47 0x48 PACRG PACR48 PACR49 PACR50 PACR51 PACR52 PACR53 PACR54 PACR55 0x4C PACRH PACR56 PACR57 PACR58 PACR59 PACR60 PACR61 PACR62 PACR63 0x50 PACRI PACR64 PA...

Страница 343: ...ipheral allows write accesss When this bit is set and a write access is attempted access terminates with an error response and no peripheral access initiates 0 This peripheral allows write accesses 1...

Страница 344: ...peripheral requires supervisor privilege level for accesses 21 WP2 Write Protect Determines whether the peripheral allows write accesss When this bit is set and a write access is attempted access ter...

Страница 345: ...eral requires supervisor privilege level for accesses 13 WP4 Write Protect Determines whether the peripheral allows write accesss When this bit is set and a write access is attempted access terminates...

Страница 346: ...ipheral requires supervisor privilege level for accesses 5 WP6 Write Protect Determines whether the peripheral allows write accesses When this field is set and a write access is attempted access termi...

Страница 347: ...hese registers Address 4000_0000h base 40h offset 4d i where i 0d to 11d Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R 0 SP0 WP0 TP0 0 SP1 WP1 TP1 0 SP2 WP2 TP2 0 SP3 WP3 TP3 W Reset 0 0 0 0 0...

Страница 348: ...with an error response and no peripheral access initiates 0 This peripheral does not require supervisor privilege level for accesses 1 This peripheral requires supervisor privilege level for accesses...

Страница 349: ...ith an error response and no peripheral access initiates 0 This peripheral does not require supervisor privilege level for accesses 1 This peripheral requires supervisor privilege level for accesses 1...

Страница 350: ...with an error response and no peripheral access initiates 0 This peripheral does not require supervisor privilege level for accesses 1 This peripheral requires supervisor privilege level for accesses...

Страница 351: ...t the master privilege level must indicate the supervisor access attribute and the MPRx MPLn control field for the master must be set If not access terminates with an error response and no peripheral...

Страница 352: ...1 Access support All combinations of access size and peripheral data port width are supported An access that is larger than the target peripheral s data width will be decomposed to multiple smaller a...

Страница 353: ...ive 3 UART0 Transmit Transmit 4 UART1 Recieve Receive 5 UART1 Transmit Transmit 6 flexPWM_WR0 Submodule 0 DMA request to update PWM buffers 7 flexPWM_WR1 Submodule 1 DMA request to update PWM buffers...

Страница 354: ...eceive Receive 17 SPI0 transmit Transmit 18 XBARA_OUT0 19 XBARA_OUT1 20 XBARA_OUT2 21 XBARA_OUT3 22 I2C0 23 24 FTM0 Ch0 Channel 0 25 FTM0 Ch1 Channel 1 26 FTM0 Ch2 Channel 2 27 FTM0 Ch3 Channel 3 28 F...

Страница 355: ...enabled 61 DMAX MUX always enabled 62 DMAX MUX always enabled 63 DMAX MUX always enabled 22 1 2 DMA transfers via PIT trigger The PIT module can trigger a DMA transfer on the first four DMA channels T...

Страница 356: ...x always on slots can be routed to 16 channels 16 independently selectable DMA channel routers The first two channels additionally provide a trigger functionality Each channel router can be assigned t...

Страница 357: ...has no external pins 22 4 Memory map register definition This section provides a detailed description of all memory mapped registers in the DMAMUX DMAMUX memory map Absolute address hex Register name...

Страница 358: ...ots peripheral slots or always on slots in the system NOTE Setting multiple CHCFG registers with the same source value will result in unpredictable behavior This is true even if a channel is disabled...

Страница 359: ...ionally the DMAMUX channels may be divided into two classes Channels that implement the normal routing functionality plus periodic triggering capability Channels that implement only the normal routing...

Страница 360: ...been seen This is illustrated in the following figure DMA request Peripheral request Trigger Figure 22 20 DMAMUX channel triggering normal operation After the DMA request has been serviced the periphe...

Страница 361: ...od to periodically read data from external devices and transfer the results into memory without processor intervention Using the GPIO ports to drive or sample waveforms By configuring the DMA to trans...

Страница 362: ...software should initiate the start of a DMA transfer an always enabled DMA source can be used to provide maximum flexibility When activating a DMA channel via software subsequent executions of the mi...

Страница 363: ...se 22 6 2 Enabling and configuring sources To enable a source with periodic triggering 1 Determine with which DMA channel the source will be associated Note that only the first 2 DMA channels have per...

Страница 364: ...ng the channel 3 Write 0x85 to CHCFG1 base address 0x01 The following code example illustrates steps 1 and 3 above In File registers h define DMAMUX_BASE_ADDR 0x40021000 Example only Following example...

Страница 365: ...e illustrates steps 2 and 3 above In File registers h define DMAMUX_BASE_ADDR 0x40021000 Example only Following example assumes char is 8 bits volatile unsigned char CHCFG0 volatile unsigned char DMAM...

Страница 366: ...In File main c include registers h CHCFG8 0x00 CHCFG8 0x87 Initialization application information KV4x Reference Manual Rev 2 02 2015 366 Preliminary Freescale Semiconductor Inc...

Страница 367: ...rocessor The hardware microarchitecture includes A DMA engine that performs Source and destination address calculations Data movement operations Local memory containing transfer control descriptors fo...

Страница 368: ...channels provide the same functionality This structure allows data transfers associated with one channel to be preempted after the completion of a read write sequence if a higher priority channel acti...

Страница 369: ...al the eDMA engine performs a series of source read destination write operations until the number of bytes specified in the minor loop byte count has moved For descriptors where the sizes are not equa...

Страница 370: ...ware initiation Initiation via a channel to channel linking mechanism for continuous transfers Peripheral paced hardware requests one per channel Fixed priority and round robin channel arbitration Cha...

Страница 371: ...continues operation until the channel retires Wait Before entering Wait mode the DMA attempts to complete its current transfer After the transfer completes the device enters Wait mode 23 3 Memory map...

Страница 372: ...he value of zero Writes to reserved bits in a register are ignored Reading or writing a reserved memory location generates a bus error DMA memory map Absolute address hex Register name Width in bits A...

Страница 373: ...8 R W See section 23 3 17 410 4000_8104 Channel n Priority Register DMA_DCHPRI7 8 R W See section 23 3 17 410 4000_8105 Channel n Priority Register DMA_DCHPRI6 8 R W See section 23 3 17 410 4000_8106...

Страница 374: ...nk Major Loop Count Channel Linking Disabled DMA_TCD0_BITER_ELINKNO 16 R W Undefined 23 3 32 424 4000_9020 TCD Source Address DMA_TCD1_SADDR 32 R W Undefined 23 3 18 411 4000_9024 TCD Signed Source Ad...

Страница 375: ...ed DMA_TCD2_CITER_ELINKYES 16 R W Undefined 23 3 27 418 4000_9056 DMA_TCD2_CITER_ELINKNO 16 R W Undefined 23 3 28 419 4000_9058 TCD Last Destination Address Adjustment Scatter Gather Address DMA_TCD2_...

Страница 376: ...4 4000_9088 TCD Signed Minor Loop Offset Minor Loop and Offset Enabled DMA_TCD4_NBYTES_MLOFFYES 32 R W Undefined 23 3 23 415 4000_908C TCD Last Source Address Adjustment DMA_TCD4_SLAST 32 R W Undefine...

Страница 377: ...DMA_TCD6_SADDR 32 R W Undefined 23 3 18 411 4000_90C4 TCD Signed Source Address Offset DMA_TCD6_SOFF 16 R W Undefined 23 3 19 411 4000_90C6 TCD Transfer Attributes DMA_TCD6_ATTR 16 R W Undefined 23 3...

Страница 378: ...atter Gather Address DMA_TCD7_DLASTSGA 32 R W Undefined 23 3 29 420 4000_90FC TCD Control and Status DMA_TCD7_CSR 16 R W Undefined 23 3 30 421 4000_90FE TCD Beginning Minor Loop Link Major Loop Count...

Страница 379: ...A_TCD9_DADDR 32 R W Undefined 23 3 25 417 4000_9134 TCD Signed Destination Address Offset DMA_TCD9_DOFF 16 R W Undefined 23 3 26 417 4000_9136 TCD Current Minor Loop Link Major Loop Count Channel Link...

Страница 380: ...Undefined 23 3 20 412 4000_9168 TCD Minor Byte Count Minor Loop Disabled DMA_TCD11_NBYTES_MLNO 32 R W Undefined 23 3 21 413 4000_9168 TCD Signed Minor Loop Offset Minor Loop Enabled and Offset Disable...

Страница 381: ...12_CSR 16 R W Undefined 23 3 30 421 4000_919E TCD Beginning Minor Loop Link Major Loop Count Channel Linking Enabled DMA_TCD12_BITER_ELINKYES 16 R W Undefined 23 3 31 423 4000_919E TCD Beginning Minor...

Страница 382: ...416 4000_91D0 TCD Destination Address DMA_TCD14_DADDR 32 R W Undefined 23 3 25 417 4000_91D4 TCD Signed Destination Address Offset DMA_TCD14_DOFF 16 R W Undefined 23 3 26 417 4000_91D6 TCD Current Mi...

Страница 383: ...unt Channel Linking Disabled DMA_TCD15_BITER_ELINKNO 16 R W Undefined 23 3 32 424 23 3 1 Control Register DMA_CR The CR defines the basic operating configuration of the DMA Arbitration can be configur...

Страница 384: ...ed the NBYTES field is a 30 bit vector When minor loop mapping is disabled EMLM is 0 all 32 bits of TCDn word2 are assigned to the NBYTES field Address 4000_8000h base 0h offset 4000_8000h Bit 31 30 2...

Страница 385: ...eved by simply increasing the NBYTES value A larger NBYTES value provides more efficient faster processing 0 A minor loop channel link made to itself goes through channel arbitration before being acti...

Страница 386: ...Field Description 31 VLD Logical OR of all ERR status bits 0 No ERR bits are set 1 At least one ERR bit is set indicating a valid error exists that has not been cleared 30 17 Reserved This field is r...

Страница 387: ...was a configuration error detected in the TCDn_DOFF field TCDn_DOFF is inconsistent with TCDn_ATTR DSIZE 3 NCE NBYTES CITER Configuration Error 0 No NBYTES CITER configuration error 1 The last recorde...

Страница 388: ...19 18 17 16 R 0 W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R ERQ15 ERQ14 ERQ13 ERQ12 ERQ11 ERQ10 ERQ9 ERQ8 ERQ7 ERQ6 ERQ5 ERQ4 ERQ3 ERQ2 ERQ1 ERQ0 W Reset 0 0 0...

Страница 389: ...est signal for the corresponding channel is enabled 6 ERQ6 Enable DMA Request 6 0 The DMA request signal for the corresponding channel is disabled 1 The DMA request signal for the corresponding channe...

Страница 390: ...flag must be asserted before an error interrupt request for a given channel is asserted to the interrupt controller Address 4000_8000h base 14h offset 4000_8014h Bit 31 30 29 28 27 26 25 24 23 22 21...

Страница 391: ...or interrupt request 8 EEI8 Enable Error Interrupt 8 0 The error signal for corresponding channel does not generate an error interrupt 1 The assertion of the error signal for corresponding channel gen...

Страница 392: ...able the error interrupt for a given channel The data value on a register write causes the corresponding bit in the EEI to be cleared Setting the CAEE bit provides a global clear function forcing the...

Страница 393: ...a 32 bit word Reads of this register return all zeroes Address 4000_8000h base 19h offset 4000_8019h Bit 7 6 5 4 3 2 1 0 Read 0 0 0 Write NOP SAEE 0 SEEI Reset 0 0 0 0 0 0 0 0 DMA_SEEI field descript...

Страница 394: ...ite multiple byte registers as a 32 bit word Reads of this register return all zeroes Address 4000_8000h base 1Ah offset 4000_801Ah Bit 7 6 5 4 3 2 1 0 Read 0 0 0 Write NOP CAER 0 CERQ Reset 0 0 0 0 0...

Страница 395: ...s as a 32 bit word Reads of this register return all zeroes Address 4000_8000h base 1Bh offset 4000_801Bh Bit 7 6 5 4 3 2 1 0 Read 0 0 0 Write NOP SAER 0 SERQ Reset 0 0 0 0 0 0 0 0 DMA_SERQ field desc...

Страница 396: ...s a 32 bit word Reads of this register return all zeroes Address 4000_8000h base 1Ch offset 4000_801Ch Bit 7 6 5 4 3 2 1 0 Read 0 0 0 Write NOP CADN 0 CDNE Reset 0 0 0 0 0 0 0 0 DMA_CDNE field descrip...

Страница 397: ...this register return all zeroes Address 4000_8000h base 1Dh offset 4000_801Dh Bit 7 6 5 4 3 2 1 0 Read 0 0 0 Write NOP SAST 0 SSRT Reset 0 0 0 0 0 0 0 0 DMA_SSRT field descriptions Field Description...

Страница 398: ...te multiple byte registers as a 32 bit word Reads of this register return all zeroes Address 4000_8000h base 1Eh offset 4000_801Eh Bit 7 6 5 4 3 2 1 0 Read 0 0 0 Write NOP CAEI 0 CERR Reset 0 0 0 0 0...

Страница 399: ...ite multiple byte registers as a 32 bit word Reads of this register return all zeroes Address 4000_8000h base 1Fh offset 4000_801Fh Bit 7 6 5 4 3 2 1 0 Read 0 0 0 Write NOP CAIR 0 CINT Reset 0 0 0 0 0...

Страница 400: ...INT a 1 in any bit position clears the corresponding channel s interrupt request A zero in any bit position has no affect on the corresponding channel s current interrupt status The CINT register is p...

Страница 401: ...e interrupt request for corresponding channel is active 9 INT9 Interrupt Request 9 0 The interrupt request for corresponding channel is cleared 1 The interrupt request for corresponding channel is act...

Страница 402: ...routed to the interrupt controller During the execution of the interrupt service routine associated with any DMA errors it is software s responsibility to clear the appropriate bit negating the error...

Страница 403: ...not occurred 1 An error in this channel has occurred 14 ERR14 Error In Channel 14 0 An error in this channel has not occurred 1 An error in this channel has occurred 13 ERR13 Error In Channel 13 0 An...

Страница 404: ...n this channel has not occurred 1 An error in this channel has occurred 4 ERR4 Error In Channel 4 0 An error in this channel has not occurred 1 An error in this channel has occurred 3 ERR3 Error In Ch...

Страница 405: ...this status is affected by the ERQ bits Address 4000_8000h base 34h offset 4000_8034h Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R 0 W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 1...

Страница 406: ...ed for the period when a Hardware Request is Present on the Channel After the Request is completed and Channel is free the HRS bit is automatically cleared by hardware 0 A hardware service request for...

Страница 407: ...for channel 6 is not present 1 A hardware service request for channel 6 is present 5 HRS5 Hardware Request Status Channel 5 The HRS bit for its respective channel remains asserted for the period when...

Страница 408: ...respective channel remains asserted for the period when a Hardware Request is Present on the Channel After the Request is completed and Channel is free the HRS bit is automatically cleared by hardware...

Страница 409: ...or channel 10 1 Enable asynchronous DMA request for channel 10 9 EDREQ_9 Enable asynchronous DMA request in stop mode for channel 9 0 Disable asynchronous DMA request for channel 9 1 Enable asynchrono...

Страница 410: ...rbitration is enabled CR ERCA 0 the contents of these registers define the unique priorities associated with each channel The channel priorities are evaluated by numeric value for example 0 is the low...

Страница 411: ...ource Address DMA_TCDn_SADDR Address 4000_8000h base 1000h offset 32d i where i 0d to 15d Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R SADDR W Reset x x...

Страница 412: ...circular data queue easily For data queues requiring power of 2 size bytes the queue should start at a 0 modulo size address and the SMOD field should be set to the appropriate value for the queue fre...

Страница 413: ...x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Notes x Undefined at reset DMA_TCDn_NBYTES_MLNO field descriptions Field Description NBYTES Minor Byte Transfer Count Number of bytes to...

Страница 414: ...00_8000h base 1008h offset 32d i where i 0d to 15d Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R SMLOE DMLOE NBYTES W Reset x x x x x x x x x x x x x x x x Bit 15 14 13 12 11 10 9 8 7 6 5 4 3...

Страница 415: ...p Offset Minor Loop and Offset Enabled DMA_TCDn_NBYTES_MLOFFYES One of three registers this register TCD_NBYTES_MLNO or TCD_NBYTES_MLOFFNO defines the number of bytes to transfer per request Which reg...

Страница 416: ...nt has transferred This is an indivisible operation and cannot be halted It can however be stalled by using the bandwidth control field or via preemption After the minor count is exhausted the SADDR a...

Страница 417: ...e destination data 23 3 26 TCD Signed Destination Address Offset DMA_TCDn_DOFF Address 4000_8000h base 1014h offset 32d i where i 0d to 15d Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read DOFF Write Re...

Страница 418: ...NK channel linking NOTE This bit must be equal to the BITER ELINK bit otherwise a configuration error is reported 0 The channel to channel linking is disabled 1 The channel to channel linking is enabl...

Страница 419: ...bles linking to another channel defined by the LINKCH field The link target channel initiates a channel service request via an internal mechanism that sets the TCDn_CSR START bit of the specified chan...

Страница 420: ...x x x x x x x x x Notes x Undefined at reset DMA_TCDn_DLASTSGA field descriptions Field Description DLASTSGA Destination last address adjustment or the memory address for the next transfer control des...

Страница 421: ...ast write of each minor loop This behavior is a side effect of reducing start up latency 00 No eDMA engine stalls 01 Reserved 10 eDMA engine stalls for 4 cycles after each R W 11 eDMA engine stalls fo...

Страница 422: ...ther format The DLASTSGA field provides a memory pointer to the next TCD to be loaded into this channel after the major loop completes its execution 3 DREQ Disable Request If this flag is set the eDMA...

Страница 423: ...y BITER LINKCH The link target channel initiates a channel service request via an internal mechanism that sets the TCDn_CSR START bit of the specified channel If channel linking disables the BITER val...

Страница 424: ...the TCDn_BITER ELINK bit is cleared the TCDn_BITER register is defined as follows Address 4000_8000h base 101Eh offset 32d i where i 0d to 15d Bit 15 14 13 12 11 10 9 8 Read ELINK BITER Write Reset x...

Страница 425: ...qual to the corresponding CITER field otherwise a configuration error is reported As the major iteration count is exhausted the contents of this field is reloaded into the CITER field If the channel i...

Страница 426: ...he control module then into the program model and channel arbitration In the next cycle the channel arbitration performs using the fixed priority or round robin algorithm After arbitration is complete...

Страница 427: ...continues until the minor byte count has transferred After the minor byte count has moved the final phase of the basic data flow is performed In this segment the address path logic performs the requi...

Страница 428: ...tting in the transfer control descriptor or an illegal priority register setting in Fixed Arbitration mode or An error termination to a bus master read or write cycle A configuration error is reported...

Страница 429: ...he scatter gather address DLAST_SGA is not aligned on a 32 byte boundary If minor loop channel linking is enabled upon channel completion a configuration error is reported when the link is attempted i...

Страница 430: ...ansfer in the event the full data transfer is no longer needed The cancel transfer bit does not abort the channel It simply stops the transferring of data and then retires the channel through its norm...

Страница 431: ...lows for a pool of low priority large data moving channels to be defined These low priority channels can be configured to not preempt each other thus preventing a low priority channel from consuming t...

Страница 432: ...ransfers occur at the core s datapath width For all transfers involving the internal peripheral bus 32 bit transfer sizes are used In all cases the transfer rate includes the time to read the source p...

Страница 433: ...write 12 13 This cycle represents the data phase of the last destination write 13 14 The eDMA engine completes the execution of the inner minor loop and prepares to write back the required TCDn field...

Страница 434: ...bus read data phase write_ws Wait states seen during the system bus write data phase exit Channel shutdown 3 cycles 23 4 4 3 eDMA performance example Consider a system with the following characteristi...

Страница 435: ...ing is absorbed in or overlaps the previous executing channel Note When channel linking or scatter gather is enabled a two cycle delay is imposed on the next channel selection and startup This allows...

Страница 436: ...es such as interrupts major loop channel linking and scatter gather operations if enabled Table 23 297 TCD Control and Status fields TCDn_CSR field name Description START Control bit to start channel...

Страница 437: ...added to current address after each transfer often the same value as xSIZE Each DMA source S and destination D has its own Address xADDR Size xSIZE Offset xOFF Modulo xMOD Last Address Adjustment xLAS...

Страница 438: ...iderations for the eDMA 23 5 3 1 Fixed channel arbitration In this mode the channel service request from the highest priority channel is selected to execute 23 5 3 2 Round robin channel arbitration Ch...

Страница 439: ...TCDn_CSR START bit requests channel service 2 The channel is selected by arbitration for servicing 3 eDMA engine writes TCDn_CSR DONE 0 TCDn_CSR START 0 TCDn_CSR ACTIVE 1 4 eDMA engine reads channel...

Страница 440: ...AST 32 TCDn_DLAST_SGA 32 This would generate the following sequence of events 1 First hardware that is eDMA peripheral request for channel service 2 The channel is selected by arbitration for servicin...

Страница 441: ...sfers are executed as follows a Read byte from location 0x1010 read byte from location 0x1011 read byte from 0x1012 read byte from 0x1013 b Write 32 bits to location 0x2010 first iteration of the mino...

Страница 442: ...ircular buffer is created where the address wraps to the original value while the 28 upper address bits 0x1234567x retain their original value In this example the source address is set to 0x12345670 t...

Страница 443: ...model The TCD status bits execute the following sequence for a hardware activated channel Stage TCDn_CSR bits State START ACTIVE DONE 1 0 0 0 Channel service request via hardware peripheral request as...

Страница 444: ...imultaneously in the global TCD map a higher priority channel is actively preempting a lower priority channel 23 5 6 Channel Linking Channel linking or chaining is a mechanism where one channel sets t...

Страница 445: ...e summarizes how a DMA channel can link to another DMA channel i e use another channel s TCD at the end of a loop Table 23 299 Channel Linking Parameters Desired Link Behavior TCD Control Field Name D...

Страница 446: ...uld be set in the programmer s model but it would be unclear whether the actual link was made before the channel retired The following coherency model is recommended when executing a dynamic channel l...

Страница 447: ...e major linkch field and the e_sg bit with a single read For both dynamic channel linking and scatter gather requests the TCD local memory controller forces the TCD major e_link and TCD e_sg bits to z...

Страница 448: ...jor loop channel linking For a channel using major loop channel linking the coherency model described here may be used for a dynamic scatter gather request This method uses the TCD dlast_sga field as...

Страница 449: ...sga changed the dynamic link attempt was successful the new TCD s e_sg value cleared the e_sg bit Chapter 23 Direct Memory Access Controller eDMA KV4x Reference Manual Rev 2 02 2015 Freescale Semicond...

Страница 450: ...Initialization application information KV4x Reference Manual Rev 2 02 2015 450 Preliminary Freescale Semiconductor Inc...

Страница 451: ...the EWM low power modes and the corresponding chip low power modes Table 24 2 EWM low power modes Module mode Chip mode Wait Wait VLPW Stop Stop VLPS 24 1 3 EWM_OUT pin state in low power modes When...

Страница 452: ...the internal watchdog in that it does not reset the MCU s CPU and peripherals The EWM if allowed to time out provides an independent EWM_out pin that when asserted resets or places an external circuit...

Страница 453: ...the following if the EWM enters the stop mode during CPU service mechanism At the exit from stop mode by an interrupt refresh mechanism state machine starts from the previous state which means if firs...

Страница 454: ...s The EWM has two external signals as shown in the following table Table 24 3 EWM Signal Descriptions Signal Description I O EWM_in EWM input for safety status of external safety circuits The polarity...

Страница 455: ...escriptions Field Description 7 4 Reserved This field is reserved This read only field is reserved and always has the value 0 3 INTEN Interrupt Enable This bit when set and EWM_out is asserted an inte...

Страница 456: ...hin a fixed number of peripheral bus cycles of the first data byte This fixed number of cycles is called EWM_service_time 24 4 3 Compare Low Register EWM_CMPL The CMPL register is reset to zero after...

Страница 457: ...unaway code from changing this field software should write to this field after a CPU reset even if the default maximum service time is required 24 5 Functional Description The following sections descr...

Страница 458: ...ster When the EWM_out pin is asserted it can only be deasserted by forcing a MCU reset Note EWM_out pad must be in pull down state when EWM functionality is used and when EWM is under Reset 24 5 2 The...

Страница 459: ...eset occurs The EWM compare registers are used to create a service window which is used by the CPU to service refresh the EWM module If the CPU services the EWM when the counter value lies between CMP...

Страница 460: ...ue reaches CMPH prior to a unique EWM service The counter value reaches the CMPH value and no service of the EWM resets the counter to zero and assert the EWM_out pin irrespective of the EWM_in pin Th...

Страница 461: ...ock Chip clock LPO Oscillator 1 kHz LPO Clock Fast Test Clock Bus Clock System Bus Clock Bus Clock 25 1 2 WDOG low power modes This table shows the WDOG low power modes and the corresponding chip low...

Страница 462: ...endent from CPU bus clock Choice between two clock sources Low power oscillator LPO External system clock Unlock sequence for allowing updates to write once WDOG control configuration bits All WDOG co...

Страница 463: ...fresh outside window leads to reset Robust refresh mechanism Write values of 0xA602 and 0xB480 to WDOG Refresh Register within 20 bus clock cycles Count of WDOG resets as they occur Configurable inter...

Страница 464: ...esh Seq No config after unlocking No unlock after reset 0xB480 0xA602 System Bus Clock 32 bit Modulus Reg Time out Value DebugEN Window_begin WDOGTEST STOPEN WAITEN WDOGT WDOG CLKSRC WINEN WDOGEN WDOG...

Страница 465: ...G_UNLOCK 2 Wait one bus clock cycle You cannot update registers on the bus clock cycle immediately following the write of the unlock sequence 3 An update window equal in length to the watchdog configu...

Страница 466: ...er words you must write at least the first word of the unlocking sequence within the WCT after reset After this is done you have a further 20 bus clock cycles the maximum allowed gap between the words...

Страница 467: ...r This is known as refreshing the watchdog within a window of the total time out period If a refresh is attempted before the timer reaches the window value the watchdog generates a reset or interrupt...

Страница 468: ...resumes its operation from the point of pausing The entry of the system into the debug mode does not excuse it from compulsorily configuring the watchdog in the WCT time after unlock unless the system...

Страница 469: ...it to put the watchdog in the functional test mode Setting this bit automatically switches the watchdog timer to a fast clock source The switching of the clock source is done to achieve a faster time...

Страница 470: ...ronous counter followed by combinational logic that generates an overflow signal The overflow signal acts as an enable to the N 1th stage In the test mode when an individual byte N is tested byte N 1...

Страница 471: ...registers within the WCT window after unlocking At least one of the following registers must be written to within the WCT window to avoid reset WDOG_ST_CTRL_H WDOG_ST_CTRL_L WDOG_TO_VAL_H WDOG_TO_VAL...

Страница 472: ...tchdog Time out Value Register Low WDOG_TOVALL 16 R W 4B4Ch 25 8 4 475 4005_2008 Watchdog Window Register High WDOG_WINH 16 R W 0000h 25 8 5 476 4005_200A Watchdog Window Register Low WDOG_WINL 16 R W...

Страница 473: ...dog in the functional test mode In this mode the watchdog timer and the associated compare and reset generation logic is tested for correct operation The clock for the timer is switched from the main...

Страница 474: ...of this bit must be held for more than one WDOG_CLK cycle for the WDOG to be enabled or disabled 0 WDOG is disabled 1 WDOG is enabled 25 8 2 Watchdog Status and Control Register Low WDOG_STCTRLL Addr...

Страница 475: ..._TOVALL The time out value of the watchdog must be set to a minimum of four watchdog clock cycles This is to take into account the delay in new settings taking effect in the watchdog clock domain Addr...

Страница 476: ...terrupts and then resets the system 25 8 6 Watchdog Window Register Low WDOG_WINL NOTE You must set the Window Register value lower than the Time out Value Register Address 4005_2000h base Ah offset 4...

Страница 477: ...descriptions Field Description WDOGUNLOCK Writing the unlock sequence values to this register to makes the watchdog write once registers writable again The required unlock sequence is 0xC520 followed...

Страница 478: ...watchdog timer 25 8 11 Watchdog Reset Count register WDOG_RSTCNT Address 4005_2000h base 14h offset 4005_2014h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read RSTCNT Write Reset 0 0 0 0 0 0 0 0 0 0 0 0...

Страница 479: ...unlock registers For an 8 bit access to these registers writing a correct value requires at least two bus clock cycles resulting in an invalid value in the registers for one cycle Therefore the system...

Страница 480: ...ite2 and write4 It is reiterated that the condition for matching values 1 and 2 of the refresh or unlock sequence remains unchanged The difference for 8 bit accesses is that the criterion for detectin...

Страница 481: ...effect in the watchdog clock domain You must take care not only to refresh the watchdog within the watchdog timer s actual time out period but also provide enough allowance for the time it takes for t...

Страница 482: ...due to synchronization The same holds true for an exit from the stop mode this time resulting in a two to three watchdog clock cycle delay in the timer restarting In case the duration of the stop mode...

Страница 483: ...XB_IN5 XBARA_IN6 XB_IN6 XBARA_IN7 XB_IN7 XBARA_IN8 XB_IN8 XBARA_IN9 XB_IN9 XBARA_IN10 XB_IN10 XBARA_IN11 XB_IN11 XBARA_IN12 CMP0_OUT XBARA_IN13 CMP1_OUT XBARA_IN14 CMP2_OUT XBARA_IN15 CMP3_OUT XBARA_I...

Страница 484: ...1 DMA ch7_done1 XBARA_IN42 PIT ch0 XBARA_IN43 PIT ch1 XBARA_IN44 XBARA_IN45 ENC_CMP POS_MATCH XBARA_IN46 AND_OR_INVERT_0 XBARA_IN47 AND_OR_INVERT_1 XBARA_IN48 AND_OR_INVERT_2 XBARA_IN49 AND_OR_INVERT_...

Страница 485: ..._OUT19 CMP3 window sample input XBARA_OUT20 PWMA0_EXTA XBARA_OUT21 PWMA1_EXTA XBARA_OUT22 PWMA2_EXTA XBARA_OUT23 PWMA3_EXTA XBARA_OUT24 PWMA0_EXT_SYNC XBARA_OUT25 PWMA1_EXT_SYNC XBARA_OUT26 PWMA2_EXT_...

Страница 486: ...ent select field The intended application of this module is to provide a flexible crossbar switch function that allows any input typically from external GPIO or internal module outputs to be connected...

Страница 487: ...PBus interface for select and control fields Register write protection input signal 26 2 3 Modes of Operation The XBAR module design operates in only a single mode of operation Functional Mode The var...

Страница 488: ..._REQ 0 DMA_REQ 1 INT_REQ 1 DMA_REQ M 1 INT_REQ M 1 edge status edge selection and interrupt DMA generation controls Figure 26 1 XBAR Block Diagram 26 3 Signal Descriptions The following table summariz...

Страница 489: ...ut s DMA_REQ n is a DMA request to the DMA controller 26 3 4 DMA_ACK n DMA Acknowledge Input s DMA_ACK n is a DMA acknowledge input from the DMA controller 26 3 5 INT_REQ n Interrupt Request Output s...

Страница 490: ...10 XBARA_SEL10 16 R W 0000h 26 4 11 496 4005_9016 Crossbar A Select Register 11 XBARA_SEL11 16 R W 0000h 26 4 12 496 4005_9018 Crossbar A Select Register 12 XBARA_SEL12 16 R W 0000h 26 4 13 497 4005_9...

Страница 491: ...to XBARA_OUT1 refer to Functional Description section for input output assignment 7 6 Reserved This field is reserved This read only field is reserved and always has the value 0 SEL0 Input XBARA_INn t...

Страница 492: ...nment 7 6 Reserved This field is reserved This read only field is reserved and always has the value 0 SEL4 Input XBARA_INn to be muxed to XBARA_OUT4 refer to Functional Description section for input o...

Страница 493: ...0 SEL8 Input XBARA_INn to be muxed to XBARA_OUT8 refer to Functional Description section for input output assignment 26 4 6 Crossbar A Select Register 5 XBARA_SEL5 Address 4005_9000h base Ah offset 4...

Страница 494: ...ption section for input output assignment 26 4 8 Crossbar A Select Register 7 XBARA_SEL7 Address 4005_9000h base Eh offset 4005_900Eh Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL15 0 SEL14 Wri...

Страница 495: ...ction for input output assignment 26 4 10 Crossbar A Select Register 9 XBARA_SEL9 Address 4005_9000h base 12h offset 4005_9012h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL19 0 SEL18 Write Res...

Страница 496: ...ption section for input output assignment 26 4 12 Crossbar A Select Register 11 XBARA_SEL11 Address 4005_9000h base 16h offset 4005_9016h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL23 0 SEL22...

Страница 497: ...ction for input output assignment 26 4 14 Crossbar A Select Register 13 XBARA_SEL13 Address 4005_9000h base 1Ah offset 4005_901Ah Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL27 0 SEL26 Write R...

Страница 498: ...ption section for input output assignment 26 4 16 Crossbar A Select Register 15 XBARA_SEL15 Address 4005_9000h base 1Eh offset 4005_901Eh Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL31 0 SEL30...

Страница 499: ...ction for input output assignment 26 4 18 Crossbar A Select Register 17 XBARA_SEL17 Address 4005_9000h base 22h offset 4005_9022h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL35 0 SEL34 Write R...

Страница 500: ...ption section for input output assignment 26 4 20 Crossbar A Select Register 19 XBARA_SEL19 Address 4005_9000h base 26h offset 4005_9026h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL39 0 SEL38...

Страница 501: ...ction for input output assignment 26 4 22 Crossbar A Select Register 21 XBARA_SEL21 Address 4005_9000h base 2Ah offset 4005_902Ah Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL43 0 SEL42 Write R...

Страница 502: ...ption section for input output assignment 26 4 24 Crossbar A Select Register 23 XBARA_SEL23 Address 4005_9000h base 2Eh offset 4005_902Eh Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL47 0 SEL46...

Страница 503: ...ction for input output assignment 26 4 26 Crossbar A Select Register 25 XBARA_SEL25 Address 4005_9000h base 32h offset 4005_9032h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL51 0 SEL50 Write R...

Страница 504: ...ption section for input output assignment 26 4 28 Crossbar A Select Register 27 XBARA_SEL27 Address 4005_9000h base 36h offset 4005_9036h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 SEL55 0 SEL54...

Страница 505: ...Description section for input output assignment 26 4 30 Crossbar A Select Register 29 XBARA_SEL29 Address 4005_9000h base 3Ah offset 4005_903Ah Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 0 0 SE...

Страница 506: ...This bit reflects the results of edge detection for XBAR_OUT1 This field is set to 1 when an edge consistent with the current setting of EDGE1 is detected on XBAR_OUT1 This field is cleared by writing...

Страница 507: ...no effect When interrupt or DMA functionality is enabled for XBAR_OUT0 this field is 1 when the interrupt or DMA request is asserted and 0 when the interrupt or DMA request has been cleared 0 Active e...

Страница 508: ...2 IEN2 DEN2 Write w1c Reset 0 0 0 0 0 0 0 0 XBARA_CTRL1 field descriptions Field Description 15 13 Reserved This field is reserved This read only field is reserved and always has the value 0 12 STS3 E...

Страница 509: ...sabled 1 DMA enabled 7 5 Reserved This field is reserved This read only field is reserved and always has the value 0 4 STS2 Edge detection status for XBAR_OUT2 This bit reflects the results of edge de...

Страница 510: ...Ln The SELn select values are configured in the XBAR_SEL registers All muxes share the same inputs in the same order A subset of XBAR_OUT outputs has dedicated control fields in a Crossbar Control XBA...

Страница 511: ...lue of STSn Thus the DMA request asserts when the edge specified by EDGEn is detected on XBAR_OUT n Also a rising edge on DMA_ACK n sets STSn to zero and thus clears the DMA request When DEN is 0 DMA_...

Страница 512: ...Interrupts and DMA Requests KV4x Reference Manual Rev 2 02 2015 512 Preliminary Freescale Semiconductor Inc...

Страница 513: ...M3_CH_allTRIG XBARB_IN7 FTM3_INIT XBARB_IN8 PWMA0_TRG0 PWMA0_TRIG1 XBARB_IN9 PWMA1_TRG0 PWMA1_TRG1 XBARB_IN10 PWMA2_TRG0 PWMA2_TRG1 XBARB_IN11 PWMA3_TRG0 PWMA3_TRG1 XBARB_IN12 PDB0_OUT XBARB_IN13 ADCA...

Страница 514: ...0 XBARB_OUT1 AOI_IN1 XBARB_OUT2 AOI_IN2 XBARB_OUT3 AOI_IN3 XBARB_OUT4 AOI_IN4 XBARB_OUT5 AOI_IN5 XBARB_OUT6 AOI_IN6 XBARB_OUT7 AOI_IN7 XBARB_OUT8 AOI_IN8 XBARB_OUT9 AOI_IN9 XBARB_OUT10 AOI_IN10 XBARB_...

Страница 515: ...Chip Configuration details XBARB memory map Absolute address hex Register name Width in bits Access Reset value Section page 4005_A000 Crossbar B Select Register 0 XBARB_SEL0 16 R W 0000h 27 3 1 515...

Страница 516: ...15 13 Reserved This field is reserved This read only field is reserved and always has the value 0 12 8 SEL3 Input XBARB_INn to be muxed to XBARB_OUT3 refer to Functional Description section for input...

Страница 517: ...ut XBARB_INn to be muxed to XBARB_OUT7 refer to Functional Description section for input output assignment 7 5 Reserved This field is reserved This read only field is reserved and always has the value...

Страница 518: ...ment 7 5 Reserved This field is reserved This read only field is reserved and always has the value 0 SEL10 Input XBARB_INn to be muxed to XBARB_OUT10 refer to Functional Description section for input...

Страница 519: ...scriptions Field Description 15 13 Reserved This field is reserved This read only field is reserved and always has the value 0 12 8 SEL15 Input XBARB_INn to be muxed to XBARB_OUT15 refer to Functional...

Страница 520: ...Memory Map and Register Descriptions KV4x Reference Manual Rev 2 02 2015 520 Preliminary Freescale Semiconductor Inc...

Страница 521: ...utput Assigned Input AOI_IN0 XBARB_OUT0 AOI_IN1 XBARB_OUT1 AOI_IN2 XBARB_OUT2 AND_OR_INVERT_0 XBARA_IN46 AOI_IN3 XBARB_OUT3 AOI_IN4 XBARB_OUT4 AOI_IN5 XBARB_OUT5 AND_OR_INVERT_1 XBARA_IN47 AOI_IN6 XBA...

Страница 522: ...cators from a variety of device modules and generating event output signals that can be routed to an inter peripheral crossbar switch or other peripherals Its programming model is accessed through the...

Страница 523: ...put D Event PT0_AC PT1_AC PT2_AC PT3_AC PT0_BC PT0_CC PT0_DC PT1_BC PT1_CC PT1_DC PT2_BC PT2_CC PT2_DC PT3_BC PT3_CC PT3_DC Figure 28 1 Simplified AOI Block Diagram Chapter 28 Crossbar AND OR INVERT A...

Страница 524: ...d by the selected event inputs and outputs Additionally as a memory mapped device located on the slave peripheral bus it responds based strictly on memory address for accesses to its programming model...

Страница 525: ...uct termuses 8 bits of configuration information 2 bits for each of the four selected event inputs The resulting logic provides a simple yet powerful Boolean function evaluation for defining an event...

Страница 526: ...duct term 11 Force the B input in this product term to a logical one 11 10 PT0_CC Product term 0 C input configuration This 2 bit field defines the Boolean evaluation associated with the selected inpu...

Страница 527: ...fines the Boolean evaluation associated with the selected input D in product term 1 00 Force the D input in this product term to a logical zero 01 Pass the D input in this product term 10 Complement t...

Страница 528: ...ct term 3 A input configuration This 2 bit field defines the Boolean evaluation associated with the selected input A in product term 3 00 Force the A input in this product term to a logical zero 01 Pa...

Страница 529: ...A typical application of the AOI module is to be integrated with one or more inter peripheral crossbar switch modules as illustrated in the following figure The 20 external inputs are shared by two cr...

Страница 530: ...model configuration for simple boolean expressions The AOI module provides a universal boolean function generator using a four term sum of products expression with each product term containing true o...

Страница 531: ...t term 3 PT3_BC 0 B PT3_BC 1 B PT3_CC 0 C PT3_CC 1 C PT3_DC 0 D PT3_DC 1 D where the bits of the combined BFECRT01n BFCRT23n registers correspond to the PT 0 3 _ A B C D C 1 0 terms in the equation Co...

Страница 532: ...nation function of its four dedicated inputs An Bn Cn and Dn Propagation through the AOI and any associated inter peripheral crossbar switch modules is intended to be single bus clock cycle Functional...

Страница 533: ...atic Gain Control AGC to optimize power consumption in high frequency ranges 3 8 MHz 8 32 MHz using low power mode High gain option in frequency ranges 32 kHz 3 8 MHz and 8 32 MHz Voltage and frequenc...

Страница 534: ...he external reference clock source in this MCU The figure found here shows the block diagram of the OSC module XTAL EXTAL XTL_CLK Mux 4096 Counter OSC Clock Enable STOP OSCERCLK_UNDIV ERCLKEN OSCCLK R...

Страница 535: ...able shows all possible connections Table 29 2 External Caystal Resonator Connections Oscillator Mode Connections Low frequency 32 kHz low power Connection 11 Low frequency 32 kHz high gain Connection...

Страница 536: ...P bits OSC VSS Cx Cy RF Crystal or Resonator XTAL EXTAL Figure 29 4 Crystal Ceramic Resonator Connections Connection 3 29 6 External Clock Connections In external clock mode the pins can be connected...

Страница 537: ...age 4006_5000 OSC Control Register OSC_CR 8 R W 00h 29 7 1 1 537 4006_5002 OSC_DIV OSC_OSC_DIV 8 R W 00h 29 7 1 2 539 29 7 1 1 OSC Control Register OSC_CR NOTE After OSC is enabled and starts generati...

Страница 538: ...erved This field is reserved This read only field is reserved and always has the value 0 3 SC2P Oscillator 2 pF Capacitor Load Configure Configures the oscillator load 0 Disable the selection 1 Add 2...

Страница 539: ...This read only field is reserved and always has the value 0 3 Reserved This field is reserved This read only field is reserved and always has the value 0 2 Reserved This field is reserved This read on...

Страница 540: ...ts 29 8 1 1 Off The OSC enters the Off state when the system does not require OSC clocks Upon entering this state XTL_CLK is static unless OSC is configured to select the clock from the EXTAL pad by c...

Страница 541: ...CLK_OUT Its frequency is determined by the external components being used 29 8 1 4 External Clock mode The OSC enters external clock state when it is enabled and external reference clock selection bit...

Страница 542: ...l capacitors could be used 29 8 2 2 Low Frequency Low Power Mode In low frequency low power mode the oscillator uses a gain control loop to minimize power consumption As the oscillation amplitude incr...

Страница 543: ...age filtering and converts the output to logic levels 29 8 3 Counter The oscillator output clock OSC_CLK_OUT is gated off until the counter has detected 4096 cycles of its input clock XTL_CLK After 40...

Страница 544: ...hese bits are set the OSC is in operation After waking up from Very Low Leakage Stop VLLSx modes all OSC register bits are reset and initialization is required through software 29 11 Interrupts The OS...

Страница 545: ...an external crystal ceramic resonator or another external clock source to produce the external reference clock 30 1 1 Features Key features of the MCG module are Frequency locked loop FLL Digitally co...

Страница 546: ...eference low power oscillator clock generators are provided HGO RANGE EREFS External clock from the Crystal Oscillator Can be used as a source for the FLL and or the PLL Can be selected as the clock s...

Страница 547: ...ipherals MCG Internal Reference Clock MCGIRCLK is provided as a clock source for other on chip peripherals This figure presents the block diagram of the MCG module Chapter 30 Multipurpose Clock Genera...

Страница 548: ...V0 LOLIE0 Sync Auto Trim Machine IRCST PLLST CLKST ATMS SCTRIM SCFTRIM FCTRIM ATMST IREFSTEN OSCINIT0 EREFS0 HGO0 RANGE0 External DRS Clock Valid Peripheral BUSCLK PLLCLKEN0 IRCSCLK IRCS CLKS CLKS DCO...

Страница 549: ...1 Register MCG_C1 8 R W 04h 30 3 1 550 4006_4001 MCG Control 2 Register MCG_C2 8 R W 80h 30 3 2 551 4006_4002 MCG Control 3 Register MCG_C3 8 R W Undefined 30 3 3 552 4006_4003 MCG Control 4 Register...

Страница 550: ...E 0 Divide Factor is 4 for all other RANGE values Divide Factor is 128 011 If RANGE 0 Divide Factor is 8 for all other RANGE values Divide Factor is 256 100 If RANGE 0 Divide Factor is 16 for all othe...

Страница 551: ...illator OSC chapter for more details and the device data sheet for the frequency ranges used 00 Encoding 0 Low frequency range selected for the crystal oscillator 01 Encoding 1 High frequency range se...

Страница 552: ...eference clock frequency by controlling the slow internal reference clock period The SCTRIM bits are binary weighted that is bit 1 adjusts twice as much as bit 0 Increasing the binary value increases...

Страница 553: ...0 25 MHz 1 32 768 kHz 732 24 MHz 01 0 31 25 39 0625 kHz 1280 40 50 MHz 1 32 768 kHz 1464 48 MHz 10 0 31 25 39 0625 kHz 1920 60 75 MHz 1 32 768 kHz 2197 72 MHz 11 0 31 25 39 0625 kHz 2560 80 100 MHz 1...

Страница 554: ...le memory location to this bit 1 A value for FCTRIM is loaded during reset from a factory programmed location 2 A value for SCFTRIM is loaded during reset from a factory programmed location 30 3 5 MCG...

Страница 555: ...PLL0 The resulting frequency must be in the range of 8 MHz to 16 MHz After the PLL0 is enabled by setting either PLLCLKEN0 or PLLS the PRDIV0 value must not be changed when LOCK0 is zero Table 30 7 PL...

Страница 556: ...value of the RANGE0 bits in the C2 register should not be changed CME0 bit should be set to a logic 0 before the MCG enters any Stop mode Otherwise a reset request may occur while in Stop mode CME0 s...

Страница 557: ...in the C5 register or the VDIV 4 0 bits in the C6 register causes the lock status bit to clear and stay cleared until the PLL has reacquired lock Loss of PLL reference clock will also cause the LOCK...

Страница 558: ...to internal synchronization between clock domains The IRCST bit will only be updated if the internal reference clock is enabled either by the MCG being in a mode that uses the IRC or by setting the C...

Страница 559: ...o the new clock mode switch Otherwise FLL filter and frequency values will change 0 FLL filter and FLL frequency will reset on changes to currect clock mode 1 Fll filter and FLL frequency retain their...

Страница 560: ...Value Low Register MCG_ATCVL Address 4006_4000h base Bh offset 4006_400Bh Bit 7 6 5 4 3 2 1 0 Read ATCVL Write Reset 0 0 0 0 0 0 0 0 MCG_ATCVL field descriptions Field Description ATCVL ATM Compare Va...

Страница 561: ...n a PLL loss of lock indication 5 Reserved This field is reserved This read only field is reserved and always has the value 0 4 1 Reserved This field is reserved This read only field is reserved and a...

Страница 562: ...PBE clock mode and the C1 CLKS and S CLKST will automatically be set to 2 b10 If entering Normal Stop mode when the MCG is in PEE mode with PLLSTEN 0 the MCG will reset to PBE clock mode and C1 CLKS a...

Страница 563: ...tion for more details In FEE mode the PLL is disabled in a low power state unless C5 PLLCLKEN is set FLL Bypassed Internal FBI FLL bypassed internal FBI mode is entered when all the following conditio...

Страница 564: ...when all the following conditions occur 10 is written to C1 CLKS 0 is written to C1 IREFS 1 is written to C6 PLLS 0 is written to C2 LP In PBE mode MCGOUTCLK is derived from the external reference clo...

Страница 565: ...to 2 b10 and S LOCK bit will clear without setting S LOLS If C5 PLLSTEN 1 the S LOCK bit will not get cleared and on exit the MCG will continue to run in PEE mode 1 Caution If entering VLPR mode MCG...

Страница 566: ...ce Clock MCGIRCLK provides a clock source for other on chip peripherals and is enabled when C1 IRCLKEN 1 When enabled MCGIRCLK is driven by either the fast internal reference clock 4 MHz IRC which can...

Страница 567: ...he PLL LOCK status bit is cleared 30 4 5 MCG Fixed Frequency Clock The MCG Fixed Frequency Clock MCGFFCLK provides a fixed frequency clock source for other on chip peripherals see the block diagram Th...

Страница 568: ...reference clock such as FBE clock mode The MCG must not be configured in a clock mode where selected IRC ATM clock is used to generate the system clock The bus clock is also required to be running wit...

Страница 569: ...lock in tfll_acquire milliseconds 30 5 1 1 Initializing the MCG Because the MCG comes out of reset in FEI mode the only MCG modes that can be directly switched to upon reset are FEE FBE and FBI modes...

Страница 570: ...zed If in FEE mode check to make sure S IREFST is cleared before moving on If in FBE mode check to make sure S IREFST is cleared and S CLKST bits have changed to 2 b10 indicating the external referenc...

Страница 571: ...z 5 Wait for the FLL lock time to guarantee FLL is running at new C4 DRST_DRS and C4 DMX32 programmed frequency To change from FEI clock mode to FBI clock mode follow this procedure 1 Change C1 CLKS b...

Страница 572: ...NIT must be checked before moving on in the application software Additionally care must be taken to ensure that the reference clock divider C1 FRDIV and C5 PRDIV0 is set properly for the mode being sw...

Страница 573: ...clock source less than 8 MHz the MCG must not be configured for any of the PLL modes PEE and PBE 30 5 3 1 Example 1 Moving from FEI to PEE Mode with OSC0 as the source for the external crystal clock...

Страница 574: ...a BLPE If a transition through BLPE mode is desired first set C2 LP to 1 b BLPE PBE C6 0x4E C6 PLLS set to 1 selects the PLL At this time with a C1 PRDIV value of 2 b001 the PLL reference divider is...

Страница 575: ...C1 0x20 C1 CLKS set to 2 b00 to select the output of the PLL as the system clock source b Loop until S CLKST are 2 b11 indicating that the PLL output is selected to feed MCGOUTCLK in the current clock...

Страница 576: ...MODE C2 0x2E C2 LP 1 CHECK CHECK C1 0x20 CHECK CONTINUE IN PEE MODE S PLLST 1 S LOCK0 1 S CLKST 10 S CLKST 11 S LP 1 S IREFST 0 S OSCINIT0 1 C5 0x01 C5 VDIV0 1 Figure 30 14 Flowchart of FEI to PEE mod...

Страница 577: ...ed first set C2 LP to 1 b BLPE FBE C6 0x00 C6 PLLS clear to 0 to select the FLL At this time with C1 FRDIV value of 3 b100 the FLL divider is set to 512 resulting in a reference frequency of 16 MHz 51...

Страница 578: ...ed as the reference clock source c Loop until S CLKST are 2 b01 indicating that the internal reference clock is selected to feed MCGOUTCLK 4 Lastly FBI transitions into BLPI mode a C2 0x22 C2 LP is 1...

Страница 579: ...FST 0 CHECK S CLKST 01 YES NO YES C2 LP 1 C6 0x00 IN BLPE MODE IN BLPE MODE NO YES C2 0x2C C2 LP 0 C2 0x2E ENTER BLPE MODE C2 LP 1 Figure 30 15 Flowchart of PEE to BLPI mode transition using an 16 MHz...

Страница 580: ...Initialization Application information KV4x Reference Manual Rev 2 02 2015 580 Preliminary Freescale Semiconductor Inc...

Страница 581: ...ns Flash memory type Read Write Program flash memory 8 bit 16 bit and 32 bit reads 1 1 A write operation to program flash memory results in a bus error In addition for bank 0 the FMC provides three se...

Страница 582: ...ck per way Single entry buffer Invalidation control for the speculation buffer and the single entry buffer 31 2 Modes of operation The FMC only operates when a bus master accesses the flash memory For...

Страница 583: ...ge is accessed The cache is a 4 way set associative cache with 2 sets The ways are numbered 0 3 and the sets are numbered 0 1 The following table elaborates on the tag valid and data entries Table 31...

Страница 584: ...0000_0000h 31 4 10 596 4001_F20C Cache Data Storage lowermost word FMC_DATAW0S0LM 32 R W 0000_0000h 31 4 11 596 4001_F210 Cache Data Storage uppermost word FMC_DATAW0S1UM 32 R W 0000_0000h 31 4 8 595...

Страница 585: ...600 4001_F25C Cache Data Storage lowermost word FMC_DATAW2S1LM 32 R W 0000_0000h 31 4 19 600 4001_F260 Cache Data Storage uppermost word FMC_DATAW3S0UM 32 R W 0000_0000h 31 4 20 601 4001_F264 Cache D...

Страница 586: ...occur 19 Reserved This field is reserved 18 M2PFD Master 2 Prefetch Disable These bits control whether prefetching is enabled based on the logical number of the requesting crossbar switch master This...

Страница 587: ...by this master 10 Only write accesses may be performed by this master 11 Both read and write accesses may be performed by this master 3 2 M1AP 1 0 Master 1 Access Protection This field controls whethe...

Страница 588: ...s time of the flash array expressed in system clock cycles and RWSC is defined as Access time of flash array system clocks RWSC 1 The FMC automatically calculates this value based on the ratio of the...

Страница 589: ...uffer and single entry buffer are immediately cleared This bit always reads as zero 0 Speculation buffer and single entry buffer are not affected 1 Invalidate clear speculation buffer and single entry...

Страница 590: ...s whether the single entry page buffer is enabled in response to flash read accesses A high to low transition of this enable forces the page buffer to be invalidated 0 Single entry buffer is disabled...

Страница 591: ...0 1 In TAGVDWxSy x denotes the way and y denotes the set This section represents tag vld information for all sets n 0 1 in way 0 Address 4001_F000h base 100h offset 4d i where i 0d to 1d Bit 31 30 29...

Страница 592: ...R 0 cache_tag W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R cache_tag 0 valid W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 FMC_TAGVDW1Sn field descriptions Field Desc...

Страница 593: ...R 0 cache_tag W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R cache_tag 0 valid W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 FMC_TAGVDW2Sn field descriptions Field Descr...

Страница 594: ...R 0 cache_tag W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R cache_tag 0 valid W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 FMC_TAGVDW3Sn field descriptions Field Desc...

Страница 595: ...tion data 127 96 Bits 127 96 of data entry 31 4 9 Cache Data Storage mid upper word FMC_DATAW0SnMU The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are number...

Страница 596: ...ription data 63 32 Bits 63 32 of data entry 31 4 11 Cache Data Storage lowermost word FMC_DATAW0SnLM The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are numb...

Страница 597: ...tion data 127 96 Bits 127 96 of data entry 31 4 13 Cache Data Storage mid upper word FMC_DATAW1SnMU The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are numbe...

Страница 598: ...ription data 63 32 Bits 63 32 of data entry 31 4 15 Cache Data Storage lowermost word FMC_DATAW1SnLM The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are numb...

Страница 599: ...tion data 127 96 Bits 127 96 of data entry 31 4 17 Cache Data Storage mid upper word FMC_DATAW2SnMU The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are numbe...

Страница 600: ...ription data 63 32 Bits 63 32 of data entry 31 4 19 Cache Data Storage lowermost word FMC_DATAW2SnLM The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are numb...

Страница 601: ...tion data 127 96 Bits 127 96 of data entry 31 4 21 Cache Data Storage mid upper word FMC_DATAW3SnMU The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are numbe...

Страница 602: ...iption data 63 32 Bits 63 32 of data entry 31 4 23 Cache Data Storage lowermost word FMC_DATAW3SnLM The cache of sixteen 128 bit entries is a 4 way set associative cache with 2 sets The ways are numbe...

Страница 603: ...lacement The single entry buffer is enabled 31 5 2 Configuration options Though the default configuration provides a high degree of flash acceleration advanced users may desire to customize the FMC bu...

Страница 604: ...de and or data For example consider the following scenario Assume a system with a 4 1 core to flash clock ratio and with speculative reads enabled The core requests eight sequential longwords in back...

Страница 605: ...ecause the Flash Memory module manages them directly As a result if an application is executing flash memory commands the FMC s cache might need to be disabled and or flushed to prevent the possibilit...

Страница 606: ...Initialization and application information KV4x Reference Manual Rev 2 02 2015 606 Preliminary Freescale Semiconductor Inc...

Страница 607: ...y the erase operation restores bits from 0 to 1 bits cannot be programmed from a 0 to a 1 CAUTION A flash memory location must be in the erased state before being programmed Cumulative programming of...

Страница 608: ...orized access to selected code segments Automated built in program and erase algorithms with verify 32 1 1 2 Other Flash Memory Module Features Internal high voltage supply generator for flash memory...

Страница 609: ...ry controller in the flash memory module Flash block A macro within the flash memory module which provides the nonvolatile memory storage Flash Memory Module All flash blocks plus a flash management u...

Страница 610: ...d from the last erase operation not from the programming time RWW Read While Write The ability to simultaneously read from one memory resource while commanded operations are active in another memory r...

Страница 611: ...1 Flash security byte Refer to the description of the Flash Security Register FSEC 32 3 2 Program Flash IFR Map The program flash IFR is nonvolatile information memory that can be read freely but the...

Страница 612: ...e Field can be read any number of times This section of the program flash IFR is accessed in 4 byte or 8 Byte records using the Read Once and Program Once commands see Read Once Command and Program On...

Страница 613: ...Registers FTFA_FCCOB5 8 R W 00h 32 3 3 5 619 4002_000B Flash Common Command Object Registers FTFA_FCCOB4 8 R W 00h 32 3 3 5 619 4002_000C Flash Common Command Object Registers FTFA_FCCOBB 8 R W 00h 3...

Страница 614: ...only Access Registers FTFA_SACCH0 8 R Undefined 32 3 3 8 623 4002_0024 Supervisor only Access Registers FTFA_SACCL3 8 R Undefined 32 3 3 8 623 4002_0025 Supervisor only Access Registers FTFA_SACCL2 8...

Страница 615: ...s cleared by writing a 1 to it Writing a 0 to RDCOLERR has no effect 0 No collision error detected 1 Collision error detected 5 ACCERR Flash Access Error Flag Indicates an illegal access has occurred...

Страница 616: ...CCIE Command Complete Interrupt Enable Controls interrupt generation when a flash command completes 0 Command complete interrupt disabled 1 Command complete interrupt enabled An interrupt request is...

Страница 617: ...field is reserved and always has the value 0 0 Reserved This field is reserved This read only field is reserved and always has the value 0 32 3 3 3 Flash Security Register FTFA_FSEC This read only reg...

Страница 618: ...state of the FSLACC bits is only relevant when SEC is set to secure When SEC is set to unsecure the FSLACC setting does not matter 00 Freescale factory access granted 01 Freescale factory access deni...

Страница 619: ...OB1 FCCOBB Address 4002_0000h base 4h offset 1d i where i 0d to 11d Bit 7 6 5 4 3 2 1 0 Read CCOBn Write Reset 0 0 0 0 0 0 0 0 FTFA_FCCOBn field descriptions Field Description CCOBn The FCCOB register...

Страница 620: ...ses a big endian addressing convention For all command parameter fields larger than 1 byte the most significant data resides in the lowest FCCOB register number The FCCOB register group may be read an...

Страница 621: ...program flash protection byte Address 4002_0000h base 10h offset 1d i where i 0d to 3d Bit 7 6 5 4 3 2 1 0 Read PROT Write Reset x x x x x x x x Notes x Undefined at reset FTFA_FPROTn field descriptio...

Страница 622: ...ACC registers define which program flash segments are restricted to data read or execute only or both data and instruction fetches The eight XACC registers allow up to 64 restricted segments of equal...

Страница 623: ...sh segments are restricted to supervisor only or user and supervisor access The eight SACC registers allow up to 64 restricted segments of equal memory size Supervisor only access register Program fla...

Страница 624: ...n SA Supervisor only access control 0 Associated segment is accessible in supervisor mode only 1 Associated segment is accessible in user or supervisor mode 32 3 3 9 Flash Access Segment Size Register...

Страница 625: ...ssions All bits in the register are read only The contents of this register are loaded during the reset sequence Address 4002_0000h base 2Bh offset 4002_002Bh Bit 7 6 5 4 3 2 1 0 Read NUMSG Write Rese...

Страница 626: ...lash size 32 Program flash size 32 Program flash size 32 Program flash size 32 Program flash size 32 Program flash size 32 Program flash size 32 FPROT3 PROT0 0x0_0000 FPROT3 PROT1 FPROT3 PROT2 FPROT3...

Страница 627: ...gram flash Last program flash address Program flash size 64 XACCL3 XA1 Program flash size 64 XACCL3 XA2 Program flash size 64 XACCL3 XA3 Program flash size 64 XACCL3 XA4 Program flash size 64 XACCL0 X...

Страница 628: ...dule can generate interrupt requests to the MCU upon the occurrence of various flash events These interrupt events and their associated status and control bits are shown in the following table Table 3...

Страница 629: ...s VLPR VLPW VLPS the flash memory module does not accept flash commands 32 4 5 Flash Reads and Ignored Writes The flash memory module requires only the flash address to execute a flash memory read The...

Страница 630: ...mmands available 32 4 8 1 Command Write Sequence Flash commands are specified using a command write sequence illustrated in Figure 32 47 The flash memory module performs various checks on the command...

Страница 631: ...ch are unique to each command If the parameter check fails the FSTAT ACCERR access error flag is set FSTAT ACCERR reports invalid instruction codes and out of bounds addresses Usually access errors su...

Страница 632: ...Parameters Availability Check Results from previous command Read FSTAT register Write 0x30 to FSTAT register no yes no yes Previous command complete no CCIF 1 yes START Figure 32 47 Generic flash com...

Страница 633: ...ose stored in the program flash 32 4 9 Margin Read Commands The Read 1s commands Read 1s All Blocks and Read 1s Section and the Program Check command have a margin choice parameter that allows the use...

Страница 634: ...completion of an erase or program command early in the cycling life Factory margin levels can be used to check that flash memory contents have adequate margin for long term data retention at the norm...

Страница 635: ...first double phrase to be verified 3 Flash address 7 0 1 of the first double phrase to be verified 4 Number of double phrases to be verified 15 8 5 Number of double phrases to be verified 7 0 6 Read...

Страница 636: ...ress 15 8 3 Flash address 7 0 1 4 Margin Choice 8 Byte 0 expected data 9 Byte 1 expected data A Byte 2 expected data B Byte 3 expected data 1 Must be longword aligned Flash address 1 0 00 Upon clearin...

Страница 637: ...controlled segment and the Erase All Blocks or the Read 1s All Blocks command has not successfully completed since the last reset FSTAT FPVIOL Either of the margin reads does not match the expected d...

Страница 638: ...if an invalid resource code is provided or if the address for the applicable area is out of range Table 32 53 Read Resource Command Error Handling Error Condition Error Bit Command not available in cu...

Страница 639: ...The CCIF flag is set after the Program Longword operation completes The supplied address must be longword aligned flash address 1 0 00 Byte 3 data is written to the supplied byte address start Byte 2...

Страница 640: ...s is supplied FSTAT ACCERR Flash address is not double phrase aligned FSTAT ACCERR The selected program flash sector is protected FSTAT FPVIOL The selected program flash sector is located in an XA con...

Страница 641: ...he request to resume the Erase Flash Sector operation CCIF is cleared and the request to suspend the operation again ERSSUSP is set This minimum time period is required to ensure that the Erase Flash...

Страница 642: ...SUSP Execute Yes DONE No ERSSUSP 1 Save Erase Algo Set CCIF No Yes Start New Resume Erase No Abort User Cmd Interrupt Suspend Set SUSPACK 1 ERSSCR Suspended Command Initiation Yes No Yes Yes ERSSCR Co...

Страница 643: ...setting the FSEC SEC field to the unsecure state The security byte in the flash configuration field see Flash Configuration Field Description remains unaffected by the Read 1s All Blocks command If th...

Страница 644: ...byte 3 value 8 Program Once byte 4 value index 0x10 0x13 9 Program Once byte 5 value index 0x10 0x13 10 Program Once byte 6 value index 0x10 0x13 11 Program Once byte 7 value index 0x10 0x13 After cle...

Страница 645: ...ce byte 6 value index 0x10 0x13 11 Program Once byte 7 value index 0x10 0x13 After clearing CCIF to launch the Program Once command the flash memory module first verifies that the selected record is e...

Страница 646: ...ation field see Flash Configuration Field Description are erased by the Erase All Blocks command If the erase verify fails the FSTAT MGSTAT0 bit is set The CCIF flag is set after the Erase All Blocks...

Страница 647: ...SAREQ bit is cleared once the operation completes and the normal FSTAT error reporting is available as described in Erase All Blocks Command 32 4 10 10 Verify Backdoor Access Key Command The Verify Ba...

Страница 648: ...y Backdoor Access Key command fails with an access error The CCIF flag is set after the Verify Backdoor Access Key operation completes Table 32 68 Verify Backdoor Access Key Command Error Handling Err...

Страница 649: ...knowledge of the contents of the 8 byte backdoor key value stored in the Flash Configuration Field see Flash Configuration Field Description If the FSEC KEYEN bits are in the enabled state the Verify...

Страница 650: ...has no effect on the program and erase protections defined in the program flash protection registers If the backdoor keys successfully match the unsecured chip has full control of the contents of the...

Страница 651: ...bit or 32 bit programmable shift register Programmable initial seed value and polynomial Option to transpose input data or output data the CRC result bitwise or bytewise This option is required for c...

Страница 652: ...y CRC calculation in progress stops when the MCU enters a low power mode that disables the module clock It resumes after the clock is enabled or via the system reset for exiting the low power mode Clo...

Страница 653: ...2 1 0 R HU HL LU LL W Reset 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CRC_DATA field descriptions Field Description 31 24 HU CRC High Upper Byte In 16 bit CRC mode CTRL TCRC is 0...

Страница 654: ...nal Half word Writable and readable in 32 bit CRC mode CTRL TCRC is 1 This field is not writable in 16 bit CRC mode CTRL TCRC is 0 LOW Low Polynominal Half word Writable and readable in both 32 bit an...

Страница 655: ...transposed 27 Reserved This field is reserved This read only field is reserved and always has the value 0 26 FXOR Complement Read Of CRC Data Register Some CRC protocols require the final checksum to...

Страница 656: ...o compute a 16 bit CRC 1 Clear CRC_CTRL TCRC to enable 16 bit CRC mode 2 Program the transpose and complement options in the CTRL register as required for the CRC calculation See Transpose feature and...

Страница 657: ...C result complement for details 33 3 3 Transpose feature By default the transpose feature is not enabled However some CRC standards require the input data and or the final checksum to be transposed Th...

Страница 658: ...Transpose type 01 3 CTRL TOT or CTRL TOTR is 10 Both bits in bytes and bytes are transposed reg 31 0 becomes reg 0 7 reg 8 15 reg 16 23 reg 24 31 31 31 0 0 Figure 33 6 Transpose type 10 4 CTRL TOT or...

Страница 659: ...ransposition resides in the CRC HU HL fields The user software must account for this situation when reading the 16 bit CRC result so reading 32 bits is preferred 33 3 4 CRC result complement When CTRL...

Страница 660: ...Functional description KV4x Reference Manual Rev 2 02 2015 660 Preliminary Freescale Semiconductor Inc...

Страница 661: ...ARA_OUT12 and PDB0 channel trigger outputs can trigger ADCA and ADCB parallel sampling conversion via SYNC0 input XBARA_OUT13 and PDB1 channel trigger outputs can trigger ADCB conversions via SYNC1 in...

Страница 662: ...power mode 34 1 5 ADC channel muxing Each of ADCA_ANA6 7 and ADCB_ANB6 7 have analog 8 to 1 muxing to expand the channels The muxing is controlled by SIM_ADCOPT Introduction 34 2 1 Overview The analo...

Страница 663: ...nverters operating asynchronously to each other in parallel A scan can pause and await new SYNC input prior to continuing Gains the input signal by x1 x2 or x4 Optional interrupts at end of scan if an...

Страница 664: ...al Descriptions 34 3 1 Overview Table 34 2 External Signal Properties Name I O Type Function Reset State Notes ANA0 ANB7 I Analog Input Pins n a VREFH I Voltage Reference Pin of ADCA n a Selectable be...

Страница 665: ...ices and signal routing 2 04pf 3 Equivalent resistance for the ESD isolation resistor and the channel select multiplexer 500 4 Sampling capacitor at the sample and hold circuit 1pf Figure 34 2 Equival...

Страница 666: ...ster ADC_ZXCTRL1 16 R W 0000h 34 4 3 676 4005_C006 ADC Zero Crossing Control 2 Register ADC_ZXCTRL2 16 R W 0000h 34 4 4 677 4005_C008 ADC Channel List Register 1 ADC_CLIST1 16 R W 3210h 34 4 5 679 400...

Страница 667: ...00h 34 4 15 691 4005_C02E ADC Result Registers with sign extension ADC_RSLT9 16 R W 0000h 34 4 15 691 4005_C030 ADC Result Registers with sign extension ADC_RSLT10 16 R W 0000h 34 4 15 691 4005_C032 A...

Страница 668: ...4 16 692 4005_C05A ADC Low Limit Registers ADC_LOLIM15 16 R W 0000h 34 4 16 692 4005_C05C ADC High Limit Registers ADC_HILIM0 16 R W 7FF8h 34 4 17 693 4005_C05E ADC High Limit Registers ADC_HILIM1 16...

Страница 669: ...4 18 693 4005_C086 ADC Offset Registers ADC_OFFST5 16 R W 0000h 34 4 18 693 4005_C088 ADC Offset Registers ADC_OFFST6 16 R W 0000h 34 4 18 693 4005_C08A ADC Offset Registers ADC_OFFST7 16 R W 0000h 34...

Страница 670: ...cans except parallel scans in the B converter when CTRL2 SIMULT 0 Non simultaneous parallel scan modes allow independent parallel scanning in the A and B converter Bits 14 13 12 and 11 in CTRL2 are us...

Страница 671: ...e to the SCTRL SCn bits CTRL1 SYNC0 is cleared in ONCE mode CTRL1 SMODE 000 or 001 when the first SYNC input is detected This prevents unintentionally starting a new scan after the first scan has comp...

Страница 672: ...ANA2 ANA3 Both configured as single ended inputs x1xx Inputs ANB0 ANB1 Configured as differential pair ANB0 is and ANB1 is x0xx Inputs ANB0 ANB1 Both configured as single ended inputs 1xxx Inputs ANB...

Страница 673: ...he process repeats perpetually until the CTRL1 STOP0 bit is set While a loop mode is running any additional start commands or sync pulses are ignored unless the scan is paused using the SCTRL SC bits...

Страница 674: ...ses see CTRL2 SYNC1 bit or writes to the CTRL2 START1 bit are ignored until this bit has been cleared After the ADC is in stop mode the results registers can be modified by the processor Any changes t...

Страница 675: ...ts return the max value 2 12 1 when the input is VREFH and the input is VREFLO return 0 when the input is at VREFLO and the input is at VREFH and scale linearly between based on the voltage difference...

Страница 676: ...d the maximum frequency This clock is used by ADCA during all scans and is used by ADCB during sequential scan modes and during parallel simultaneous scan modes 34 4 3 ADC Zero Crossing Control 1 Regi...

Страница 677: ...o Crossing enabled for any sign change 3 2 ZCE1 Zero crossing enable 1 00 Zero Crossing disabled 01 Zero Crossing enabled for positive to negative sign change 10 Zero Crossing enabled for negative to...

Страница 678: ...change 11 Zero Crossing enabled for any sign change 7 6 ZCE11 Zero crossing enable 11 00 Zero Crossing disabled 01 Zero Crossing enabled for positive to negative sign change 10 Zero Crossing enabled...

Страница 679: ...NB4 ANB5 1101 Single Ended ANB5 Differential ANB4 ANB5 1110 Single Ended ANB6 Differential ANB6 ANB7 1111 Single Ended ANB7 Differential ANB6 ANB7 11 8 SAMPLE2 Sample Field 2 0000 Single Ended ANA0 Di...

Страница 680: ...Single Ended ANA0 Differential ANA0 ANA1 0001 Single Ended ANA1 Differential ANA0 ANA1 0010 Single Ended ANA2 Differential ANA2 ANA3 0011 Single Ended ANA3 Differential ANA2 ANA3 0100 Single Ended ANA...

Страница 681: ...A2 ANA3 0100 Single Ended ANA4 Differential ANA4 ANA5 0101 Single Ended ANA5 Differential ANA4 ANA5 0110 Single Ended ANA6 Differential ANA6 ANA7 0111 Single Ended ANA7 Differential ANA6 ANA7 1000 Sin...

Страница 682: ...ntial ANB2 ANB3 1011 Single Ended ANB3 Differential ANB2 ANB3 1100 Single Ended ANB4 Differential ANB4 ANB5 1101 Single Ended ANB5 Differential ANB4 ANB5 1110 Single Ended ANB6 Differential ANB6 ANB7...

Страница 683: ...ANB2 ANB3 1100 Single Ended ANB4 Differential ANB4 ANB5 1101 Single Ended ANB5 Differential ANB4 ANB5 1110 Single Ended ANB6 Differential ANB6 ANB7 1111 Single Ended ANB7 Differential ANB6 ANB7 7 4 S...

Страница 684: ...0 9 8 7 6 5 4 3 2 1 0 Read SAMPLE15 SAMPLE14 SAMPLE13 SAMPLE12 Write Reset 1 1 1 1 1 1 1 0 1 1 0 1 1 1 0 0 ADC_CLIST4 field descriptions Field Description 15 12 SAMPLE15 Sample Field 15 0000 Single En...

Страница 685: ...gle Ended ANA3 Differential ANA2 ANA3 0100 Single Ended ANA4 Differential ANA4 ANA5 0101 Single Ended ANA5 Differential ANA4 ANA5 0110 Single Ended ANA6 Differential ANA6 ANA7 0111 Single Ended ANA7 D...

Страница 686: ...d subsequent ADC acquisition also does not occur Remembering that the ADC sequentially scans in order SAMPLE0 SAMPLE1 SAMPLE2 etc thus if ADC_SDIS 0xFFF7 then an ADC scan acquires SAMPLE0 while SAMPLE...

Страница 687: ...cates whether a scan is in progress This refers to any scan except a B converter scan in non simultaneous parallel scan modes 0 Idle state 1 A scan cycle is in progress The ADC will ignore all sync pu...

Страница 688: ...f 0000h is programmed into the offset register the result will always be greater than or equal to zero and no zero crossing can occur because the sign of the result will not change This interrupt asse...

Страница 689: ...been read 1 Sample ready to be read 34 4 12 ADC Low Limit Status Register ADC_LOLIMSTAT The low limit status register latches in the result of the comparison between the result of the sample and the r...

Страница 690: ...ue of one to that specific bit Address 4005_C000h base 18h offset 4005_C018h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read HLS 15 0 Write w1c Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ADC_HILIMSTAT field...

Страница 691: ...n Address 4005_C000h base 1Ch offset 2d i where i 0d to 15d Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read SEXT RSLT 0 Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ADC_RSLTn field descriptions Field De...

Страница 692: ...er is used for the comparison of Result High Limit The low limit register is used for the comparison of Result Low Limit The limit checking can be disabled by programming the respective limit register...

Страница 693: ...Reset 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 ADC_HILIMn field descriptions Field Description 15 Reserved This field is reserved This read only field is reserved and always has the value 0 14 3 HLMT High Limi...

Страница 694: ...generator have a manual power control bit capable of putting that component into the power down state Converters have other mechanisms that can automatically put them into the power down state Idle st...

Страница 695: ...bit is asserted immediately following a write of 1 to PWR PD1 It is de asserted PWR PUDELAY ADC clock cycles after a write of 0 to PWR PD1 if PWR APD is 0 This bit can be read as a status bit to dete...

Страница 696: ...s bit powers down converter B immediately The results of a scan using converter B will be invalid while PWR PD1 is asserted When PWR PD1 is cleared converter B is either continuously powered up PWR AP...

Страница 697: ...REFLO reference for all conversions in converter 1 0 VREFL pad 1 ANB3 13 SEL_VREFH_A Select V REFH Source This bit selects the source of the VREFH reference for all conversions in converter 0 0 VREFH...

Страница 698: ...criptions Field Description 15 14 GAIN7 Gain Control Bit 7 GAIN 7 controls ANA7 00 x1 amplification 01 x2 amplification 10 x4 amplification 11 reserved 13 12 GAIN6 Gain Control Bit 6 GAIN 6 controls A...

Страница 699: ...ANA0 00 x1 amplification 01 x2 amplification 10 x4 amplification 11 reserved 34 4 22 Gain Control 2 Register ADC_GC2 The gain control registers are used to control amplification of each of the 16 inpu...

Страница 700: ...10 x4 amplification 11 reserved 9 8 GAIN12 Gain Control Bit 12 GAIN 12 controls ANB4 00 x1 amplification 01 x2 amplification 10 x4 amplification 11 reserved 7 6 GAIN11 Gain Control Bit 11 GAIN 11 cont...

Страница 701: ...order from SC0 to SC15 During simultaneous parallel scan modes the bits are used in order from SC0 to SC3 and SC8 to SC11 In non simultaneous parallel scans ADCA uses the bits in order from SC0 to SC3...

Страница 702: ...trol Bits These bits configure the clock speed at which the ADCB can operate Faster conversion speeds require greater current consumption 00 Conversion clock frequency 6 25 MHz current consumption per...

Страница 703: ...controlled by CTRL3 SCNT0 The default value is 0 which corresponds to a sampling time of 2 ADC clocks Each increment of CTRL3 SCNT1 corresponds to an additional ADC clock cycle of sampling time with a...

Страница 704: ...nverters store their results in an accessible buffer awaiting further processing The conversion process is initiated either by a SYNC signal or by writing a 1 to a START bit Starting a single conversi...

Страница 705: ...3 ANB4 ANB5 ANB6 ANB7 Figure 34 94 ADC Sequential Scan Mode In parallel scan mode eight of the sixteen samples are allocated to converter A and eight are allocated to converter B Two converters operat...

Страница 706: ...ANA 4 5 ANA 6 7 ANB 0 1 ANB 2 3 ANB 4 5 ANB 6 7 When they are so configured a reference to either member of the differential pair by a sample slot results in a differential measurement using that dif...

Страница 707: ...occur any time after the SYNC pulse including while the scan is still in process Optional interrupts can be generated at the end of a scan sequence Interrupts are available simply to indicate that a s...

Страница 708: ...ction Converter A To Interface Function Converter B ADCB VREFH ADCB VREFL Figure 34 96 Input Select Multiplex The multiplexing for conversions in different operating modes is as follows Sequential sin...

Страница 709: ...e ended The two 1 of 8 select multiplexes can be set for the appropriate input line The lower switch is closed providing VREFH VREFL 2 to the differential input of the A D The upper switch is always c...

Страница 710: ...240 ns not including sample or post processing time ANA0 ANA7 ANB0 ANB1 Analog Input Select Multiplex Analog Input Select Multiplex Interface Function Program Gain Interface Function Program Gain Mul...

Страница 711: ...ended ANB 4 5 differential ANB 6 7 single ended 34 5 2 1 1 Single Ended Samples The ADC module performs a ratio metric conversion For single ended measurements the digital result is proportional to th...

Страница 712: ...value from each sample and the resultant value is stored in the result register RSLT The raw ADC value and the RSLT values are checked for limit violations and zero crossing as shown Appropriate inter...

Страница 713: ...and ANB6 7 can be set to be measured differentially using the CHNCFG field If a sample refers to an input that is not configured as a member of a differential pair a single ended measurement is made I...

Страница 714: ...Setting the CTRL1 STOP0 bit stops and prevents the initiation of scanning in both converters Setting CTRL2 SIMULT 0 non simultaneous mode causes parallel scanning to operate independently in the A and...

Страница 715: ...power modes are discussed in order from from highest to lowest power usage Mode Description Normal power At least one ADC converter is powered up PWR PD0 or PD1 is 0 the PWR APD and ASB bits are both...

Страница 716: ...rsion clock and revert power up the converters and stabilize them in the standby current mode This is the slowest and lowest power operational configuration of the ADC Powerdown Both ADC converters an...

Страница 717: ...an during the PWR PUDELAY are ignored until the appropriate PWR PSTSn bits are cleared Any attempt to use a converter when it is powered down or with the voltage references disabled will result in inv...

Страница 718: ...k is sourced by fast bus clock in normal mode and MCGIRC in stop mode and CTRL2 DIV0 and PWR2 DIV1 should be configured so that conversion clock frequency falls between 100 kHz and 25 MHz Operating th...

Страница 719: ...ck to the conversion clock at the start of a scan than auto powerdown mode which uses only the conversion clock as the ADC clock source but fully powers down the converters when idle The standby curre...

Страница 720: ...w limit exceeded error occurs when the current result value is less than the low limit register value The raw result value is compared to LOLIM LLMT before the offset register value is subtracted High...

Страница 721: ...nterrupt EOSIx Zero crossing or limit error interrupt ZCI LLMTI and HLMTI sample0 sample1 Ignored CLK ADC CLK Sync Pulse or Start Bit Multiplex Select CIP ADCSTAT Bit 15 Sample Hold ADC Result Latched...

Страница 722: ...The figure shown here illustrates the case in which PWR APD and ASB are not in use When the PWR APD or ASB bit is set the sync pulse or start powers up the ADC waits for a number of ADC clocks determi...

Страница 723: ...N3 pin PTC9 pin81 of 100 IN4 input channel input CMP0_IN4 pin pin28 of 100 IN5 input channel input CMP0_IN5 pin PTE29 pin26 of 100 IN6 input channel input bandgap IN7 input channel input 6bDAC WindowI...

Страница 724: ...in43 of 100 IN2 input channel input CMP2_IN2 pin PTB2 pin55 of 100 IN3 input channel input CMP2_IN3 pin pin28 of 100 IN4 input channel input CMP2_IN4 pin PTC6 pin78 of 100 IN5 input channel input CMP2...

Страница 725: ...e of the supply voltage known as rail to rail operation The Analog MUX ANMUX provides a circuit for selecting an analog input signal from eight channels One signal is provided by the 6 bit digital to...

Страница 726: ...al SAMPLE signal or scaled bus clock External hysteresis can be used at the same time that the output filter is used for internal functions Two software selectable performance levels Shorter propagati...

Страница 727: ...e ANMUX has the following features Two 8 to 1 channel mux Operational over the entire supply range 35 2 4 CMP DAC and ANMUX diagram The following figure shows the block diagram for the High Speed Comp...

Страница 728: ...Reference Input 1 Reference Input 2 Reference Input 3 Reference Input 4 Reference Input 5 Reference Input 6 INP INM Sample input Figure 35 1 CMP DAC and ANMUX block diagram 35 2 5 CMP block diagram T...

Страница 729: ...E 1 the comparator output will be sampled on every bus clock when WINDOW 1 to generate COUTA Sampling does NOT occur when WINDOW 0 The Filter block is bypassed when not in use The Filter block acts as...

Страница 730: ...ster CMP1_FPR 8 R W 00h 35 3 3 733 4007_300B CMP Status and Control Register CMP1_SCR 8 R W 00h 35 3 4 733 4007_300C DAC Control Register CMP1_DACCR 8 R W 00h 35 3 5 734 4007_300D MUX Control Register...

Страница 731: ...0 2 consecutive samples must agree 011 3 consecutive samples must agree 100 4 consecutive samples must agree 101 5 consecutive samples must agree 110 6 consecutive samples must agree 111 7 consecutive...

Страница 732: ...imer resource 0 Trigger mode is disabled 1 Trigger mode is enabled 4 PMODE Power Mode Select See the electrical specifications table in the device Data Sheet for details 0 Low Speed LS Comparison mode...

Страница 733: ...set 0 0 0 0 0 0 0 0 CMPx_FPR field descriptions Field Description FILT_PER Filter Sample Period Specifies the sampling period in bus clock cycles of the comparator output filter when CR1 SE 0 Setting...

Страница 734: ...ects a rising edge on COUT when set during normal operation CFR is cleared by writing 1 to it During Stop modes CFR is edge sensitive 0 Rising edge on COUT has not been detected 1 Rising edge on COUT...

Страница 735: ...1 0 Read Reserved 0 PSEL MSEL Write Reset 0 0 0 0 0 0 0 0 CMPx_MUXCR field descriptions Field Description 7 Reserved Bit can be programmed to zero only This field is reserved 6 Reserved This field is...

Страница 736: ...INM CMPO is high when the non inverting input is greater than the inverting input and is low when the non inverting input is less than the inverting input This signal can be selectively inverted by s...

Страница 737: ...ual modes are discussed below Table 35 37 Comparator sample filter controls Mode CR1 EN CR1 WE CR1 SE CR0 FILTER_C NT FPR FILT_PER Operation 1 0 X X X X Disabled See the Disabled mode 1 2A 1 0 0 0x00...

Страница 738: ...drive a fault input for example for a motor control module such as FTM it must be configured to operate in Continuous mode so that an external fault can immediately pass through the comparator to the...

Страница 739: ...is powered and active CMPO may be optionally inverted but is not subject to external sampling or filtering Both window control and filter blocks are completely bypassed SCR COUT is updated continuous...

Страница 740: ...ctive The path from analog inputs to COUTA is combinational unclocked Windowing control is completely bypassed COUTA is sampled whenever a rising edge is detected on the filter block clock input The o...

Страница 741: ...nally derived 35 4 1 4 Sampled Filtered mode s 4A 4B In Sampled Filtered mode the analog comparator block is powered and active The path from analog inputs to COUTA is combinational unclocked Windowin...

Страница 742: ...AMPLE 1 0 EN PMODE HYSTCTR 1 0 divided bus clock CMPO 0x01 Internal bus Polarity select Window control Filter block Interrupt control Clock prescaler To other SOC functions Figure 35 36 Sampled Filter...

Страница 743: ...at now CR0 FILTER_CNT 1 which activates filter operation 35 4 1 5 Windowed mode s 5A 5B The following figure illustrates comparator operation in the Windowed mode ignoring latency of the analog compar...

Страница 744: ...ck COS 0x01 IER F CFR F WINDOW SAMPLE Polarity select Window control Filter block Interrupt control divided bus clock Clock prescaler CMPO Internal bus To other SOC functions Figure 35 39 Windowed mod...

Страница 745: ...on Depending upon the sampling rate and window placement COUT may not see zero crossing events detected by the analog comparator Sampling period and or window placement must be carefully considered fo...

Страница 746: ...tched value is held when WINDOW 0 IRQ EN PMODE HYSCTR 1 0 INP INM FILTER_CNT INV COUT COUT OPE SE CMPO to PAD COUTA 0 1 WE 1 0 SE 0 CGMUX COS FILT_PER 0 1 FILT_PER bus clock COS IER F CFR F WINDOW SAM...

Страница 747: ...Startup and operation A typical startup sequence is listed here The time required to stabilize COUT will be the power on delay of the comparators plus the largest propagation delay from a selected an...

Страница 748: ...nput voltages differ by less than the offset voltage of the differential comparator 35 4 4 1 Enabling filter modes Filter modes can be enabled by Setting CR0 FILTER_CNT 0x01 and Setting FPR FILT_PER t...

Страница 749: ...actual output change within the nominal latency is the probability of a correct sample raised to the power of CR0 FILTER_CNT The following table summarizes maximum latency values for the various modes...

Страница 750: ...DMA support is enabled by setting SCR DMAEN and the interrupt is enabled by setting SCR IER SCR IEF or both the corresponding change on COUT forces a DMA transfer request rather than a CPU interrupt i...

Страница 751: ...tains a 64 tap resistor ladder network and a 64 to 1 multiplexer which selects an output voltage from one of 64 distinct levels that outputs from DACO It is controlled through the DAC Control Register...

Страница 752: ...as no interrupts 35 13 CMP Trigger Mode CMP and DAC are configured to CMP Trigger mode when CMP_CR1 TRIGM is set to 1 In addition the CMP must be enabled If the DAC is to be used as a reference to the...

Страница 753: ...B0_DAC_trig and PDB1_DAC_trig outputs 36 1 2 12 bit DAC Output The output of the DAC can be placed on an external pin or set as one of the inputs to the analog comparator or ADC 36 1 3 12 bit DAC Refe...

Страница 754: ...mable reference generator output The voltage output range is from 1 4096 Vin to Vin and the step is 1 4096 Vin where Vin is the input voltage Vin can be selected from two reference sources Static oper...

Страница 755: ...BBIEN OR dac_interrupt DACTRGSE LPEN DACRFS DACREF_1 Vin Vo Data Buffer Figure 36 1 DAC block diagram 36 5 Memory map register definition The DAC has registers to control analog comparator and program...

Страница 756: ...AC_DAT8L 8 R W 00h 36 5 1 757 4003_F011 DAC Data High Register DAC_DAT8H 8 R W 00h 36 5 2 757 4003_F012 DAC Data Low Register DAC_DAT9L 8 R W 00h 36 5 1 757 4003_F013 DAC Data High Register DAC_DAT9H...

Страница 757: ...igh Register DAC_DATnH Address 4003_F000h base 1h offset 2d i where i 0d to 15d Bit 7 6 5 4 3 2 1 0 Read 0 DATA1 Write Reset 0 0 0 0 0 0 0 0 DAC_DATnH field descriptions Field Description 7 4 Reserved...

Страница 758: ...ermark level 1 The DAC buffer read pointer has reached the watermark level 1 DACBFRPTF DAC Buffer Read Pointer Top Position Flag In FIFO mode it is FIFO nearly empty flag It is set when only one data...

Страница 759: ...ware trigger is selected and buffer is enabled writing 1 to this field will advance the buffer read pointer once 0 The DAC soft trigger is not valid 1 The DAC soft trigger is valid 3 LPEN DAC Low Powe...

Страница 760: ...per limit DACBUP SR DACBFWMF will be set This allows user configuration of the watermark interrupt In FIFO mode it is FIFO watermark select field 00 In normal mode 1 word In FIFO mode 2 or less than 2...

Страница 761: ...writable and user can configure it to the same address to reset FIFO as empty 36 6 Functional description The 12 bit DAC module can select one of the two reference inputs DACREF_1 and DACREF_2 as the...

Страница 762: ...he buffer works as a circular buffer The read pointer increases by one every time the trigger occurs When the read pointer reaches the upper limit it goes to 0 directly in the next trigger event Buffe...

Страница 763: ...ACDATx will return the DATA addressed by the access address to the data buffer and both write pointer and read pointer in FIFO mode will NOT be changed by read access FIFO write can be happened when D...

Страница 764: ...ode In low power stop modes the DAC is fully shut down NOTE The assignment of module modes to core modes is chip specific For module to core mode assignments see the chapter that describes how modules...

Страница 765: ...cted to PWMA0_EXTA XBARA_OUT20 PWMA1_EXTA XBARA_OUT21 PWMA2_EXTA XBARA_OUT22 PWMA3_EXTA XBARA_OUT23 PWMA0_EXT_SYNC XBARA_OUT24 PWMA1_EXT_SYNC XBARA_OUT25 PWMA2_EXT_SYNC XBARA_OUT26 PWMA3_EXT_SYNC XBAR...

Страница 766: ...r double buffered VALx registers Submodule 0 PWMA_WR0 output is connected to DMAMUX0 ch 6 Submodule 1 PWMA_WR1 output is connected to DMAMUX0 ch 7 Submodule 2 PWMA_WR2 output is connected to DMAMUX0 c...

Страница 767: ...ndependently programmable PWM output polarity Independent top and bottom deadtime insertion Each complementary pair can operate with its own PWM frequency and deadtime values Individual software contr...

Страница 768: ...eactivated assuming they were active beforehand when these modes are exited Table 37 1 Modes when PWM Operation is Restricted Mode Description Stop PWM outputs are inactive Wait PWM outputs are driven...

Страница 769: ...MB2 PWMX2 EXT_FORCE Interrupts Sub Module 0 Sub Module 3 PWMA3 PWMB3 PWMX3 Master Sync Master Force FAULT0 3 Faults Master Reload Fault Channel 0 Figure 37 1 PWM Block Diagram Chapter 37 Pulse Width M...

Страница 770: ...Counter preload mux Pin Mux PWM_X Master Sync Master Reload register reloads PWM23 PWM45 Mux Select Logic Aux Clock sub module0 only External Sync Register reload mux Figure 37 2 PWM Submodule Block...

Страница 771: ...to force an update of the PWM outputs In this manner the PWM can be synchronized to external circuitry 37 3 6 PWM n _EXTA and PWM n _EXTB Alternate PWM Control Signals These pins allow an alternate s...

Страница 772: ...hole This 60 offset is based on the number of registers in a submodule The base address of submodule 2 is equal to the base address of submodule 1 plus this same 60 offset The pattern repeats for the...

Страница 773: ...17 793 4003_3024 Status Register PWMA_SM0STS 16 w1c 0000h 37 4 18 794 4003_3026 Interrupt Enable Register PWMA_SM0INTEN 16 R W 0000h 37 4 19 796 4003_3028 DMA Enable Register PWMA_SM0DMAEN 16 R W 0000...

Страница 774: ...lue 5 Register PWMA_SM0CVAL5 16 R 0000h 37 4 41 813 4003_3056 Capture Value 5 Cycle Register PWMA_SM0CVAL5CYC 16 R 0000h 37 4 42 813 4003_3060 Counter Register PWMA_SM1CNT 16 R 0000h 37 4 1 780 4003_3...

Страница 775: ...nt Register 1 PWMA_SM1DTCNT1 16 R W 07FFh 37 4 24 802 4003_3094 Capture Control A Register PWMA_SM1CAPTCTRLA 16 R W 0000h 37 4 25 802 4003_3096 Capture Compare A Register PWMA_SM1CAPTCOMPA 16 R W 0000...

Страница 776: ...h 37 4 5 785 4003_30CC Fractional Value Register 1 PWMA_SM2FRACVAL1 16 R W 0000h 37 4 6 786 4003_30CE Value Register 1 PWMA_SM2VAL1 16 R W 0000h 37 4 7 786 4003_30D0 Fractional Value Register 2 PWMA_S...

Страница 777: ...29 807 4003_30FE Capture Compare X Register PWMA_SM2CAPTCOMPX 16 R W 0000h 37 4 30 809 4003_3100 Capture Value 0 Register PWMA_SM2CVAL0 16 R 0000h 37 4 31 809 4003_3102 Capture Value 0 Cycle Register...

Страница 778: ...l Value Register 4 PWMA_SM3FRACVAL4 16 R W 0000h 37 4 12 789 4003_313A Value Register 4 PWMA_SM3VAL4 16 R W 0000h 37 4 13 790 4003_313C Fractional Value Register 5 PWMA_SM3FRACVAL5 16 R W 0000h 37 4 1...

Страница 779: ...37 4 35 811 4003_316A Capture Value 2 Cycle Register PWMA_SM3CVAL2CYC 16 R 0000h 37 4 36 811 4003_316C Capture Value 3 Register PWMA_SM3CVAL3 16 R 0000h 37 4 37 811 4003_316E Capture Value 3 Cycle Re...

Страница 780: ...cessible Address 4003_3000h base 0h offset 96d i where i 0d to 3d Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read CNT Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_SMnCNT field descriptions Field De...

Страница 781: ...CE Reset 0 0 0 0 0 0 0 0 PWMA_SMnCTRL2 field descriptions Field Description 15 DBGEN Debug Enable When set to one the PWM will continue to run while the chip is in debug mode If the device enters debu...

Страница 782: ...d when FORCE_INIT is asserted 11 PWM45_INIT PWM45 Initial Value This read write bit determines the initial value for PWM45 and the value to which it is forced when FORCE_INIT is asserted 10 PWMX_INIT...

Страница 783: ...de the PWM module causes updates 111 The external sync signal EXT_SYNC from outside the PWM module causes updates 2 RELOAD_SEL Reload Source Select This read write bit determines the source of the REL...

Страница 784: ...le is defined by when the submodule counter matches the VAL0 register and does not have to be half way through the PWM cycle 0 Half cycle reloads disabled 1 Half cycle reloads enabled 10 FULL Full Cyc...

Страница 785: ...uffered registers of this submodule are loaded and take effect immediately upon MCTRL LDOK being set In this case it is not necessary to set CTRL FULL or CTRL HALF 1 DBLX PWMX Double Switching Enable...

Страница 786: ...ts act as a fractional addition to the value in the VAL1 register which controls the PWM period width The PWM period is computed in terms of IPBus clock cycles This fractional portion is accumulated a...

Страница 787: ...originated by the Local Sync from sub module 0 is used to control the timer period the VAL1 register can be free for other functions such as PWM generation without the duty cycle limitation 37 4 8 Fra...

Страница 788: ...0 Read FRACVAL3 0 Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_SMnFRACVAL3 field descriptions Field Description 15 11 FRACVAL3 Fractional Value 3 These bits act as a fractional addition to the va...

Страница 789: ...VAL4 0 Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_SMnFRACVAL4 field descriptions Field Description 15 11 FRACVAL4 Fractional Value 4 These bits act as a fractional addition to the value in the V...

Страница 790: ...1 0 Read FRACVAL5 0 Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_SMnFRACVAL5 field descriptions Field Description 15 11 FRACVAL5 Fractional Value 5 These bits act as a fractional addition to the v...

Страница 791: ...ster PWMA_SMnFRCTRL Address 4003_3000h base 20h offset 96d i where i 0d to 3d Bit 15 14 13 12 11 10 9 8 Read TEST 0 FRAC_PU Write Reset 0 0 0 0 0 0 0 0 Bit 7 6 5 4 3 2 1 0 Read 0 FRAC45_ EN 0 FRAC23_...

Страница 792: ...is used to enable the fractional cycle edge placement of PWM_A using the FRACVAL2 and FRACVAL3 registers When disabled the fractional cycle edge placement of PWM_A is bypassed NOTE The FRAC23_EN bit i...

Страница 793: ...always has the value 0 10 POLA PWM_A Output Polarity This bit inverts the PWM_A output polarity 0 PWM_A output not inverted A high level on the PWM_A pin represents the on or active state 1 PWM_A outp...

Страница 794: ...deration of output polarity control 01 Output is forced to logic 1 state prior to consideration of output polarity control 10 Output is tristated 11 Output is tristated PWMXFS PWM_X Fault State These...

Страница 795: ...reload cycle since last STS RF clearing 11 CFA1 Capture Flag A1 This bit is set when a capture event occurs on the Capture A1 circuit This bit is cleared by writing a one to this bit position if DMAEN...

Страница 796: ...Reset 0 0 0 0 0 0 0 0 Bit 7 6 5 4 3 2 1 0 Read CX1IE CX0IE CMPIE Write Reset 0 0 0 0 0 0 0 0 PWMA_SMnINTEN field descriptions Field Description 15 14 Reserved This field is reserved This read only fie...

Страница 797: ...t and DMAEN CB0DE 0 Interrupt request disabled for STS CFB0 1 Interrupt request enabled for STS CFB0 7 CX1IE Capture X 1 Interrupt Enable This bit allows the STS CFX1 flag to create an interrupt reque...

Страница 798: ...is bit determines if the selected watermarks are AND ed together or OR ed together in order to create the request 0 Selected FIFO watermarks are OR ed together 1 Selected FIFO watermarks are AND ed to...

Страница 799: ...A read requests for the Capture X0 FIFO data when STS CFX0 is set Reset clears this bit Do not set both this bit and INTEN CX0IE 37 4 21 Output Trigger Control Register PWMA_SMnTCTRL Address 4003_3000...

Страница 800: ...e PWM outputs the output trigger signals will lead the PWM output edges by 2 3 clock cycles depending on the fractional cycle value being used 0 PWM_OUT_TRIGx will not set when the counter value match...

Страница 801: ...o complementary channel operation The values written to the DTCNTx registers are in terms of IPBus clock cycles regardless of the setting of CTRL PRSC and or CTRL2 CLK_SEL Reset sets the deadtime coun...

Страница 802: ...T1 field descriptions Field Description 15 11 Reserved This field is reserved This read only field is reserved and always has the value 0 DTCNT1 Deadtime Count Register 1 The DTCNT1 field is used to c...

Страница 803: ...edges specified by the CAPTCTRLA EDGA0 and CAPTCTRLA EDGA1 fields are ignored The software must still place a value other than 00 in either or both of the CAPTCTLRA EDGA0 and or CAPTCTRLA EDGA1 field...

Страница 804: ...t capture process This bit can be cleared at any time to disable input capture operation This bit is self cleared when in one shot mode and one or more of the enabled capture circuits has had a captur...

Страница 805: ...enables the edge counter which counts rising and falling edges on the PWM_B input signal 0 Edge counter disabled and held in reset 1 Edge counter enabled 6 INP_SELB Input Select B This bit selects bet...

Страница 806: ...uits are enabled then capture circuit 0 is armed first after CAPTCTRLB ARMB is set Once a capture occurs capture circuit 0 is disarmed and capture circuit 1 is armed After capture circuit 1 performs a...

Страница 807: ...e Capture X1 FIFO FIFO depth is 1 12 10 CX0CNT Capture X0 FIFO Word Count This field reflects the number of words in the Capture X0 FIFO FIFO depth is 1 9 8 CFXWM Capture X FIFOs Water Mark This field...

Страница 808: ...rmed first after the ARMX bit is set Once a capture occurs capture circuit 0 is disarmed and capture circuit 1 is armed After capture circuit 1 performs a capture it is disarmed and capture circuit 0...

Страница 809: ...0 9 8 7 6 5 4 3 2 1 0 Read CAPTVAL0 Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_SMnCVAL0 field descriptions Field Description CAPTVAL0 This read only register stores the value captured from the s...

Страница 810: ...s is defined by CAPTCTRLX EDGX1 Each capture increases the value of CAPTCTRLX CX1CNT by 1 until the maximum value is reached Each read of this register decreases the value of CAPTCTRLX CX1CNT by 1 unt...

Страница 811: ...MnCVAL2CYC Address 4003_3000h base 4Ah offset 96d i where i 0d to 3d Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read 0 CVAL2CYC Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_SMnCVAL2CYC field descri...

Страница 812: ...ways has the value 0 CVAL3CYC This read only register stores the cycle number corresponding to the value captured in CVAL3 This register is incremented each time the counter is loaded with the INIT va...

Страница 813: ...i 0d to 3d Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read CAPTVAL5 Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_SMnCVAL5 field descriptions Field Description CAPTVAL5 This read only register store...

Страница 814: ...value 0 11 8 PWMA_EN PWM_A Output Enables The four bits of this field enable the PWM_A outputs of submodules 3 0 respectively These bits should be set to 0 output disabled when a PWM_A pin is being u...

Страница 815: ...n that updates the MASKA MASKB and MASKX fields of this register 0 Normal operation MASK bits within the corresponding submodule are not updated until a FORCE_OUT event occurs within the submodule 1 I...

Страница 816: ...3 Software Controlled Output 45 This bit is only used when DTSRCSEL SM3SEL45 is set to b10 It allows software control of which signal is supplied to the deadtime generator of that submodule 0 A logic...

Страница 817: ...e generator of submodule 0 instead of PWM23 0 SM0OUT45 Submodule 0 Software Controlled Output 45 This bit is only used when DTSRCSEL SM0SEL45 is set to b10 It allows software control of which signal i...

Страница 818: ...rides to the generated SM2PWM45 signal that will be passed to the deadtime logic upon the occurrence of a FORCE_OUT event in that sudeadtime logic upon the occurrence of a FORCE_OUT event in that subm...

Страница 819: ...n every 4 bit field in this register each bit acts on a separate submodule Accordingly the description of every bitfield refers to the effect of an individual bit Address 4003_3000h base 188h offset 4...

Страница 820: ...sor submodule counter modulus value and PWM pulse width take effect at the next PWM reload if CTRL LDMOD is clear or immediately if CTRL LDMOD is set Set the corresponding MCTRL LDOK bit by reading it...

Страница 821: ...eration Resetting of the fractional delay block in case of PLL losing lock will be controlled by software 01 Not locked Monitor PLL operation to automatically disable the fractional delay block when t...

Страница 822: ...the state of FSTS FFULL without regard to the state of FSTS FFPINx The PWM outputs disabled by this fault input will not be re enabled until the actual FAULTx input signal de asserts since the fault...

Страница 823: ...ossible 0 PWM outputs are not re enabled at the start of a full cycle 1 PWM outputs are re enabled at the start of a full cycle FFLAG Fault Flags These read only flag is set within two CPU cycles afte...

Страница 824: ...in the fault flags 0 Fault input glitch stretching is disabled 1 Input fault signals will be stretched to at least 2 IPBus clock cycles 14 11 Reserved This field is reserved This read only field is re...

Страница 825: ...0 NOCOMB Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PWMA_FCTRL2 field descriptions Field Description 15 4 Reserved This field is reserved This read only field is reserved and always has the value 0 N...

Страница 826: ...ed and latched fault signals to disable the PWM outputs 1 The direct combinational path from the fault inputs to the PWM outputs is disabled and the filtered and latched fault signals are used to disa...

Страница 827: ...ded with a user specified value which may or may not be zero If the value chosen happens to be the 2 s complement of the modulus value then the PWM generator operates in signed mode This means that if...

Страница 828: ...the benefits of signed mode can be seen A common way to drive an H bridge is to use a technique called bipolar PWMs where a 50 duty cycle results in zero volts on the load Duty cycles less than 50 res...

Страница 829: ...ally if ADC readings of the inverter must be scheduled near those times Phase shifting the PWM signals can open up timing windows between the switching edges to allow a signal to be sampled by the ADC...

Страница 830: ...hift no DC component appears in the load voltage as long as the duty cycle of each square wave remains at 50 making this technique ideally suited for transformer loads As a result this topology is fre...

Страница 831: ...g figure shows The DBLPWM signal can be run through the deadtime insertion logic VAL1 0100 VAL3 VAL5 VAL0 0000 VAL4 VAL2 INIT FF00 PWM_A DBLPWM PWM_B Figure 37 228 Double Switching Output Example 37 5...

Страница 832: ...each submodule to run at a different frequency One of the options possible with this PWM module is to have one or more submodules running at a lower frequency but still synchronized to the timer in s...

Страница 833: ...or one shot fashion By simply programming the desired edge of each capture circuit period and pulse width of an input signal can easily be measured without the requirement to re arm the circuit In add...

Страница 834: ...However when measuring a signal that is synchronous to the PWM frequency the timer modulus range is perfectly suited for the application Consider the following figure as an example In this application...

Страница 835: ...ing any interrupt latency The synchronous output switching is accomplished via a signal called FORCE_OUT This signal originates from the local FORCE bit within the submodule from submodule0 or from ex...

Страница 836: ...234 shows the logic used to generate the main counter clock Each submodule can select between three clock signals the IPBus clock EXT_CLK and AUX_CLK The EXT_CLK goes to all of the submodules The AUX...

Страница 837: ...eload signal from submodule0 can be broadcast as the Master Reload signal allowing the reload logic from submodule0 to control the reload of registers in other submodules 0 1 Reload Logic counts PWM c...

Страница 838: ...ter initialization then the period of the counter will be locked to the register reload frequency of submodule0 Since the reload frequency is usually commensurate to the sampling frequency of the soft...

Страница 839: ...r 16 bit comparator 16 bit comparator 16 bit comparator Figure 37 237 PWM Generation Hardware The generation of the Local Sync signal is performed exactly the same way as the other PWM signals in the...

Страница 840: ...re possible An output compare sets the output high An output compare sets the output low An output compare generates an interrupt An output compare generates an output trigger In PWM generation an out...

Страница 841: ...e SEL23 and SEL45 fields each choose from one of four signals that can be supplied to the submodule outputs the PWM signal the inverted PWM signal a binary level specified by software via the OUT23 an...

Страница 842: ...independently of the other output Writing a logic zero to CTRL2 INDEP configures the PWM output as a pair of complementary channels The PWM pins are paired as shown in Figure 37 239 in complementary c...

Страница 843: ...top and bottom transistor But the transistor s characteristics may make its switching off time longer than switching on time To avoid the conducting overlap of top and bottom transistors deadtime need...

Страница 844: ...000 VAL2 VAL1 0100 PWM_A with deadtime PWM_A no deadtime Figure 37 241 Deadtime Insertion 37 5 2 8 1 Top Bottom Correction In complementary mode either the top or the bottom transistor controls the ou...

Страница 845: ...urn off delays of each of the transistors By giving the PWM module information on which transistor is controlling at a given time this distortion can be corrected For a typical circuit in complementar...

Страница 846: ...o CTRL DT values PWM_B CLK PWMX PWMB DT0 DT1 PWM_A PWMA Q D CLK Q D POSITIVE CURRENT NEGATIVE CURRENT VOLTAGE SENSOR Figure 37 243 Current status Sense Scheme for Deadtime Correction Both D flip flops...

Страница 847: ...lution for the PWM period Enable the use of the fractional delay logic by setting FRCTRL FRACx_EN The FRACVALx registers act as a fractional clock cycle addition to the turn on and turn off count spec...

Страница 848: ...PWM edges will dither from the nearest whole number values to achieve an average value that is equivalent to the programmed fractional value The added cycles are based on the accumulation of the fract...

Страница 849: ...with that pin are used to record the edge values The following figure is a block diagram of the E Capture circuit Upon entering the pin input the signal is split into two paths One goes straight to a...

Страница 850: ...l edges of the signal The type of edge to be captured by each circuit is determined by CAPTCTRLx EDGx1 and CAPTCTRLx EDGx0 whose functionality is listed in the preceding figure Also controlling the op...

Страница 851: ...depending the values of OCTRL PWMxFS The fault decoder disables PWM pins selected by the fault logic and the disable mapping DISMAPn registers The following figure shows an example of the fault disabl...

Страница 852: ...LT D NOCOMB2 FAULT2 DISA2 FILT D NOCOMB3 FAULT3 DISA3 Figure 37 247 Fault Decoder for PWM_A Table 37 224 Fault Mapping PWM Pin Controlling Register Bits PWM_A DISMAP0 DIS0A PWM_B DISMAP0 DIS0B PWM_X D...

Страница 853: ...LAGx by writing a logic one to the bit Software clears the FIEx bit by writing a logic zero to it A reset occurs Even with the filter enabled there is a combinational path from the FAULTx inputs to th...

Страница 854: ...lowing figure If FSTS FFULLx is set then the disabled PWM pins are enabled at the start of a full cycle If FSTS FHALFx is set then the disabled PWM pins are enabled at the start of a half cycle If the...

Страница 855: ...l occurs at half PWM cycle boundaries while the PWM generator is engaged MCTRL RUN equals one But the OUTx bits can control the PWM pins while the PWM generator is off MCTRL RUN equals zero Thus fault...

Страница 856: ...then writing a logic one to it After loading MCTRL LDOK is automatically cleared 37 5 3 2 Load Frequency CTRL LDFQ selects an integral loading frequency of one to 16 PWM reload opportunities CTRL LDFQ...

Страница 857: ...ag STS RF is set Setting STS RF happens even if an actual reload is prevented by MCTRL LDOK If the PWM reload interrupt enable bit INTEN RIE is set the STS RF flag generates CPU interrupt requests all...

Страница 858: ...RL RUN Note Even if MCTRL LDOK is not set setting MCTRL RUN also sets the STS RF flag To prevent a CPU interrupt request clear INTEN RIE before setting MCTRL RUN The PWM generator uses the last values...

Страница 859: ...e 1 compare interrupt Compare event has occurred PWM_CAP1 SM1STS CFA1 SM1STS CFA0 SM1STS CFB1 SM1STS CFB0 SM1STS CFX1 SM1STS CFX0 SM1INTEN CFA1IE SM1INTEN CFA0IE SM1INTEN CFB1IE SM1INTEN CFB0IE SM1INT...

Страница 860: ...on has been detected 37 8 DMA Each submodule can request a DMA read access for its capture FIFOs and a DMA write request for its double buffered VALx registers Table 37 226 DMA Summary DMA Request DMA...

Страница 861: ...CX1DE SM2 Capture FIFO X read request SM2CVAL1 contains a value to be read SM2DMAEN CA0DE SM2 Capture FIFO A0 read request SM2CVAL2 contains a value to be read SM2DMAEN CA1DE SM2 Capture FIFO A1 read...

Страница 862: ...3CVAL5 contains a value to be read SM3DMAEN CAPTDE SM3 Capture FIFO read request source select Selects source of submodule3 read DMA request Submodule 3 write request SM3DMAEN VALDE SM3VALx write requ...

Страница 863: ...output trigger the PDBs 38 1 1 1 PDB0 Output Triggers Table 38 1 PDB0 output triggers Number of PDB channels 1 Number of pre triggers per PDB channel 4 PDB_ch0_out ADCA sync0 DMA_MUX source 48 FTM0_T...

Страница 864: ...triggers as programmed in the FTM external trigger register EXTTRIG 1100 XBAR_OUT 38 1101 Reserved 1110 LPTMR Output 1111 Software Trigger 38 1 1 3 PDB1 Output Triggers Table 38 3 PDB1 output triggers...

Страница 865: ...tion trigger and channel triggers as programmed in the FTM external trigger register EXTTRIG 1100 XBAR_OUT 41 1101 Reserved 1110 LPTMR Output 1111 Software Trigger 38 1 2 PDB s DAC External Trigger In...

Страница 866: ...which can be used to trigger ADC conversion 4 times in sequence User can use the back to back feature of this chip to configure the two PDBs as a signal chain The ADC0 scan complete signal can be used...

Страница 867: ...bles the ADC conversions complete to trigger the next PDB channel One programmable delay interrupt One sequence error interrupt One channel flag and one sequence error flag per pre trigger DMA support...

Страница 868: ...ber of module output triggers to core is chip specific For module to core output triggers implementation see the chip configuration information 38 2 3 Back to back acknowledgment connections PDB back...

Страница 869: ...LY2 POyDLY1 Pulse Generation Pulse Out y PDBPOEN y Pulse Out y DAC interval trigger x From trigger mux TOEx DAC external trigger input Control logic PDB counter DAC interval counter x Figure 38 1 PDB...

Страница 870: ...ed in the modulus register and the counting is restarted This enables a continuous stream of pre triggers trigger outputs as a result of a single trigger input event Enabled Bypassed The pre trigger a...

Страница 871: ...Y 32 R W 0000_0000h 38 4 14 881 4003_1198 Pulse Out n Delay register PDB1_PO1DLY 32 R W 0000_0000h 38 4 14 881 4003_119C Pulse Out n Delay register PDB1_PO2DLY 32 R W 0000_0000h 38 4 14 881 4003_11A0...

Страница 872: ..._PO3DLY 32 R W 0000_0000h 38 4 14 881 38 4 1 Status and Control register PDBx_SC Address Base address 0h offset Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R 0 LDMOD PDBEIE 0 W SWTRIG Reset 0...

Страница 873: ...s no effect Reading this field results 0 15 DMAEN DMA Enable When DMA is enabled the PDBIF flag generates a DMA request instead of an interrupt 0 DMA disabled 1 DMA enabled 14 12 PRESCALER Prescaler D...

Страница 874: ...the IDLY register Writing zero clears this field 5 PDBIE PDB Interrupt Enable Enables the PDB interrupt When this field is set and DMAEN is cleared PDBIF generates a PDB interrupt 0 PDB interrupt dis...

Страница 875: ...7 6 5 4 3 2 1 0 R 0 MOD W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 PDBx_MOD field descriptions Field Description 31 16 Reserved This field is reserved This read only field...

Страница 876: ...n Control register 1 PDBx_CHnC1 Each PDB channel has one control register CHnC1 The fields in this register control the functionality of each PDB channel operation Address Base address 10h offset 40d...

Страница 877: ...tputs Only lower M pre trigger fields are implemented in this MCU 0 PDB channel s corresponding pre trigger disabled 1 PDB channel s corresponding pre trigger enabled 38 4 6 Channel n Status register...

Страница 878: ...re trigger The pre trigger asserts when the counter is equal to DLY Reading this field returns the value of internal register that is effective for the current PDB cycle 38 4 8 Channel n Delay 1 regis...

Страница 879: ...is effective for the current PDB cycle 38 4 10 Channel n Delay 3 register PDBx_CHnDLY3 Address Base address 24h offset 40d i where i 0d to 0d Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14...

Страница 880: ...or software trigger is selected and SWTRIG is written with 1 1 DAC external trigger input enabled DAC interval counter is bypassed and DAC external trigger input triggers the DAC interval trigger 0 T...

Страница 881: ...his MCU 0 PDB Pulse Out disabled 1 PDB Pulse Out enabled 38 4 14 Pulse Out n Delay register PDBx_POnDLY Address Base address 194h offset 4d i where i 0d to 3d Bit 31 30 29 28 27 26 25 24 23 22 21 20 1...

Страница 882: ...lock PDB channel n pre trigger outputs 0 to M each pre trigger output is connected to ADC hardware trigger select and hardware trigger inputs The pre triggers are used to precondition the ADC block be...

Страница 883: ...channel n is asserted the associated lock of the pre trigger becomes active The associated lock is released by the rising edge of the corresponding ADC_STATE EOSI1 EOSI0 the ADC_STATE EOSI1 EOSI0 sho...

Страница 884: ...generate the interval triggers for DACs to update their outputs periodically DAC interval counter x is reset and started when a trigger input event occurs if DACINTCx EXT is cleared When the interval...

Страница 885: ...s the value set in POyDLY DLY1 the Pulse Out goes high when the counter reaches POyDLY DLY2 it goes low POyDLY DLY2 can be set either greater or less than POyDLY DLY1 ADC pre trigger trigger outputs a...

Страница 886: ...ches the MOD register value after 1 is written to SC LDOK 10 A trigger input event is detected after 1 is written to SC LDOK 11 Either the PDB counter reaches the MOD register value or a trigger input...

Страница 887: ...A If SC DMAEN is set PDB can generate a DMA transfer request when SC PDBIF is set When DMA is enabled the PDB interrupt is not issued 38 6 Application information 38 6 1 Impact of using the prescaler...

Страница 888: ...ed are mod 4 and so forth If the applications need a really long delay value and use a prescaler set to 128 then the resolution would be limited to 128 peripheral clock cycles Therefore use the lowest...

Страница 889: ...C FTM1_C6SC FTM1_C7SC FTM1_C2V FTM1_C3V FTM1_C4V FTM1_C5V FTM1_C6V and FTM1_C7V NOTE CnSC ICRST is available only on FTM1 which has Hall sensor decoder mode FTM0 and FTM2 do not have this field 39 1 2...

Страница 890: ...urce 39 1 5 FTM Fault Detection Inputs The following fault detection input options for the FTM modules are selected via the SIM_SOPT4 register The external pin option is selected by default FTM0 FAULT...

Страница 891: ...input capture source options are selected via SIM_SOPTx The external pin option is selected by default FTM1 channel 0 input capture FTM1_CH0 pin or CMP0 output or CMP1 output via FTM1CH0SRC bit in SIM...

Страница 892: ...together to force an output trigger This EXTTRG3 signal is connected to PDB0 channel 1011 input PDB1 channel 1011 input XBARA_IN18 and XBARB_IN6 FTM3_CH0 event output to DMAMUX source 36 FTM3_CH1 even...

Страница 893: ...used as an unsigned or signed counter NOTE The number of channels supported can vary for each instance of the FTM module on a chip See the chip specific FTM information to see how many channels are s...

Страница 894: ...omatically These triggers can be linked in a variety of ways during integration of the sub modules so please note the options available for used FlexTimer configuration More than one FlexTimers may be...

Страница 895: ...e as pairs with equal outputs pairs with complementary outputs or independent channels with independent outputs The deadtime insertion is available for each complementary pair Generation of match trig...

Страница 896: ...the MCU from Wait mode the power can then be saved by disabling FTM functions before entering Wait mode 39 2 4 Block diagram The FTM uses one input output I O pin per channel CHn FTM channel n where...

Страница 897: ...V CH6IE CH6F CH1IE CH0IE CH7IE CH7F CH1F CH0F channel 0 interrupt channel 1 interrupt channel 6 interrupt channel 7 interrupt channel 7 match trigger channel 6 output signal channel 6 match trigger ch...

Страница 898: ...t each FAULTj input may affect all channels selectively since FAULTM 1 0 and FAULTEN control bits are defined for each pair of channels Because there are several FAULTj inputs maximum of 4 for the FTM...

Страница 899: ...n Status And Control FTM3_C1SC 32 R W 0000_0000h 39 4 6 907 4002_6018 Channel n Value FTM3_C1V 32 R W 0000_0000h 39 4 7 910 4002_601C Channel n Status And Control FTM3_C2SC 32 R W 0000_0000h 39 4 6 9...

Страница 900: ...Fault Control FTM3_FLTCTRL 32 R W 0000_0000h 39 4 20 933 4002_6080 Quadrature Decoder Control And Status FTM3_QDCTRL 32 R W 0000_0000h 39 4 21 936 4002_6084 Configuration FTM3_CONF 32 R W 0000_0000h 3...

Страница 901: ...nitial Value FTM0_CNTIN 32 R W 0000_0000h 39 4 8 910 4003_8050 Capture And Compare Status FTM0_STATUS 32 R W 0000_0000h 39 4 9 911 4003_8054 Features Mode Selection FTM0_MODE 32 R W 0000_0004h 39 4 10...

Страница 902: ...3SC 32 R W 0000_0000h 39 4 6 907 4003_9028 Channel n Value FTM1_C3V 32 R W 0000_0000h 39 4 7 910 4003_902C Channel n Status And Control FTM1_C4SC 32 R W 0000_0000h 39 4 6 907 4003_9030 Channel n Value...

Страница 903: ...trol FTM1_FLTCTRL 32 R W 0000_0000h 39 4 20 933 4003_9080 Quadrature Decoder Control And Status FTM1_QDCTRL 32 R W 0000_0000h 39 4 21 936 4003_9084 Configuration FTM1_CONF 32 R W 0000_0000h 39 4 22 93...

Страница 904: ...read only field is reserved and always has the value 0 7 TOF Timer Overflow Flag Set by hardware when the FTM counter passes the value in the MOD register The TOF bit is cleared by reading the SC reg...

Страница 905: ...ected This in effect disables the FTM counter 01 System clock 11 External clock PS Prescale Factor Selection Selects one of 8 division factors for the clock source selected by CLKS The new prescaler f...

Страница 906: ...e MOD register latches the value into a buffer The MOD register is updated with the value of its write buffer according to Registers updated from write buffers If FTMEN 0 this write coherency mechanis...

Страница 907: ...Falling Edge Only 11 Capture on Rising or Falling Edge 01 01 Output Compare Toggle Output on match 10 Clear Output on match 11 Set Output on match 1X 10 Edge Aligned PWM High true pulses clear Output...

Страница 908: ...le Detected Edges 0 0 Disabled No edge 0 1 Enabled Rising edge 1 0 Enabled Falling edge 1 1 Enabled Rising and falling edges Address Base address Ch offset 8d i where i 0d to 7d Bit 31 30 29 28 27 26...

Страница 909: ...n only when MODE WPDIS 1 4 MSA Channel Mode Select Used for further selections in the channel logic Its functionality is dependent on the channel mode See Table 39 8 This field is write protected It c...

Страница 910: ...TMx_CnV field descriptions Field Description 31 16 Reserved This field is reserved This read only field is reserved and always has the value 0 VAL Channel Value Captured FTM counter value of the input...

Страница 911: ...e read of STATUS All CHnF bits can be cleared by reading STATUS followed by writing 0x00 to STATUS Hardware sets the individual channel flags when an event occurs on the channel CHnF is cleared by rea...

Страница 912: ...the register description 0 No channel event has occurred 1 A channel event has occurred 5 CH5F Channel 5 Flag See the register description 0 No channel event has occurred 1 A channel event has occurre...

Страница 913: ...enable bit for FTM specific features and the control bits used to configure Fault control mode and interrupt Capture Test mode PWM synchronization Write protection Channel output initialization These...

Страница 914: ...OD CnV OUTMASK and FTM counter synchronization See PWM synchronization The PWMSYNC bit configures the synchronization when SYNCMODE is 0 0 No restrictions Software and hardware triggers can be used by...

Страница 915: ...ware or software triggers but not both at the same time otherwise unpredictable behavior is likely to happen The selection of the loading point CNTMAX and CNTMIN bits is intended to provide the update...

Страница 916: ...1 input signal 0 Trigger is disabled 1 Trigger is enabled 4 TRIG0 PWM Synchronization Hardware Trigger 0 Enables hardware trigger 0 to the PWM synchronization Hardware trigger 0 occurs when a rising e...

Страница 917: ...ing point is enabled 39 4 12 Initial State For Channels Output FTMx_OUTINIT Address Base address 5Ch offset Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R 0 W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

Страница 918: ...Output Initialization Value Selects the value that is forced into the channel output when the initialization occurs 0 The initialization value is 0 1 The initialization value is 1 1 CH1OI Channel 1 Ou...

Страница 919: ...ly 1 Channel output is masked It is forced to its inactive state 6 CH6OM Channel 6 Output Mask Defines if the channel output is masked or unmasked 0 Channel output is not masked It continues to operat...

Страница 920: ...continues to operate normally 1 Channel output is masked It is forced to its inactive state 39 4 14 Function For Linked Channels FTMx_COMBINE This register contains the control bits used to configure...

Страница 921: ...configuration of the dual edge capture bits This field applies only when DECAPEN 1 DECAP bit is cleared automatically by hardware if dual edge capture one shot mode is selected and when the capture of...

Страница 922: ...nly when MODE WPDIS 1 0 The deadtime insertion in this pair of channels is disabled 1 The deadtime insertion in this pair of channels is enabled 19 DECAP2 Dual Edge Capture Mode Captures For n 4 Enabl...

Страница 923: ...egisters C n V and C n 1 V 0 The PWM synchronization in this pair of channels is disabled 1 The PWM synchronization in this pair of channels is enabled 12 DTEN1 Deadtime Enable For n 2 Enables the dea...

Страница 924: ...ite protected It can be written only when MODE WPDIS 1 0 The fault control in this pair of channels is disabled 1 The fault control in this pair of channels is enabled 5 SYNCEN0 Synchronization Enable...

Страница 925: ...mbine feature for channels n and n 1 This field is write protected It can be written only when MODE WPDIS 1 0 Channels n and n 1 are independent 1 Channels n and n 1 are combined 39 4 15 Deadtime Inse...

Страница 926: ...a possible 63 counts This field is write protected It can be written only when MODE WPDIS 1 39 4 16 FTM External Trigger FTMx_EXTTRIG This register Indicates when a channel trigger was generated Enab...

Страница 927: ...ted 6 INITTRIGEN Initialization Trigger Enable Enables the generation of the trigger when the FTM counter is equal to the CNTIN register 0 The generation of initialization trigger is disabled 1 The ge...

Страница 928: ...TRIG Channel 2 Trigger Enable Enables the generation of the channel trigger when the FTM counter is equal to the CnV register 0 The generation of the channel trigger is disabled 1 The generation of th...

Страница 929: ...POL4 Channel 4 Polarity Defines the polarity of the channel output This field is write protected It can be written only when MODE WPDIS 1 0 The channel polarity is active high 1 The channel polarity...

Страница 930: ...4 18 Fault Mode Status FTMx_FMS This register contains the fault detection flags write protection enable bit and the logic OR of the enabled fault inputs Address Base address 74h offset Bit 31 30 29...

Страница 931: ...the enabled fault inputs is 0 1 The logic OR of the enabled fault inputs is 1 4 Reserved This field is reserved This read only field is reserved and always has the value 0 3 FAULTF3 Fault Detection Fl...

Страница 932: ...ult input 1 A fault condition was detected at the fault input 0 FAULTF0 Fault Detection Flag 0 Set by hardware when fault control is enabled the corresponding fault input is enabled and a fault condit...

Страница 933: ...L Channel 1 Input Filter Selects the filter value for the channel input The filter is disabled when the value is zero CH0FVAL Channel 0 Input Filter Selects the filter value for the channel input The...

Страница 934: ...n MODE WPDIS 1 0 Fault input filter is disabled 1 Fault input filter is enabled 5 FFLTR1EN Fault Input 1 Filter Enable Enables the filter for the fault input This field is write protected It can be wr...

Страница 935: ...only when MODE WPDIS 1 0 Fault input is disabled 1 Fault input is enabled 0 FAULT0EN Fault Input 0 Enable Enables the fault input This field is write protected It can be written only when MODE WPDIS 1...

Страница 936: ...0 0 0 FTMx_QDCTRL field descriptions Field Description 31 8 Reserved This field is reserved This read only field is reserved and always has the value 0 7 PHAFLTREN Phase A Input Filter Enable Enables...

Страница 937: ...used in the Quadrature Decoder mode 0 Phase A and phase B encoding mode 1 Count and direction encoding mode 2 QUADIR FTM Counter Direction In Quadrature Decoder Mode Indicates the counting direction 0...

Страница 938: ...10 GTBEOUT Global Time Base Output Enables the global time base signal generation to other FTMs 0 A global time base signal generation is disabled 1 A global time base signal generation is enabled 9 G...

Страница 939: ...R 0 W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R 0 FLT3POL FLT2POL FLT1POL FLT0POL W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 FTMx_FLTPOL field descriptions Field D...

Страница 940: ...ault 1 The fault input polarity is active low A 0 at the fault input indicates a fault 39 4 24 Synchronization Configuration FTMx_SYNCONF This register selects the PWM synchronization configuration SW...

Страница 941: ...has the value 0 12 SWSOC Software output control synchronization is activated by the software trigger 0 The software trigger does not activate the SWOCTRL register synchronization 1 The software trigg...

Страница 942: ...lock 1 CNTIN register is updated with its buffer value by the PWM synchronization 1 Reserved This field is reserved This read only field is reserved and always has the value 0 0 HWTRIGMODE Hardware Tr...

Страница 943: ...le 0 Inverting is disabled 1 Inverting is enabled 0 INV0EN Pair Channels 0 Inverting Enable 0 Inverting is disabled 1 Inverting is enabled 39 4 26 FTM Software Output Control FTMx_SWOCTRL This registe...

Страница 944: ...ware Output Control Value 0 The software output control forces 0 to the channel output 1 The software output control forces 1 to the channel output 12 CH4OCV Channel 4 Software Output Control Value 0...

Страница 945: ...rol Enable 0 The channel output is not affected by software output control 1 The channel output is affected by software output control 3 CH3OC Channel 3 Software Output Control Enable 0 The channel ou...

Страница 946: ...ed This read only field is reserved and always has the value 0 9 LDOK Load Enable Enables the loading of the MOD CNTIN and CV registers with the values of their write buffers 0 Loading updated values...

Страница 947: ...hing process 1 Include the channel in the matching process 1 CH1SEL Channel 1 Select 0 Do not include the channel in the matching process 1 Include the channel in the matching process 0 CH0SEL Channel...

Страница 948: ...CLKS 1 0 bits may be read or written at any time Disabling the FTM counter by writing 0 0 to the CLKS 1 0 bits does not affect the FTM counter value or other registers The fixed frequency clock is an...

Страница 949: ...is used by the channels either for input or output modes The FTM counter clock is the selected clock divided by the prescaler The FTM counter has these modes of operation Up counting Up down counting...

Страница 950: ...x period of FTM counter clock Figure 39 169 Example of FTM up and signed counting Table 39 243 FTM counting based on CNTIN value When Then CNTIN 0x0000 The FTM counting is equivalent to TPM up countin...

Страница 951: ...equirement Any values of CNTIN and MOD that do not satisfy this criteria can result in unpredictable behavior MOD CNTIN is a redundant condition In this case the FTM counter is always equal to MOD and...

Страница 952: ...e final value of the count The value of CNTIN is loaded into the FTM counter and the counter increments until the value of MOD is reached at which point the counter is decremented until it returns to...

Страница 953: ...n this case 0 CPWM is generated 39 5 3 3 Free running counter If FTMEN 0 and MOD 0x0000 or MOD 0xFFFF the FTM counter is a free running counter In this case the FTM counter runs free from 0x0000 throu...

Страница 954: ...the TOF bit is set The NUMTOF 4 0 bits define the number of times that the FTM counter overflow should occur before the TOF bit to be set If NUMTOF 4 0 0x00 then the TOF bit is set at each FTM counter...

Страница 955: ...input capture the FTMxCHn pin is an edge sensitive input ELSnB ELSnA control bits determine which edge falling or rising triggers input capture event Note that the maximum frequency for the channel in...

Страница 956: ...Filter for Input Capture mode The filter function is only available on channels 0 1 2 and 3 First the input signal is synchronized by the system clock Following synchronization the input signal enter...

Страница 957: ...ut The clock for the counter in the channel input filter is the system clock divided by 4 CHnFVAL 3 0 0010 binary value channel n input after the synchronizer counter filter output system clock divide...

Страница 958: ...lso are reset 39 5 5 Output Compare mode The Output Compare mode is selected when DECAPEN 0 COMBINE 0 CPWMS 0 and MSnB MSnA 0 1 In Output Compare mode the FTM can generate timed pulses with programmab...

Страница 959: ...de when the match clears the channel output channel n output CHnF bit TOF bit CNT MOD 0x0005 CnV 0x0003 counter overflow channel n match counter overflow channel n match counter overflow 0 1 2 3 4 5 0...

Страница 960: ...ches the value in the CnV register the CHnF bit is set and the channel n interrupt is generated if CHnIE 1 however the channel n output is not controlled by FTM If ELSnB ELSnA 1 0 then the channel n o...

Страница 961: ...different from zero the following EPWM signals can be generated 0 EPWM signal if CnV CNTIN EPWM signal between 0 and 100 if CNTIN CnV MOD 100 EPWM signal when CNTIN CnV or CnV MOD 39 5 7 Center Align...

Страница 962: ...B ELSnA 0 0 when the FTM counter reaches the value in the CnV register the CHnF bit is set and the channel n interrupt is generated if CHnIE 1 however the channel n output is not controlled by FTM If...

Страница 963: ...do not need to generate a 100 duty cycle CPWM signal This is not a significant limitation because the resulting period is much longer than required for normal applications The CPWM mode must not be us...

Страница 964: ...n the generation of the channels n and n 1 output However if ELSnB ELSnA 0 0 then the channel n output is not controlled by FTM and if ELS n 1 B ELS n 1 A 0 0 then the channel n 1 output is not contro...

Страница 965: ...LSnA X 1 MOD C n V CNTIN Figure 39 192 Channel n output if C n V CNTIN and CNTIN C n 1 V MOD FTM counter not fully 100 duty cycle channel n output with ELSnB ELSnA 1 0 not fully 0 duty cycle channel n...

Страница 966: ...C n V CNTIN and CNTIN C n 1 V MOD and C n 1 V is Almost Equal to MOD FTM counter 0 duty cycle channel n output with ELSnB ELSnA 1 0 100 duty cycle channel n output with ELSnB ELSnA X 1 C n V MOD CNTIN...

Страница 967: ...annel n output with ELSnB ELSnA 1 0 channel n output with ELSnB ELSnA X 1 100 duty cycle 0 duty cycle MOD Figure 39 197 Channel n output if C n V C n 1 V CNTIN FTM counter CNTIN channel n output with...

Страница 968: ...nnel n output if CNTIN C n V MOD and CNTIN C n 1 V MOD and C n V C n 1 V FTM counter C n V channel n output with ELSnB ELSnA 1 0 channel n output with ELSnB ELSnA X 1 0 duty cycle 100 duty cycle MOD C...

Страница 969: ...1 V CNTIN and CNTIN C n V MOD FTM counter channel n output with ELSnB ELSnA 1 0 channel n output with ELSnB ELSnA X 1 100 duty cycle 0 duty cycle MOD C n V C n 1 V CNTIN Figure 39 202 Channel n outpu...

Страница 970: ...Channel n output if C n 1 V MOD and CNTIN C n V MOD 39 5 8 1 Asymmetrical PWM In Combine mode the control of the PWM signal first edge when the channel n match occurs that is FTM counter C n V is ind...

Страница 971: ...annel n match Figure 39 205 Channel n 1 output in Complementary mode with ELSnB ELSnA 1 0 FTM counter channel n 1 match channel n 1 output with COMP 1 channel n 1 output with COMP 0 channel n output w...

Страница 972: ...ode is not CPWM then MOD register is updated after MOD register was written and the FTM counter changes from MOD to CNTIN If the FTM counter is at free running counter mode then this update occurs whe...

Страница 973: ...pdated by the C n V and C n 1 V register synchronization If the selected mode is not output compare and SYNCEN 1 then CnV register is updated by the C n V and C n 1 V register synchronization 39 5 11...

Страница 974: ...t occurs when 1 is written to the SYNC SWSYNC bit The SWSYNC bit is cleared when 0 is written to it or when the PWM synchronization initiated by the software event is completed If another software tri...

Страница 975: ...lue CNTIN If in Up down counting mode then the boundary cycle is defined as when the counter turns from down to up counting and when from up to down counting The following figure shows the boundary cy...

Страница 976: ...ue This synchronization is enabled if FTMEN 1 The MOD register synchronization can be done by either the enhanced PWM synchronization SYNCMODE 1 or the legacy PWM synchronization SYNCMODE 0 However it...

Страница 977: ...wait hardware trigger n HWTRIGMODE bit clear TRIGn bit wait the next selected loading point update MOD with its buffer value update MOD with its buffer value HWRSTCNT bit Figure 39 210 MOD register sy...

Страница 978: ...r is updated write 1 to TRIG0 bit TRIG0 bit trigger 0 event Figure 39 212 MOD synchronization with SYNCMODE 0 HWTRIGMODE 0 PWMSYNC 0 REINIT 0 and a hardware trigger was used If SYNCMODE 0 PWMSYNC 0 an...

Страница 979: ...SYNC 0 REINIT 1 and a hardware trigger was used If SYNCMODE 0 and PWMSYNC 1 then this synchronization is made on the next selected loading point after the software trigger event takes place The SWSYNC...

Страница 980: ...ization mechanism is the same as the MOD register synchronization However it is expected that the C n V and C n 1 V registers be synchronized only by the enhanced PWM synchronization SYNCMODE 1 39 5 1...

Страница 981: ...gger n TRIGn bit HWOM bit SWOM bit SWSYNC bit rising edge of system clock update OUTMASK with its buffer value hardware trigger OUTMASK is updated by software trigger OUTMASK is updated by hardware tr...

Страница 982: ...SWSYNC bit software trigger event Figure 39 217 OUTMASK synchronization with SYNCMODE 0 SYNCHOM 1 PWMSYNC 0 and software trigger was used system clock write 1 to TRIG0 bit TRIG0 bit trigger 0 event OU...

Страница 983: ...TRL register synchronization updates the INVCTRL register with its buffer value The INVCTRL register can be updated at each rising edge of system clock INVC 0 or by the enhanced PWM synchronization IN...

Страница 984: ...bit rising edge of system clock update INVCTRL with its buffer value update INVCTRL with its buffer value HWINVC bit TRIGn bit wait hardware trigger n update INVCTRL with its buffer value HWTRIGMODE b...

Страница 985: ...CTRL is updated by hardware trigger enhanced PWM synchronization update SWOCTRL register by PWM synchronization update SWOCTRL register at each rising edge of system clock yes 0 1 0 0 no 1 SWOC bit SY...

Страница 986: ...l output from transitioning to 1 If no deadtime insertion is selected then the channel n 1 transitions to logical value 1 immediately after the synchronization event occurs synchronization event chann...

Страница 987: ...e trigger TRIGn bit 0 0 0 0 0 1 Figure 39 223 FTM counter synchronization flowchart In the case of legacy PWM synchronization the FTM counter synchronization depends on REINIT and PWMSYNC bits accordi...

Страница 988: ...FTM counter synchronization with SYNCMODE 0 HWTRIGMODE 0 REINIT 1 PWMSYNC 0 and a hardware trigger was used If SYNCMODE 0 REINIT 1 and PWMSYNC 1 then this synchronization is made on the next enabled...

Страница 989: ...ed the channel n output behavior is changed to force high at the beginning of the PWM period force low at the channel n match and force high at the channel n 1 match See the following figure NOTE chan...

Страница 990: ...INVCTRL register synchronization INV m bit channel n output after the inverting channel n 1 output after the inverting INV m bit selects the inverting to the pair channels n and n 1 channel n output b...

Страница 991: ...OCV 1 and CH n 1 OCV 0 SWOCTRL register synchronization SWOCTRL register synchronization write to SWOCTRL register write to SWOCTRL register Figure 39 229 Example of software output control in Combin...

Страница 992: ...he DTPS 1 0 bits define the prescaler for the system clock and the DTVAL 5 0 bits define the deadtime modulo that is the number of the deadtime prescaler clocks The deadtime delay insertion ensures th...

Страница 993: ...39 230 Deadtime insertion with ELSnB ELSnA 1 0 POL n 0 and POL n 1 0 FTM counter channel n 1 match channel n output before deadtime insertion channel n 1 output before deadtime insertion channel n ou...

Страница 994: ...Although in most cases the deadtime delay is not comparable to channels n and n 1 duty cycle the following figures show examples where the deadtime delay is comparable to the duty cycle FTM counter ch...

Страница 995: ...k The output mask can be used to force channels output to their inactive state through software For example to control a BLDC motor Any write to the OUTMASK register updates its write buffer The OUTMA...

Страница 996: ...e 39 5 16 Fault control The fault control is enabled if FAULTM 1 0 0 0 FTM can have up to four fault inputs FAULTnEN bit where n 0 1 2 3 enables the fault input n and FFLTRnEN bit enables the fault in...

Страница 997: ...0 and FAULTnEN 1 then the fault input n signal is delayed 3 FFVAL 3 0 rising edges of the system clock that is the FAULTFn bit is set 4 FFVAL 3 0 rising edges of the system clock after a rising edge o...

Страница 998: ...Automatic fault clearing If the automatic fault clearing is selected FAULTM 1 0 1 1 then the channels output disabled by fault control is again enabled when the fault input signal FAULTIN returns to z...

Страница 999: ...he fault control with manual fault clearing and POLn 0 NOTE Figure 39 238 Fault control with manual fault clearing 39 5 16 3 Fault inputs polarity control The FLTjPOL bit selects the fault input j pol...

Страница 1000: ...l n 1 Output 0 0 is forced to zero is forced to zero 0 1 is forced to zero is forced to one 1 0 is forced to one is forced to zero 1 1 is forced to one is forced to one The following table shows the v...

Страница 1001: ...tput signal CH n OI CH n 1 OI COMP m INV m EN CH n OC CH n OCV CH n 1 OC CH n 1 OCV DTEN m CH n OM CH n 1 OM FAULTEN m POL n POL n 1 Figure 39 239 Priority of the features used at the generation of ch...

Страница 1002: ...RIG 1 CH4TRIG 1 CH5TRIG 1 the beginning of new PWM cycles MOD FTM counter C5V FTM counter C4V FTM counter C3V FTM counter C2V FTM counter C1V FTM counter C0V CNTIN a b c d Figure 39 240 Channel match...

Страница 1003: ...unting achieves the CNTIN register value CPWMS 0 0x04 0x05 0x06 0x00 0x01 0x02 0x03 0x04 0x05 0x06 initialization trigger write to CNT FTM counter system clock CNTIN 0x0000 MOD 0x000F Figure 39 242 In...

Страница 1004: ...24 0x23 0x22 0x21 0x20 initialization trigger Figure 39 245 Initialization trigger is generated if the channel n is in Input Capture mode ICRST 1 and the selected input capture event occurs in the cha...

Страница 1005: ...1 CPWMS 0 CNTIN 0x0000 and MOD 0xFFFF FTM channel n configuration input capture mode DECAPEN 0 COMBINE 0 and MSnB MSnA 0 0 0x0300 0x78AC set CAPTEST clear CAPTEST write 0x78AC 0x1056 0x1053 0x1055 0x1...

Страница 1006: ...5 24 Dual Edge Capture mode The Dual Edge Capture mode is selected if DECAPEN 1 This mode allows to measure a pulse width or period of the signal on the input of channel n of a channel pair The channe...

Страница 1007: ...edge by channel n 1 is detected at channel n input In this mode a coherency mechanism ensures coherent data when the C n V and C n 1 V registers are read The only requirement is that C n V must be rea...

Страница 1008: ...The latest captured values are always available in these registers even after the DECAP bit is cleared In this mode it is possible to clear only the CH n 1 F bit Therefore when the CH n 1 F bit is se...

Страница 1009: ...4 9 11 12 13 14 9 10 7 8 15 16 17 18 19 20 21 22 23 24 25 26 27 28 15 16 19 20 22 24 Problem 1 channel n input 1 set DECAP not clear CH n F and clear CH n 1 F Problem 2 channel n input 1 set DECAP no...

Страница 1010: ...F bit clear CH n F 1 8 12 22 24 11 19 21 23 Figure 39 249 Dual Edge Capture Continuous mode for positive polarity pulse width measurement 39 5 24 4 Period measurement If the channels n and n 1 are con...

Страница 1011: ...C n 1 V registers are ready for reading channel n input after the filter DECAPEN bit C n 1 V FTM counter clear CH n 1 F problem 2 2 1 2 3 channel input DECAP bit set DECAPEN set DECAP 5 6 7 8 10 3 4 6...

Страница 1012: ...FTM counter clear CH n 1 F 2 1 2 3 channel input DECAP bit set DECAPEN set DECAP 5 6 7 8 10 3 4 6 5 Note The commands set DECAPEN set DECAP clear CH n F and clear CH n 1 F are made by the user 4 9 11...

Страница 1013: ...ansferred to C n 1 V register when the C n V register is read In the following figure the read of C n V returns the FTM counter value when the event 1 occurred and the read of C n 1 V returns the FTM...

Страница 1014: ...ts in FILTER0 register The phase B input filter is enabled by PHBFLTREN bit and this filter s value is defined by CH1FVAL 3 0 bits CH n 1 FVAL 3 0 bits in FILTER0 register Except for CH0FVAL 3 0 and C...

Страница 1015: ...and B signals define the counting rate The FTM counter is updated when there is an edge either at the phase A or phase B signals If PHAPOL 0 and PHBPOL 0 then the FTM counter increment happens when t...

Страница 1016: ...M counter overflow occurred phase A phase B FTM counter increment decrement FTM counter MOD CNTIN 0x0000 Time 1 1 1 1 1 1 1 set TOF set TOFDIR set TOF set TOFDIR 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Figu...

Страница 1017: ...ature Decoder boundary conditions The following figures show the FTM counter responding to motor jittering typical in motor position control applications phase A phase B FTM counter MOD CNTIN 0x0000 T...

Страница 1018: ...void these oscillations 39 5 26 BDM mode When the chip is in BDM mode the BDMMODE 1 0 bits select the behavior of the FTM counter the CH n F bit the channels output and the writes to the MOD CNTIN and...

Страница 1019: ...hannels outputs are updated to the initial value except for channels in Output Compare mode In the channels outputs initialization the channel n output is forced to the CH n OI bit value when the valu...

Страница 1020: ...EL 0 CH4SEL 1 CH5SEL 0 CH6SEL 1 CH7SEL 0 f LDOK 1 CH0SEL 1 CH1SEL 1 CH2SEL 1 CH3SEL 1 CH4SEL 1 CH5SEL 1 CH6SEL 1 CH7SEL 1 d e f b a FTM counter MOD FTM counter C7V FTM counter C6V FTM counter C5V FTM...

Страница 1021: ...ilable on channel j output If CHjIE 1 then the channel j interrupt is generated when the channel j match occurs At the intermediate load neither the channels outputs nor the FTM counter are changed So...

Страница 1022: ...les the configuration of each FTM module should guarantee that its FTM counter starts counting as soon as the gtb_in signal is 1 The GTB feature does not provide continuous synchronization of FTM coun...

Страница 1023: ...r its value is updated to zero and the pins are not controlled by FTM See the table in the description of CnSC register After the reset the FTM should be configurated item 2 It is necessary to define...

Страница 1024: ...ere is a write to CNT register item 3 In this case use the software output control Software output control or the initialization Initialization to update the channel output to the selected value item...

Страница 1025: ...e in the safe value Re Configuration FTM counter and channels to generation of periodic signals Disable the clock If the selected mode is Quadrature Decoder then disable this mode Examples of the re c...

Страница 1026: ...is necessary SWSOC 0 1 and SWOC 0 1 SW Synchronization for Inverting if it is necessary SWINVC 0 1 and INVC 0 1 SW Synchronization for SWOM always SWOM 1 No enable the SW Synchronization for write buf...

Страница 1027: ...40 1 2 PIT Trigger Output Assignments The PIT timer channels are used to trigger other peripheral events such as ADC acquisitions or DMA transfers On this device the following assignments have been m...

Страница 1028: ...er 1 PIT registers Peripheral bus load_value PIT Triggers Peripheral bus clock Interrupts Figure 40 1 Block diagram of the PIT NOTE See the chip specific PIT information for the number of PIT channels...

Страница 1029: ...egister PIT_TFLG0 32 R W 0000_0000h 40 4 5 1033 4003_7110 Timer Load Value Register PIT_LDVAL1 32 R W 0000_0000h 40 4 2 1031 4003_7114 Current Timer Value Register PIT_CVAL1 32 R 0000_0000h 40 4 3 103...

Страница 1030: ...DIS FRZ W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 PIT_MCR field descriptions Field Description 31 3 Reserved This field is reserved This read only field is reserved and always has the value 0 2 Reserved...

Страница 1031: ...will count down until it reaches 0 then it will generate an interrupt and load this register value again Writing a new value to this register will not restart the timer instead the value will be loade...

Страница 1032: ...tions Field Description 31 3 Reserved This field is reserved This read only field is reserved and always has the value 0 2 CHN Chain Mode When activated Timer n 1 needs to expire before timer n can de...

Страница 1033: ...value 0 0 TIF Timer Interrupt Flag Sets to 1 at the end of the timer period Writing 1 to this flag clears it Writing 0 has no effect If enabled or when TCTRLn TIE 1 TIF causes an interrupt request 0 T...

Страница 1034: ...imer with TCTRLn TEN See the following figure p1 Timer enabled Disable timer p1 p1 Start value p1 Trigger event p1 Re enable timer Figure 40 23 Stopping and starting a timer The counter period of a ru...

Страница 1035: ...rrupts can be enabled by setting TCTRLn TIE TFLGn TIF are set to 1 when a timeout occurs on the associated timer and are cleared to 0 by writing a 1 to the corresponding TFLGn TIF 40 5 3 Chained timer...

Страница 1036: ...EN Timer 3 shall be used only for triggering Therefore Timer 3 is started by writing a 1 to TCTRL3 TEN TCTRL3 TIE stays at 0 The following example code matches the described setup turn on PIT PIT_MCR...

Страница 1037: ...enabled by setting TCTRL2 TIE the Chain mode is activated by setting TCTRL2 CHN and the timer is started by writing a 1 to TCTRL2 TEN TCTRL1 TEN needs to be set and TCTRL1 CHN and TCTRL1 TIE are clear...

Страница 1038: ...Example configuration for chained timers KV4x Reference Manual Rev 2 02 2015 1038 Preliminary Freescale Semiconductor Inc...

Страница 1039: ...ntended incremenatal position sensor for motor control The following table shows how these modules are configured This adheres to Kinetis K series FTM instantiations Table 41 1 ENC Signal Assignment E...

Страница 1040: ...m count frequency equals the peripheral clock rate Position counter can be initialized by software or external events Preloadable 16 bit revolution counter Inputs can be connected to a general purpose...

Страница 1041: ...ure Decoder Block Diagram 41 2 3 System Block Diagram The following figure shows the block diagram of the quadrature decoder module integrated into an SoC XBAR PHASEA PHASEB INDEX HOME FILTER TIMER 4...

Страница 1042: ...osition difference counter 41 2 6 Position Counter The 32 bit position counter calculates up or down on every count pulse generated by the difference of PHASEA and PHASEB This counter acts as an integ...

Страница 1043: ...r is read the position difference of the counter s contents is copied into the position difference hold register POSDH and the position difference counter is cleared 41 2 9 Revolution Counter The 16 b...

Страница 1044: ...ting in the positive direction PHASEA is the trailing phase for a shaft rotating in the negative direction It can also be used as the single input when the quadrature decoder module is used as a singl...

Страница 1045: ...has reached a defined home position This general purpose signal can also be connected to the timer module via the Crossbar module XBAR 41 3 5 Trigger Input TRIGGER The TRIGGER input can be used to cle...

Страница 1046: ...d Register ENC_REVH 16 R 0000h 41 4 7 1052 4005_500E Upper Position Counter Register ENC_UPOS 16 R W 0000h 41 4 8 1052 4005_5010 Lower Position Counter Register ENC_LPOS 16 R W 0000h 41 4 9 1053 4005_...

Страница 1047: ...Disable HOME interrupts 1 Enable HOME interrupts 13 HIP Enable HOME to Initialize Position Counters UPOS and LPOS This read write bit allows the position counter to be initialized by the HOME signal 0...

Страница 1048: ...red 1 INDEX pulse interrupt has occurred 7 XIE INDEX Pulse Interrupt Enable This read write bit enables index interrupts 0 INDEX pulse interrupt is disabled 1 INDEX pulse interrupt is enabled 6 XIP IN...

Страница 1049: ...than the period of the expected noise This way a noise spike will only corrupt one sample The FILT_CNT value should be chosen to reduce the probablility of noisy samples causing an incorrect transiti...

Страница 1050: ...A value of 0x0 represents 3 samples A value of 0x7 represents 10 samples The value of FILT_CNT affects the input latency FILT_PER Input Filter Sample Period These bits represent the sampling period in...

Страница 1051: ...unt pulse This counter acts as a differentiator whose count value is proportional to the change in position since the last time the position counter was read When the position register the position di...

Страница 1052: ...t 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ENC_REVH field descriptions Field Description REVH This read only register contains a snapshot of the value of the REV register 41 4 8 Upper Position Counter Register...

Страница 1053: ...005_5012h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read POSH 31 16 Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ENC_UPOSH field descriptions Field Description POSH 31 16 This read only register contai...

Страница 1054: ...ize the upper half of the position counter UPOS 41 4 13 Lower Initialization Register ENC_LINIT Address 4005_5000h base 18h offset 4005_5018h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read INIT 15 0 W...

Страница 1055: ...0 0 0 0 Bit 7 6 5 4 3 2 1 0 Read FPHA FPHB FIND FHOM PHA PHB INDEX HOME Write Reset 0 0 0 0 0 0 0 0 ENC_IMR field descriptions Field Description 15 8 Reserved This field is reserved This read only fie...

Страница 1056: ...e 1Ch offset 4005_501Ch Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read TEN TCE QDN TEST_PERIOD TEST_COUNT Write Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ENC_TST field descriptions Field Description 15 TE...

Страница 1057: ...B Change Interrupt Enable This read write bit enables simultaneous PHASEA and PHASEB change interrupts based on SABIRQ being set 0 Simultaneous PHASEA and PHASEB change interrupt disabled 1 Simultaneo...

Страница 1058: ...ount Direction Flag This read only flag is used to indicate the direction of the last count 0 Last count was in the down direction 1 Last count was in the up direction 2 MOD Enable Modulo Counting Whe...

Страница 1059: ...0 ENC_UMOD field descriptions Field Description MOD 31 16 This read write register contains the upper most significant half of the modulus register MOD acts as the upper bound during modulo counting...

Страница 1060: ...ase 26h offset 4005_5026h Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Read COMP 15 0 Write Reset 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ENC_LCOMP field descriptions Field Description COMP 15 0 This read write...

Страница 1061: ...culating speed For applications with slow motor speeds and low line count quadrature encoders the timer module enables high resolution velocity measurements by measuring the time period between quadra...

Страница 1062: ...er CTRL XIP or CTRL HIP can enable the position counter to be initialized in response to a HOME or INDEX signal transition 41 6 Resets There are no special requirements This module is reset by any sys...

Страница 1063: ...SR PCS Prescaler glitch filter clock number Chip clock 00 0 MCGIRCLK internal reference clock not available in VLPS VLLS modes 01 1 LPO 1 kHz clock not available in VLLS0 mode 10 2 ERCLK32K secondary...

Страница 1064: ...us wakeup from any low power mode Hardware trigger output Counter supports free running mode or reset on compare Configurable clock source for prescaler glitch filter Configurable input source for pul...

Страница 1065: ...can select one of the input pins to be used in Pulse Counter mode State meaning Assertion If configured for pulse counter mode with active high input then assertion causes the CNR to increment Deasse...

Страница 1066: ...ed This read only field is reserved and always has the value 0 7 TCF Timer Compare Flag TCF is set when the LPTMR is enabled and the CNR equals the CMR and increments TCF is cleared when the LPTMR is...

Страница 1067: ...t whenever TCF is set 1 CNR is reset on overflow 1 TMS Timer Mode Select Configures the mode of the LPTMR TMS must be altered only when the LPTMR is disabled 0 Time Counter mode 1 Pulse Counter mode 0...

Страница 1068: ...clock by 1024 glitch filter recognizes change on input pin after 512 rising clock edges 1010 Prescaler divides the prescaler clock by 2048 glitch filter recognizes change on input pin after 1024 risi...

Страница 1069: ...When the LPTMR is enabled and the CNR equals the value in the CMR and increments TCF is set and the hardware trigger asserts until the next time the CNR increments If the CMR is 0 the hardware trigger...

Страница 1070: ...the four clocks The clock source must be enabled before the LPTMR is enabled NOTE The clock source selected need to be configured to remain enabled in low power modes otherwise the LPTMR will not ope...

Страница 1071: ...filter directly clocks the CNR When the LPTMR is first enabled the output of the glitch filter is asserted that is logic 1 for active high and logic 0 for active low The following table shows the chan...

Страница 1072: ...rescaler output in Time Counter mode with prescaler enabled Input source assertion in Pulse Counter mode with glitch filter bypassed Glitch filter output in Pulse Counter mode with glitch filter enabl...

Страница 1073: ...will assert on each compare and deassert on the following increment of the CNR 42 5 7 LPTMR interrupt The LPTMR interrupt is generated whenever CSR TIE and CSR TCF are set CSR TCF is cleared by disab...

Страница 1074: ...Functional description KV4x Reference Manual Rev 2 02 2015 1074 Preliminary Freescale Semiconductor Inc...

Страница 1075: ...ed CAN bus Routing of the wakeup source to either the synchronous Doze or asynchronous Stop wakeup path within the FlexCAN module The reference clock for the glitch filter is a 4 MHz clock derived fro...

Страница 1076: ...CAN 2 0 B protocol specifications A general block diagram is shown in the following figure which describes the main subblocks implemented in the FlexCAN module including one associated memory for stor...

Страница 1077: ...ield Real time processing Reliable operation in the EMI environment of a vehicle Cost effectiveness Required bandwidth The FlexCAN module is a full implementation of the CAN protocol specification the...

Страница 1078: ...ures The FlexCAN module includes these distinctive features Full implementation of the CAN protocol specification Version 2 0 B Standard data frames Extended data frames Zero to eight bytes data lengt...

Страница 1079: ...us activity Remote request frames may be handled automatically or by software CAN bit time settings and configuration bits can only be written in Freeze mode Tx mailbox status Lowest priority buffer o...

Страница 1080: ...output of the transmitter is internally fed back to the receiver input The Rx CAN input pin is ignored and the Tx CAN output goes to the recessive state logic 1 FlexCAN behaves as it normally does wh...

Страница 1081: ...re information Stop mode This low power mode is entered when Stop mode is requested at MCU level and the LPM_ACK bit in the MCR Register is asserted by the FlexCAN When in Stop Mode the module puts it...

Страница 1082: ...red to have either Supervisor or Unrestricted access by programming the SUPV field in the MCR register These registers are identified as S U in the Access column of Table 43 2 Table 43 2 Register acce...

Страница 1083: ...4 4 1096 4002_4010 Rx Mailboxes Global Mask Register CAN0_RXMGMASK 32 R W Undefined 43 4 5 1097 4002_4014 Rx 14 Mask register CAN0_RX14MASK 32 R W Undefined 43 4 6 1098 4002_4018 Rx 15 Mask register...

Страница 1084: ...ual Mask Registers CAN0_RXIMR10 32 R W Undefined 43 4 18 1120 4002_48AC Rx Individual Mask Registers CAN0_RXIMR11 32 R W Undefined 43 4 18 1120 4002_48B0 Rx Individual Mask Registers CAN0_RXIMR12 32 R...

Страница 1085: ...egisters CAN1_RXIMR2 32 R W Undefined 43 4 18 1120 4002_588C Rx Individual Mask Registers CAN1_RXIMR3 32 R W Undefined 43 4 18 1120 4002_5890 Rx Individual Mask Registers CAN1_RXIMR4 32 R W Undefined...

Страница 1086: ...e Section page 4002_58B8 Rx Individual Mask Registers CAN1_RXIMR14 32 R W Undefined 43 4 18 1120 4002_58BC Rx Individual Mask Registers CAN1_RXIMR15 32 R W Undefined 43 4 18 1120 Memory map register d...

Страница 1087: ...onfiguration Address Base address 0h offset Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R MDIS FRZ RFEN HALT NOTRDY WAKMSK SOFTRST FRZACK SUPV SLFWAK WRNEN LPMACK WAKSRC DOZE SRXDIS IRMQ W Res...

Страница 1088: ...detected and NCEFAFRZ bit in CAN_MECR register is asserted 0 Not enabled to enter Freeze mode 1 Enabled to enter Freeze mode 29 RFEN Rx FIFO Enable This bit controls whether the Rx FIFO feature is ena...

Страница 1089: ...follow a request acknowledge procedure across clock domains it may take some time to fully propagate its effect The SOFTRST bit remains asserted while reset is pending and is automatically negated whe...

Страница 1090: ...nables the generation of the TWRNINT and RWRNINT flags in the Error and Status Register 1 ESR1 If WRNEN is negated the TWRNINT and RWRNINT flags will always be zero independent of the values of the er...

Страница 1091: ...hardware in other modes 0 Individual Rx masking and queue feature are disabled For backward compatibility with legacy applications the reading of C S word locks the MB even if it is EMPTY 1 Individua...

Страница 1092: ...One full ID standard and extended per ID Filter Table element 01 Format B Two full standard IDs or two partial 14 bit standard and extended IDs per ID Filter Table element 10 Format C Four partial 8...

Страница 1093: ...fields of CAN_CTRL1 become read only The contents of this register are not affected by soft reset NOTE The CAN bit variables in CAN_CTRL1 and in CAN_CBT are stored in the same register Address Base a...

Страница 1094: ...by hardware in other modes Phase Buffer Segment 2 PSEG2 1 Time Quanta 15 BOFFMSK Bus Off Interrupt Mask This bit provides a mask for the Bus Off Interrupt BOFFINT in CAN_ESR1 register 0 Bus Off interr...

Страница 1095: ...de of CAN bits at the Rx input It can be written in Freeze mode only because it is blocked by hardware in other modes NOTE For proper operation to assert SMP it is necessary to guarantee a minimum val...

Страница 1096: ...ode transmission is disabled all error counters described in CAN_ECR register are frozen and the module operates in a CAN Error Passive mode Only messages acknowledged by another CAN station will be r...

Страница 1097: ...in the first Mailbox then the write value is discarded Reading this register affects the Mailbox Unlocking procedure see Section Mailbox Lock Mechanism Address Base address 8h offset Bit 31 30 29 28 2...

Страница 1098: ...G bits mask each Mailbox filter field SMB RTR 1 CAN_CTRL2 RRS CAN_CTRL2 EACEN Mailbox filter fields MB RTR MB IDE MB ID Reserved 0 0 note 2 note 3 MG 28 0 MG 31 29 0 1 MG 31 MG 30 MG 28 0 MG 29 1 0 MG...

Страница 1099: ...n the filter is don t care 1 The corresponding bit in the filter is checked 43 4 7 Rx 15 Mask register CANx_RX15MASK This register is located in RAM RX15MASK is provided for legacy application support...

Страница 1100: ...eflect Error Passive state If the FlexCAN state is Error Passive and either TXERRCNT or RXERRCNT decrements to a value less than or equal to 127 while the other already satisfies this condition the FL...

Страница 1101: ...23 16 Reserved This field is reserved 15 8 RXERRCNT Receive Error Counter Receive Error Counter for all errors detected in received messages The RXERRCNT counter is read only except in Freeze mode wh...

Страница 1102: ...errupt request Write 1 to clear the ERR_OVR bit if it is set Starting from all error flags cleared a first error event sets the ERRINT provided the corresponding mask bit is asserted If other error ev...

Страница 1103: ...Reserved Reserved 0 Reserved Reserved Reserved 0 ERROVR Reserved BOFFDONEINT SYNCH TWRNINT RWRNINT W w1c w1c w1c w1c Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Chapter 43 Flex Controller Area Network Flex...

Страница 1104: ...d only field is reserved and always has the value 0 28 Reserved This field is reserved 27 Reserved This field is reserved 26 Reserved This field is reserved 25 22 Reserved This field is reserved This...

Страница 1105: ...ked CPU must clear this flag before disabling the bit Otherwise it will be set when the WRNEN is set again Writing 0 has no effect This flag is not generated during Bus Off state This bit is not updat...

Страница 1106: ...bit 0 No such occurrence 1 A Form Error occurred since last read of this register 10 STFERR Stuffing Error This bit indicates that a Stuffing Error has been detected by the receiver node 0 No such oc...

Страница 1107: ...terrupt This bit is set when FlexCAN enters Bus Off state If the corresponding mask bit in the Control Register 1 CAN_CTRL1 BOFFMSK is set an interrupt is generated to the CPU This bit is cleared by w...

Страница 1108: ...ield Description BUF31TO0M Buffer MB i Mask Each bit enables or disables the corresponding FlexCAN Message Buffer Interrupt for MB31 to MB0 NOTE Setting or clearing a bit in the CAN_IMASK1 Register ca...

Страница 1109: ...DMA feature for Rx FIFO enabled the function of the 8 least significant interrupt flags BUF7I BUF0I are changed to support the DMA operation BUF7I and BUF6I are not used as well as BUF4I to BUF1I BUF...

Страница 1110: ...1 1 MB7 completed transmission reception when MCR RFEN 0 or Rx FIFO overflow when MCR RFEN 1 6 BUF6I Buffer MB6 Interrupt Or Rx FIFO Warning When the RFEN bit in the CAN_MCR register is cleared Rx FI...

Страница 1111: ...hen MCR RFEN 0 1 The corresponding buffer has successfully completed transmission or reception when MCR RFEN 0 0 BUF0I Buffer MB0 Interrupt Or Clear FIFO bit When the RFEN bit in MCR is cleared Rx FIF...

Страница 1112: ...ield defines the number of Rx FIFO filters as shown in the following table The maximum selectable number of filters is determined by the MCU This field can only be written in Freeze mode as it is bloc...

Страница 1113: ...6 39 0x5 48 MB 0 17 MB 18 63 Elements 0 17 Elements 18 47 0x6 56 MB 0 19 MB 20 63 Elements 0 19 Elements 20 55 0x7 64 MB 0 21 MB 22 63 Elements 0 21 Elements 22 63 0x8 72 MB 0 23 MB 24 63 Elements 0 2...

Страница 1114: ...bits within Rx Mailboxes filters with their corresponding bits in the incoming frame by the matching process This bit does not affect matching for Rx FIFO This bit can be written only in Freeze mode b...

Страница 1115: ...erved This field is reserved This read only field is reserved and always has the value 0 14 VPS Valid Priority Status This bit indicates whether CAN_ESR2 IMB and CAN_ESR2 LPTM contents are currently v...

Страница 1116: ...s the value 0 43 4 14 CRC Register CANx_CRCR This register provides information about the CRC of transmitted messages This register is updated at the same time the Tx Interrupt Flag is asserted Addres...

Страница 1117: ...rfect alignment The following table shows how the FGM bits correspond to each IDAF field Rx FIFO ID Filter Table Elements Format CAN_MCR ID AM Identifier Acceptance Filter Fields RTR IDE RXIDA RXIDB 1...

Страница 1118: ...has the value 0 IDHIT Identifier Acceptance Filter Hit Indicator This field indicates which Identifier Acceptance Filter was hit by the received message that is in the output of the Rx FIFO If multipl...

Страница 1119: ...BT BTF bit is asserted otherwise it has no effect It extends the CAN_CTRL1 PRESDIV value range The Sclock period defines the time quantum of the CAN protocol For the reset value the Sclock frequency i...

Страница 1120: ...e range This field can be written only in Freeze mode because it is blocked by hardware in other modes Phase Buffer Segment 1 EPSEG2 1 Time Quanta Time Quantum one Sclock period 43 4 18 Rx Individual...

Страница 1121: ...ng bit in the filter is checked 43 4 53 Message buffer structure The message buffer structure used by the FlexCAN module is represented in the following figure Both Extended 29 bit identifier and Stan...

Страница 1122: ...field is automatically updated to FULL 0b0010 FULL MB is full FULL Yes FULL The act of reading the C S word followed by unlocking the MB SRV does not make the code return to EMPTY It remains FULL If...

Страница 1123: ...ANSWER 0b1110 0 A Remote Answer was configured to recognize a remote request frame received After that an MB is set to transmit a response frame The code is automatically changed to TANSWER 0b1110 See...

Страница 1124: ...NACTIVE MB does not participate in arbitration process 0b1001 ABORT MB is aborted ABORT MB does not participate in arbitration process 0b1100 DATA MB is a Tx Data Frame MB RTR must be 0 DATA 0 INACTIV...

Страница 1125: ...andard or extended 1 Frame format is extended 0 Frame format is standard RTR Remote Transmission Request This bit affects the behavior of remote frames and is part of the reception filter See Table 43...

Страница 1126: ...This 3 bit field is used only when LPRIO_EN bit is set in CAN_MCR and it only makes sense for Tx mailboxes These bits are not transmitted They are appended to the regular ID to define the transmissio...

Страница 1127: ...tains the ID filter table configurable from 8 to 40 table elements that specifies filtering criteria for accepting frames into the FIFO Out of reset the ID filter table flexible memory area defaults t...

Страница 1128: ...nded 29 1 B RTR IDE RXIDB_0 standard 29 19 extended 29 16 RTR IDE RXIDB_1 standard 13 3 extended 13 0 C RXIDC_0 std ext 31 24 RXIDC_1 std ext 23 16 RXIDC_2 std ext 15 8 RXIDC_3 std ext 7 0 Unimplement...

Страница 1129: ...cription The FlexCAN module is a CAN protocol engine with a very flexible mailbox system for transmitting and receiving CAN frames The mailbox system is composed by a set of Message Buffers MB that st...

Страница 1130: ...aborted or transmitted see Transmission abort mechanism If backwards compatibility is desired CAN_MCR AEN bit is negated just write the INACTIVE code 0b1000 to the CODE field to inactivate the MB but...

Страница 1131: ...or Delimiter field of a CAN frame During the Overload Delimiter field of a CAN frame When the winner is inactivated and the CAN bus has still not reached the first bit of the Intermission field When t...

Страница 1132: ...values the Mailbox with the lowest number is the arbitration winner The composition of the arbitration value depends on CAN_MCR LPRIOEN bit setting 43 5 2 2 1 Local Priority disabled If CAN_MCR LPRIOE...

Страница 1133: ...After the MB is transmitted and the corresponding IFLAG bit is cleared by the CPU FlexCAN enters in Freeze mode or Bus Off FlexCAN loses the bus arbitration or there is an error during the transmissio...

Страница 1134: ...ror or Overload flag in the bus Low Power or Freeze mode request in Idle state Arbitration is considered pending as described below It was not possible to finish arbitration process in time C S write...

Страница 1135: ...r CPU servicing read the frame received in an Mailbox is using the following procedure 1 Read the Control and Status word of that Mailbox 2 Check if the BUSY bit is deasserted indicating that the Mail...

Страница 1136: ...during Freeze mode see Rx FIFO Upon receiving the Frames Available in Rx FIFO interrupt see the description of the BUF5I bit Frames available in Rx FIFO bit in the CAN_IFLAG1 register the CPU should s...

Страница 1137: ...the CRC field of the frame If the received frame is a data frame with DLC field different than zero the start point is the DATA field of the frame If a matching ID is found in the FIFO table or in one...

Страница 1138: ...ion structure is free to receive when any of the following conditions is satisfied The CODE field of the Mailbox is EMPTY The CODE field of the Mailbox is either FULL or OVERRUN and it has already bee...

Страница 1139: ...ailbox If CAN_MCR IRMQ bit is asserted the matching winner is the Rx FIFO if it is a free to receive matched structure otherwise the matching winner is the last non free to receive matched Mailbox See...

Страница 1140: ...free to receive 5 Matched in FIFO None means that the frame has not matched any filter in FIFO It is as if the FIFO didn t exist CAN_CTRL2 RFEN 0 6 Matched in FIFO NotFull means that the frame has mat...

Страница 1141: ...bit is asserted then the corresponding ID bit is compared If the mask bit is negated the corresponding ID bit is a don t care Note that the Individual Mask Registers are implemented in RAM so they are...

Страница 1142: ...rted Any CAN protocol error is detected Note that the pending move in is not cancelled if the module enters Freeze or Low Power mode It only stays on hold waiting for exiting Freeze and Low Power mode...

Страница 1143: ...est the abortion of a pending transmission A feedback mechanism is provided to inform the CPU if the transmission was aborted or if the frame could not be aborted and was transmitted instead Two prima...

Страница 1144: ...de in this case the MB is inactivated and not aborted because the transmission did not start yet One Mailbox is only aborted when the abort request is captured and kept pending until one of the previo...

Страница 1145: ...ers that are part of the Rx FIFO cannot be inactivated There is no write protection on the FIFO region by FlexCAN CPU must maintain data coherency in the FIFO region when RFEN is asserted 43 5 6 3 Mai...

Страница 1146: ...bit on the CODE field is asserted If the CPU reads the Control and Status word and finds out that the BUSY bit is set it should defer accessing the MB until the BUSY bit is negated Note If the BUSY bi...

Страница 1147: ...ise the flag remains negated The output of the FIFO is only valid whilst the CAN_IFLAG1 BUF5I is asserted The CAN_IFLAG1 BUF6I Rx FIFO Warning is asserted when the number of unread messages within the...

Страница 1148: ...43 5 7 1 Rx FIFO under DMA Operation The receive only FIFO can support DMA this feature is enabled by asserting both the CAN_MCR RFEN and CAN_MCR DMA bits The reset value of CAN_MCR DMA bit is zero to...

Страница 1149: ...tion of DMA requests 43 5 7 2 Clear FIFO Operation When CAN_MCR RFEN is asserted the clear FIFO operation is a feature used to empty FIFO contents With CAN_MCR RFEN asserted the Clear FIFO occurs when...

Страница 1150: ...ly enters the internal arbitration process but is considered as a normal Tx mailbox with no higher priority The data length of this frame is independent of the DLC field in the remote frame that initi...

Страница 1151: ...e The Free Running Timer is not incremented during Disable Doze Stop and Freeze modes It can be reset upon a specific frame reception enabling network time synchronization See the TSYN description in...

Страница 1152: ...veform A time quantum Tq is the atomic unit of time handled by the CAN engine Tq fCANCLK PRESDIV 1 The bit rate which defines the rate the CAN message is either received or transmitted is given by the...

Страница 1153: ...NOTE The bit time defined by the above time segments must not be smaller than 5 time quanta For bit time calculations use an Information Processing Time IPT of 2 which is the value implemented in the...

Страница 1154: ...12 4 1 4 6 13 5 1 4 7 14 6 1 4 8 15 7 1 4 9 16 8 1 4 Note The user must ensure the bit time settings are in compliance with the CAN Protocol standard ISO 11898 1 Whenever CAN bit is used as a measure...

Страница 1155: ...shown in the following figures Interm Start Move Move in Window EOF bit 2 Matching Window 26 to 90 CAN bits DATA and or CRC DLC Figure 43 103 Matching and move in time windows CRC Interm Start Move bi...

Страница 1156: ...e internal Arbitration process where FlexCAN finds the winner MB for transmission see Arbitration process If the Arbitration ends too early before the first bit of Intermission field then there is a c...

Страница 1157: ...is reserved for Arbitration the FlexCAN may be not be able to find a winner MB in time to be transmitted with the best chance to win the bus arbitration against external nodes on the CAN bus The opti...

Страница 1158: ...ufficient time to do that the following requirements must be observed The peripheral clock frequency can not be smaller than the oscillator clock frequency For 16 Mailboxes the minimum number of perip...

Страница 1159: ...e mode Ignores the Rx input pin and drives the Tx pin as recessive Stops the prescaler thus halting all CAN protocol activities Grants write access to the Error Counters Register which is read only in...

Страница 1160: ...Bus Interface Unit continues to operate enabling the CPU to access memory mapped registers except the Rx Mailboxes Global Mask Registers the Rx Buffer 14 Mask Register the Rx Buffer 15 Mask Register t...

Страница 1161: ...n RAM may not be accessed when the module is in Doze Mode Exiting Doze mode is done in one of the following ways CPU removing the Doze mode request CPU negating the DOZE bit of the CAN_MCR Register Se...

Страница 1162: ...the FlexCAN of a Stop Acknowledgement signal The CPU must only consider the FlexCAN in Stop mode when both request and acknowledgement conditions are satisfied If FlexCAN receives the global Stop mode...

Страница 1163: ...f the Stop mode request the FlexCAN negates the LPMACK bit FlexCAN will then wait for 11 consecutive recessive bits to synchronize to the CAN bus As a consequence it will not receive the frame that wo...

Страница 1164: ...FIFO Warning flag bit 5 becomes the Frames Available in FIFO flag and bits 4 0 are unused See the description of the Interrupt Flags 1 Register CAN_IFLAG1 for more information If both Rx FIFO and DMA...

Страница 1165: ...erved words within RAM cannot be used As an example suppose FlexCAN s RAM can support up to 16 MBs CAN_CTRL2 RFFN is 0x0 and CAN_MCR MAXMB is programmed with zero The maximum number of MBs in this cas...

Страница 1166: ...isabled and the FRZACK and NOTRDY bits in the CAN_MCR Register are set The Tx pin is in recessive state and FlexCAN does not initiate any transmission or reception of CAN frames Note that the Message...

Страница 1167: ...itialized Other entries in each Message Buffer should be initialized as required Initialize the Rx Individual Mask Registers CAN_RXIMRn Set required interrupt mask bits in the CAN_IMASK Registers for...

Страница 1168: ...Initialization application information KV4x Reference Manual Rev 2 02 2015 1168 Preliminary Freescale Semiconductor Inc...

Страница 1169: ...3 SPI clocking The SPI module is clocked by the fast peripheral clock the SPI refers to it as system clock The module has an internal divider with a minimum divide is two So the SPI can run at a maxim...

Страница 1170: ...O size SPI0 4 44 1 7 Number of PCS signals The following table shows the number of peripheral chip select signals available per SPI module Table 44 3 SPI PCS signals SPI Module PCS Signals SPI0 SPI_PC...

Страница 1171: ...ectly This is dependent on the transfer rate used for the SPI the delay between chip select assertion and presentation of data and the system interrupt latency 44 1 9 SPI Doze Mode The Doze mode for t...

Страница 1172: ...SS PCSS SIN SOUT SPI Figure 44 1 SPI Block Diagram 44 2 2 Features The module supports the following features Full duplex three wire synchronous transfers Master mode Slave mode Data streaming operat...

Страница 1173: ...t capability 6 peripheral chip selects PCSes expandable to 64 with external demultiplexer Deglitching support for up to 32 peripheral chip selects PCSes with external demultiplexer DMA support for add...

Страница 1174: ...ed operations the SPI queues can reside in system RAM external to the module Data transfers between the queues and the module FIFOs are accomplished by a DMA controller or host CPU The following figur...

Страница 1175: ...signals are controlled by the module and configured as outputs SCK SOUT PCS x 44 2 4 2 Slave Mode Slave mode allows the module to communicate with SPI bus masters In this mode the module responds to...

Страница 1176: ...signal descriptions This table describes the signals on the boundary of the module that may connect off chip in alphabetical order Table 44 4 Module signal descriptions Signal Master mode Slave mode I...

Страница 1177: ...a transmitted by the module Peripheral Chip Select Strobe O Used only when the peripheral chip select strobe is enabled MCR PCSSE Strobes an off module peripheral chip select demultiplexer which decod...

Страница 1178: ...0C Clock and Transfer Attributes Register In Master Mode SPI_CTAR0 32 R W 7800_0000h 44 4 3 1183 4002_C00C Clock and Transfer Attributes Register In Slave Mode SPI_CTAR0_SLAVE 32 R W 7800_0000h 44 4 4...

Страница 1179: ...e FIFO Registers SPI_RXFR0 32 R 0000_0000h 44 4 11 1199 4002_C080 Receive FIFO Registers SPI_RXFR1 32 R 0000_0000h 44 4 11 1199 4002_C084 Receive FIFO Registers SPI_RXFR2 32 R 0000_0000h 44 4 11 1199...

Страница 1180: ...ROOE Reserved PCSIS W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R DOZE MDIS DIS_ TXF DIS_ RXF 0 0 SMPL_PT 0 Reserved Reserved HALT W CLR_TXF CLR_RXF Reset 0 1 0...

Страница 1181: ...O Overflow Overwrite Enable In the RX FIFO overflow condition configures the module to ignore the incoming serial data or overwrite existing data If the RX FIFO is full and new data is received the da...

Страница 1182: ...is bit can only be written when the MDIS bit is cleared 0 RX FIFO is enabled 1 RX FIFO is disabled 11 CLR_TXF Clear TX FIFO Flushes the TX FIFO Writing a 1 to CLR_TXF clears the TX FIFO Counter The CL...

Страница 1183: ...tions Field Description 31 16 SPI_TCNT SPI Transfer Counter Counts the number of SPI transfers the module makes The SPI_TCNT field increments every time the last bit of an SPI frame is transmitted A v...

Страница 1184: ...W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SPI_CTARn field descriptions Field Description 31 DBR Double Baud Rate Doubles the effective baud rate of the Serial Communications Clock SCK This field is used...

Страница 1185: ...ul communication between serial devices the devices must have identical clock phase settings In Continuous SCK mode the bit value is ignored and the transfers are done as if the CPHA bit is set to 1 0...

Страница 1186: ...ency of the SCK The protocol clock is divided by the prescaler value before the baud rate selection takes place See the BR field description for details on how to compute the baud rate 00 Baud Rate Pr...

Страница 1187: ...e PCS signal at the end of a frame and the assertion of PCS at the beginning of the next frame In the Continuous Serial Communications Clock operation the DT value is fixed to one SCK clock period The...

Страница 1188: ...ddress 4002_C000h base Ch offset 0d i where i 0d to 0d Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 R Reserved FMSZ CPOL CPHA 0 Reserved Reserved W Reset 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 Bit 15...

Страница 1189: ...data to change and which edge causes data to be captured This bit is used in both master and slave mode For successful communication between serial devices the devices must have identical clock phase...

Страница 1190: ...1c w1c w1c Reset 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R TXCTR TXNXTPTR RXCTR POPNXTPTR W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SPI_SR field descriptions Field Desc...

Страница 1191: ...5 TFFF Transmit FIFO Fill Flag Provides a method for the module to request more entries to be added to the TX FIFO The TFFF bit is set while the TX FIFO is not full The TFFF bit can be cleared by writ...

Страница 1192: ...The TXCTR is decremented every time an SPI command is executed and the SPI data is transferred to the shift register 11 8 TXNXTPTR Transmit Next Pointer Indicates which TX FIFO entry is transmitted du...

Страница 1193: ...iption 31 TCF_RE Transmission Complete Request Enable Enables TCF flag in the SR to generate an interrupt request 0 TCF interrupt requests are disabled 1 TCF interrupt requests are enabled 30 Reserved...

Страница 1194: ...reset value to this field This field is reserved 22 Reserved Always write the reset value to this field This field is reserved 21 Reserved Always write the reset value to this field This field is res...

Страница 1195: ...ode the register transfers 16 bits of data to the TX FIFO and 16 bits of command information to the CMD FIFO In Slave mode the CMD FIFO is not used and the 16 bits of command information are reserved...

Страница 1196: ...11 Reserved 100 Reserved 101 Reserved 110 Reserved 111 Reserved 27 EOQ End Of Queue Host software uses this bit to signal to the module that the current SPI transfer is the last in a queue At the end...

Страница 1197: ...ield to the TX FIFO In slave mode the CMD FIFO is not used and the 16 bits of command information in PUSHR are reserved Address 4002_C000h base 34h offset 4002_C034h Bit 31 30 29 28 27 26 25 24 23 22...

Страница 1198: ...e visibility into the TX FIFO for debugging purposes Each register is an entry in the TX FIFO The registers are read only and cannot be modified Reading the TXFRx registers does not alter the state of...

Страница 1199: ...ddress 4002_C000h base 7Ch offset 4d i where i 0d to 3d Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 R RXDATA W Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

Страница 1200: ...an extension of SR RXCTR The concatenated field RXCTR4 RXCTR indicates the number of entries in the RX FIFO This field is decremented every time the POPR is read And this field is incremented every ti...

Страница 1201: ...ation in which the module operates as a basic SPI or a queued SPI The DCONF field in the Module Configuration Register MCR determines the module Configuration SPI configuration is selected when DCONF...

Страница 1202: ...nd Running Both the states are independent of it s configuration The default state of the module is Stopped In the Stopped state no serial transfers are initiated in Master mode and no transfers are r...

Страница 1203: ...O buffering mechanism The interrupt and DMA request conditions are described in Interrupts DMA requests The SPI configuration supports two block specific modes Master mode and Slave mode In Master mod...

Страница 1204: ...from the POPR When the TX FIFO and CMD FIFO are disabled SR TFFF SR TFUF and SR TXCTR behave as if there is a one entry FIFO The contents of TXFRs SR TXNXTPTR are undefined Similarly when the RX FIFO...

Страница 1205: ...Every time an entry is transferred from the TX FIFO to the shift register the TX FIFO Counter decrements by one At the end of a transfer the TCF bit in the SR is set to indicate the completion of a t...

Страница 1206: ...ignored or shifted in to the shift register If the ROOE bit is set the incoming data is shifted in to the shift register If the ROOE bit is cleared the incoming data is ignored 44 5 2 5 2 Draining the...

Страница 1207: ...cy used to drive this module in the device 44 5 3 2 PCS to SCK Delay tCSC The PCS to SCK delay is the length of time from assertion of the PCS signal to the first SCK edge See Figure 44 29 for an illu...

Страница 1208: ...ween negation of the PCS signal for a frame and the assertion of the PCS signal for the next frame See Figure 44 29 for an illustration of the Delay after Transfer The PDT and DT fields in the CTARx r...

Страница 1209: ...CK field in the CTAR based on the following formula P At the end of the transfer the delay between PCSS negation and PCS negation is selected by the PASC field in the CTAR based on the following formu...

Страница 1210: ...bus slave does not control the SCK signal in Slave mode the values of CPOL and CPHA must be identical to the master device settings to ensure proper transmission In SPI Slave mode only CTAR0 is used T...

Страница 1211: ...initiates the transfer by placing its first data bit on the SOUT pin and asserting the appropriate peripheral chip select signals to the slave device The slave responds by placing its first data bit o...

Страница 1212: ...4 Bit 3 Bit 2 Bit 1 LSB first LSBFE 1 LSB Figure 44 30 Module transfer timing diagram MTFE 0 CPHA 1 FMSZ 8 The master initiates the transfer by asserting the PCS signal to the slave After the tCSC de...

Страница 1213: ...io is below four the master changes SOUT at odd numbered SCK edge The point where the master samples the SIN is selected by the DSPI_MCR SMPL_PT field The master sample point can be delayed by one or...

Страница 1214: ...represents the protocol clock frequency from which the Baud frequency fsck is derived 2n 2 DSPI samples SIN SMPL_PT 0 D0 D1 D2 Dn D0 D1 D2 Dn D0 D1 D2 Dn sys clk PCS SCK SOUT D1 D0 D2 Dn Tcsc Tvd_sl T...

Страница 1215: ...owing figures show the Modified Transfer Format for CPHA 1 Only the condition where CPOL 0 is shown At the start of a transfer the DSPI asserts the PCS signal to the slave device After the PCS to SCK...

Страница 1216: ...r or equal to half of the SCK period sys clk PCS SIN SCK SOUT D1 D0 D2 Dn D0 D1 D2 Dn Tcsc Tvd_sl Tsu_ms Thd_ms Tasc Slave samples SOUT Thd_sl Tsu_sl 2n 2 2n 1 8 7 6 5 4 3 2 1 DSPI samples SIN Figure...

Страница 1217: ...ous Selection Format provides the flexibility to handle the following case The Continuous Selection Format is enabled for the SPI configuration by setting the CONT bit in the SPI command When the CONT...

Страница 1218: ...ming diagram for two four bit transfers with CPHA 1 and CONT 1 PCS Master SIN tCSC PCS to SCK de l ay t ASC After SCK delay SCK CPOL 0 SCK CPOL 1 Master SOUT tCSC t ASC tCSC Figure 44 38 Example of co...

Страница 1219: ...ty the slave is deselected for any further serial communication otherwise an underflow error occurs 44 5 5 Continuous Serial Communications Clock The module provides the option of generating a Continu...

Страница 1220: ...tiating transfer PCS Master SIN SCK CPOL 0 SCK CPOL 1 Master SOUT tDT Figure 44 39 Continuous SCK Timing Diagram CONT 0 If the CONT bit in the TX FIFO entry is set PCS remains asserted between the tra...

Страница 1221: ...dge of each frame defined by frame size programmed to the CTAR0 1 register Then the data from the buffer is transferred to the RXFIFO or DDR register If the SS negates before that last SCK edge the da...

Страница 1222: ...E and the EOQ bit in the executing SPI command is 1 The module generates the interrupt request when the last bit of the SPI frame with EOQ bit set is transmitted 44 5 7 2 Transmit FIFO Fill Interrupt...

Страница 1223: ...Drain Request is generated when the number of entries in the RX FIFO is not zero and the RFDF_RE bit in the RSER is set The RFDF_DIRS bit in the RSER selects whether a DMA request or an interrupt req...

Страница 1224: ...e entered Module Disable Mode This also puts the module in STOPPED state The SR TXRXS bit is cleared to indicate STOPPED state If implemented the Clock Enable signal can stop the clock to the non memo...

Страница 1225: ...ts in the DMA Controller 6 Ensure all received data in RX FIFO has been transferred to memory receive queue by reading the RXCNT in SR or by checking RFDF in the SR after each read operation of the PO...

Страница 1226: ...aud rate scaler BR in the CTARs The values calculated assume a 100 MHz protocol frequency and the double baud rate DBR bit is cleared NOTE The clock frequency mentioned above is given as an example in...

Страница 1227: ...used to drive this module in the device Table 44 46 Delay values Delay prescaler values 1 3 5 7 Delay scaler values 2 20 0 ns 60 0 ns 100 0 ns 140 0 ns 4 40 0 ns 120 0 ns 200 0 ns 280 0 ns 8 80 0 ns...

Страница 1228: ...with the FIFO Counter The TX FIFO is chosen for the illustration but the concepts carry over See Transmit First In First Out TX FIFO buffering mechanism Command First In First Out CMD FIFO Buffering M...

Страница 1229: ...in the CMD FIFO is computed by the following equation CMD FIFO Base Base address of CMD FIFO CMDCTR CMD FIFO Counter CMDNXTPTR Command Next Pointer CMD FIFO Depth Command FIFO depth implementation sp...

Страница 1230: ...PNXTPTR Pop Next Pointer RX FIFO Depth Receive FIFO depth implementation specific Initialization application information KV4x Reference Manual Rev 2 02 2015 1230 Preliminary Freescale Semiconductor In...

Страница 1231: ...ting at higher baud rates up to a maximum of clock 20 with reduced bus loading The maximum communication length and the number of devices that can be connected are limited by a maximum bus capacitance...

Страница 1232: ...e slave address support DMA support 45 2 2 Modes of operation The I2C module s operation in various low power modes is as follows Run mode This is the basic mode of operation To conserve power in this...

Страница 1233: ...re 45 1 I2C Functional block diagram 45 3 I2C signal descriptions The signal properties of I2C are shown in the table found here Table 45 1 I2C signal descriptions Signal Description I O SCL Bidirecti...

Страница 1234: ...MBus Control and Status register I2C_SMB 8 R W 00h 45 4 9 1243 4006_6009 I2C Address Register 2 I2C_A2 8 R W C2h 45 4 10 1245 4006_600A I2C SCL Low Timeout Register High I2C_SLTH 8 R W 00h 45 4 11 124...

Страница 1235: ...ling edge of SCL I2C clock to the changing of SDA I2C data SDA hold time I2C module clock period s mul SDA hold value The SCL start hold time is the delay from the falling edge of SDA I2C data while S...

Страница 1236: ...en MST is changed from 0 to 1 a START signal is generated on the bus and master mode is selected When this bit changes from 1 to 0 a STOP signal is generated and the mode of operation changes from mas...

Страница 1237: ...rrupt generated when address matching in low power mode 1 Enables the wakeup function in low power mode 0 DMAEN DMA Enable Enables or disables the DMA function 0 All DMA signalling disabled 1 DMA tran...

Страница 1238: ...egisters IAAS sets before the ACK bit The CPU must check the SRW bit and set TX RX accordingly Writing the C1 register with any value clears this bit 0 Not addressed 1 Addressed as a slave 5 BUSY Bus...

Страница 1239: ...or start detection interrupt In the interrupt service routine first clear the STOPF or STARTF bit in the Input Glitch Filter register by writing 1 to it and then clear the IICIF bit If this sequence i...

Страница 1240: ...position bit 0 45 4 6 I2C Control Register 2 I2C_C2 Address 4006_6000h base 5h offset 4006_6005h Bit 7 6 5 4 3 2 1 0 Read GCAEN ADEXT HDRS SBRC RMEN AD 10 8 Write Reset 0 0 0 0 0 0 0 0 I2C_C2 field d...

Страница 1241: ...ionality 1 The I2C module is configured for a basic transfer and the SHEN bit is set to 1 2 A transfer begins 3 The MCU signals the I2C module to enter stop mode 4 The byte currently being transferred...

Страница 1242: ...sabled 1 Stop or start detection interrupt is enabled 4 STARTF I2C Bus Start Detect Flag Hardware sets this bit when the I2C bus s start status is detected The STARTF bit must be cleared by writing 1...

Страница 1243: ...nitor the SHTF1 bit because the bus speed is too high to match the protocol of SMBus Address 4006_6000h base 8h offset 4006_6008h Bit 7 6 5 4 3 2 1 0 Read FACK ALERTEN SIICAEN TCKSEL SLTF SHTF1 SHTF2...

Страница 1244: ...urs Software clears this bit by writing a logic 1 to it NOTE The low timeout function is disabled when the SLT register s value is 0 0 No low timeout occurs 1 Low timeout occurs 2 SHTF1 SCL High Timeo...

Страница 1245: ...w Timeout Register High I2C_SLTH Address 4006_6000h base Ah offset 4006_600Ah Bit 7 6 5 4 3 2 1 0 Read SSLT 15 8 Write Reset 0 0 0 0 0 0 0 0 I2C_SLTH field descriptions Field Description SSLT 15 8 SSL...

Страница 1246: ...ces connected to it must have open drain or open collector outputs A logic AND function is exercised on both lines with external pull up resistors The value of these resistors depends on the system No...

Страница 1247: ...gh to low transition of SDA while SCL is high This signal denotes the beginning of a new data transfer each data transfer might contain several bytes of data and brings all slaves out of their idle st...

Страница 1248: ...signaled from the receiving device by pulling SDA low at the ninth clock In summary one complete data transfer needs nine clock pulses If the slave receiver does not acknowledge the master in the nin...

Страница 1249: ...se the transition from master to slave mode does not generate a STOP condition Meanwhile hardware sets a status bit to indicate the loss of arbitration 45 5 1 7 Clock synchronization Because wire AND...

Страница 1250: ...a slave can drive SCL low for the required period and then release it If the slave s SCL low period is greater than the master s SCL low period the resulting SCL bus signal s low period is stretched...

Страница 1251: ...286 289 0D 48 11 20 25 2D 640 97 318 321 0E 56 13 24 29 2E 768 129 382 385 0F 68 13 30 35 2F 960 129 478 481 10 48 9 18 25 30 640 65 318 321 11 56 9 22 29 31 768 65 382 385 12 64 13 26 33 32 896 129...

Страница 1252: ...bits 11110 AD10 AD9 R W 0 A1 Slave address second byte AD 8 1 A2 Data A Data A A P After the master transmitter has sent the first byte of the 10 bit address the slave receiver sees an I2C interrupt...

Страница 1253: ...process It provides a 7 bit address If the ADEXT bit is set AD 10 8 in Control Register 2 participates in the address matching process It extends the I2C primary slave address to a 10 bit address Add...

Страница 1254: ...nd be able to receive a new START condition within the timeframe of TTIMEOUT MAX SMBus defines a clock low timeout TTIMEOUT of 35 ms specifies TLOW SEXT as the cumulative clock low extend time for a s...

Страница 1255: ...intervals TLOW SEXT and TLOW MEXT When in master mode the I2C module must not cumulatively extend its clock cycles for a period greater than TLOW MEXT within a byte where each byte is defined as START...

Страница 1256: ...acknowledge its own address as a mechanism to detect the presence of a removable device such as a battery or docking station on the bus In addition to indicating a slave device busy condition SMBus u...

Страница 1257: ...ICIF IICIE Arbitration lost ARBL IICIF IICIE I2C bus stop detection STOPF IICIF IICIE SSIE I2C bus start detection STARTF IICIF IICIE SSIE SMBus SCL low timeout SLTF IICIF IICIE SMBus SCL high SDA low...

Страница 1258: ...more masters try to control the bus at the same time the relative priority of the contending masters is determined by a data arbitration procedure The I2C module asserts the arbitration lost interrupt...

Страница 1259: ...module The width of the glitch to absorb can be specified in terms of the number of half I2C module clock cycles A single Programmable Input Glitch Filter control register is provided Effectively any...

Страница 1260: ...a DMA request instead DMA requests are generated by the transfer complete flag TCF If the DMAEN bit is set only the TCF initiates a DMA request All other events generate CPU interrupts NOTE Before th...

Страница 1261: ...ister 1 to enable TX 6 Write Control Register 1 to enable MST master mode 7 Write Data register with the address of the target slave the LSB of this byte determines whether the communication is master...

Страница 1262: ...s 1 If general call is enabled check to determine if the received address is a general call address 0x00 If the received address is a general call address the general call must be handled by user soft...

Страница 1263: ...Data reg Clear IICIF Notes 1 If general call or SIICAEN is enabled check to determine if the received address is a general call address 0x00 or an SMBus device default address In either case they mus...

Страница 1264: ...Initialization application information KV4x Reference Manual Rev 2 02 2015 1264 Preliminary Freescale Semiconductor Inc...

Страница 1265: ...ast bus clock The maximum baud rate is 1 16 of related source clock frequency 3 UART0 contains 8 entry transmit and 8 entry receive FIFOs 4 All other UARTs contain a 1 entry transmit and receive FIFOs...

Страница 1266: ...terrupt request See below for the mapping of the individual interrupt sources to the interrupt request The status interrupt combines the following interrupt sources Source UART 0 UART 1 Transmit data...

Страница 1267: ...nsmitter output polarity Programmable receive input polarity Up to 16 bit break character transmission 11 bit break character detection option Independent FIFO structure for transmit and receive Two r...

Страница 1268: ...rror Active edge on receive pin LIN break detect Receiver framing error detection Hardware parity generation and checking 1 16 bit time noise detection DMA interface 46 2 2 Modes of operation The UART...

Страница 1269: ...resets the UART 46 2 2 3 Stop mode The UART is inactive during Stop mode for reduced power consumption The STOP instruction does not affect the UART register states but the UART module clock is disabl...

Страница 1270: ...n occur at any time can deassert asynchronously to the other input signals RXD I Receive data Serial data input to receiver State meaning Whether RXD is interpreted as a 1 or 0 depends on the bit enco...

Страница 1271: ...6 4 14 1287 4006_A010 UART FIFO Parameters UART0_PFIFO 8 R W See section 46 4 15 1289 4006_A011 UART FIFO Control Register UART0_CFIFO 8 R W 00h 46 4 16 1290 4006_A012 UART FIFO Status Register UART0_...

Страница 1272: ..._TWFIFO 8 R W 00h 46 4 18 1292 4006_B014 UART FIFO Transmit Count UART1_TCFIFO 8 R 00h 46 4 19 1293 4006_B015 UART FIFO Receive Watermark UART1_RWFIFO 8 R W 01h 46 4 20 1293 4006_B016 UART FIFO Receiv...

Страница 1273: ...ls NOTE The baud rate generator is disabled until C2 TE or C2 RE is set for the first time after reset The baud rate generator is disabled when SBR 0 Writing to BDH has no effect without writing to BD...

Страница 1274: ...ormal operation 1 Loop mode where transmitter output is internally connected to receiver input The receiver input is determined by RSRC 6 UARTSWAI UART Stops in Wait Mode 0 UART clock continues to run...

Страница 1275: ...starts after start bit 1 Idle character bit count starts after stop bit 1 PE Parity Enable Enables the parity function When parity is enabled parity function inserts a parity bit in the bit position...

Страница 1276: ...ART transmitter TE can be used to queue an idle preamble by clearing and then setting TE 0 Transmitter off 1 Transmitter on 2 RE Receiver Enable Enables the UART receiver 0 Receiver off 1 Receiver on...

Страница 1277: ...ween the two steps as long the handling of I O is not compromised but the order of operations is important for flag clearing When a flag is configured to trigger a DMA request assertion of the associa...

Страница 1278: ...ore than the number indicated by RWFIFO RXWATER A dataword that is in the process of being received is not included in the count To clear RDRF read S1 when RDRF is set and then read D For more efficie...

Страница 1279: ...r has a depth greater than 1 then there may be data in the receiver buffer that was received with noise 1 At least one dataword was received with noise detected since the last time the flag was cleare...

Страница 1280: ...e for additional details RXEDGIF description NOTE The active edge is detected only in two wire mode and on receiving data coming from the RxD pin 0 No active edge on the receive pin has occurred 1 An...

Страница 1281: ...LBKDE is set S1 RDRF S1 NF S1 FE and S1 PF are prevented from setting When LBKDE is set see Overrun operation 0 Break character detection is disabled 1 Break character is detected at length of 11 bit...

Страница 1282: ...ion Setting this field reverses the polarity of the transmitted data output In NRZ format a one is represented by a mark and a zero is represented by a space for normal polarity and the opposite for i...

Страница 1283: ...bit That one parity bit is loaded into the D register So for the data bits mask off the parity bit from the value you read out of this register When transmitting in 9 bit data format and using 8 bit w...

Страница 1284: ...Registers 2 UARTx_MA2 These registers can be read and written at anytime The MA1 and MA2 registers are compared to input data addresses when the most significant bit is set and the associated C4 MAEN...

Страница 1285: ...M10 field does not affect the LIN send or detect break behavior If M10 is set then both C1 M and C1 PE must also be set See Data format for more information 0 The parity bit is the ninth bit in the se...

Страница 1286: ...S LIN Break Detect DMA Select Bit Configures the LIN break detect flag S2 LBKDIF to generate interrupt or DMA requests if BDH LBKDIE is set NOTE If BDH LBKDIE is cleared and S2 LBKDIF is set the LBKDI...

Страница 1287: ...rror 1 The dataword was received with a parity error Reserved This field is reserved This read only field is reserved and always has the value 0 46 4 14 UART Modem Register UARTx_MODEM The MODEM regis...

Страница 1288: ...s no effect on RTS 1 When a character is placed into an empty transmitter data buffer RTS asserts one bit time before the start bit is transmitted RTS deasserts one bit time after all characters in th...

Страница 1289: ...s set the built in FIFO structure for the transmit buffer is enabled The size of the FIFO structure is indicated by TXFIFOSIZE If this field is not set the transmit buffer operates as a FIFO of depth...

Страница 1290: ...rds 100 Receive FIFO Buffer depth 32 datawords 101 Receive FIFO Buffer depth 64 datawords 110 Receive FIFO Buffer depth 128 datawords 111 Reserved 46 4 16 UART FIFO Control Register UARTx_CFIFO This r...

Страница 1291: ...1 TXOF flag generates an interrupt to the host 0 RXUFE Receive FIFO Underflow Interrupt Enable When this field is set the RXUF flag generates an interrupt to the host 0 RXUF flag does not generate an...

Страница 1292: ...TXOFE However an interrupt will be issued to the host only if CFIFO TXOFE is set This flag is cleared by writing a 1 0 No transmit buffer overflow has occurred since the last time the flag was cleare...

Страница 1293: ...ions Field Description TXCOUNT Transmit Counter The value in this register indicates the number of datawords that are in the transmit FIFO buffer If a dataword is being transmitted that is in the tran...

Страница 1294: ...0 0 0 UARTx_RCFIFO field descriptions Field Description RXCOUNT Receive Counter The value in this register indicates the number of datawords that are in the receive FIFO buffer If a dataword is being...

Страница 1295: ...DMA Requests IRQ Requests TxD LOOP CONTROL LOOPS RSRC UART DATA REGISTER UART_D Figure 46 64 Transmitter Block Diagram 46 5 1 1 Transmitter character length The UART transmitter can accommodate either...

Страница 1296: ...mit buffer structure The UART also sets a flag the transmit data register empty flag S1 TDRE and generates an interrupt or DMA request C5 TDMAS whenever the number of datawords in the transmit buffer...

Страница 1297: ...Following this the transmit data out signal enters the idle state even if there is data pending in the UART transmit data buffer To ensure that all the data written in the FIFO is transmitted on the l...

Страница 1298: ...ty bit Idle character length depends on C1 M C1 PE BDH SBNS and C4 M10 The preamble is a synchronizing idle character that begins the first transmission initiated after setting C2 TE If C2 TE is clear...

Страница 1299: ...for details If the request to send operation is enabled when a character is placed into an empty transmitter data buffer RTS asserts one bit time before the start bit is transmitted RTS remains asser...

Страница 1300: ...k Stop Break C5 data buffer write CTS_B RTS_B C1 in transmission 1 1 Cn transmit characters Figure 46 65 Transmitter RTS and CTS timing diagram Functional description KV4x Reference Manual Rev 2 02 20...

Страница 1301: ...xD LOOPS RSRC From Transmitter RECEIVER SOURCE CONTROL To TxD Figure 46 66 UART receiver block diagram 46 5 2 1 Receiver character length The UART receiver can accommodate 8 9 or 10 bit data character...

Страница 1302: ...n flags regarding the receive dataword can be read in ED register S1 RDRF is set if the number of resulting datawords in the receive buffer is equal to or greater than the number indicated by RWFIFO R...

Страница 1303: ...fication RT3 RT5 and RT7 samples Start bit verification Noise flag 000 Yes 0 001 Yes 1 010 Yes 1 011 No 0 100 Yes 1 101 No 0 110 No 0 111 No 0 If start bit verification is not successful the RT clock...

Страница 1304: ...and RT5 determine that the first low detected was noise and not the beginning of a start bit The RT clock is reset and the start bit search begins again The noise flag is not set because the noise oc...

Страница 1305: ...time the data samples RT8 RT9 and RT10 are within the bit time and data recovery is successful SAMPLES Rx pin input RT CLOCK RT CLOCK COUNT RESET RT CLOCK 1 1 1 0 0 1 0 0 0 0 PERCEIVED START BIT ACTU...

Страница 1306: ...of the start bit search and on the data the frame may be missed entirely or it may set the framing error flag SAMPLES Rx pin input RT CLOCK RT CLOCK COUNT RESET RT CLOCK 1 1 1 1 0 0 START BIT LSB RT1...

Страница 1307: ...E is set at the same time that received data is placed in the receive data buffer 46 5 2 6 Receiving break characters The UART recognizes a break character when a start bit is followed by eight nine o...

Страница 1308: ...receiver can be programmed to automatically deassert and assert RTS RTS remains asserted until the transfer is complete even if the transmitter is disabled midway through a data transfer See Transceiv...

Страница 1309: ...cur if the RT8 RT9 and RT10 samples are not all the same logical values A framing error will occur if the receiver clock is misaligned in such a way that the majority of the RT8 RT9 and RT10 stop bit...

Страница 1310: ...t takes the receiver 170 RT cycles 10 bit times 16 RT cycles 10 RT cycles With the misaligned character shown in the Figure 46 75 the receiver counts 170 RT cycles at the point when the count of the t...

Страница 1311: ...errors is 170 176 170 100 3 53 46 5 2 9 Receiver wakeup C1 WAKE determines how the UART is brought out of the standby state to process an incoming message C1 WAKE enables either idle line wakeup or a...

Страница 1312: ...Address operation is enabled i e C4 MAEN1 or C4 MAEN2 is set then received frame is transferred to receive buffer only if the comparison matches Address mark wakeup allows messages to contain idle ch...

Страница 1313: ...ds fractional delays to the baud rate clock to allow fine trimming of the baud rate to match the system baud rate The transmitter is driven by the baud rate clock divided by 16 The receiver has an acq...

Страница 1314: ...0 110 0 00 Table 46 76 Baud rate fine adjust BRFA Baud Rate Fractional Divisor BRFD 0 0 0 0 0 0 32 0 0 0 0 0 1 1 32 0 03125 0 0 0 1 0 2 32 0 0625 0 0 0 1 1 3 32 0 09375 0 0 1 0 0 4 32 0 125 0 0 1 0 1...

Страница 1315: ...significant bit of the eight data bits can be used as an address mark to wake the receiver If the most significant bit is used in this way then it serves as an address or data indication leaving the...

Страница 1316: ...character bits and a tenth internal data bit Note that if C4 M10 is set C1 PE must also be set In this case the tenth bit is the internally generated parity bit The ninth bit can either be used as an...

Страница 1317: ...6 78 Eight bits of data with MSB first 46 5 4 3 2 Eight bit format with parity enabled BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 STOP BIT START BIT START BIT PARITY Figure 46 79 Seven bits of data wit...

Страница 1318: ...T BIT 0 ADDRESS MARK Figure 46 85 Nine bits of data with LSB first and parity BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 PARITY STOP BIT START BIT START BIT BIT 8 ADDRESS MARK Figure 46 86 Nine b...

Страница 1319: ...nects the transmitter output to the receiver input Both the transmitter and receiver must be enabled C2 TE 1 and C2 RE 1 46 6 Reset All registers reset to a particular value are indicated in Memory ma...

Страница 1320: ...1 RxD edge detect sensitivity Edge sensitivity can be software programmed to be either falling or rising The polarity of the edge sensitivity is selected using S2 RXINV To detect the falling edge S2...

Страница 1321: ...ld settings required to configure each flag for DMA operation Table 46 80 DMA configuration Flag Request enable bit DMA select bit TDRE TIE 1 TDMAS 1 RDRF RIE 1 RDMAS 1 LBKDIF LBKDIE 1 LBKDDMAS 1 When...

Страница 1322: ...for a data block has been put into the data buffer when TCFIFO TXCOUNT 0 all data has been transmitted or is in the process of transmission 3 S1 TC can be monitored When S1 TC asserts it indicates th...

Страница 1323: ...with preambles with minimum idle line time use this sequence between messages 1 Write the last dataword of the first message to C3 T8 D 2 Wait for S1 TDRE to go high with TWFIFO TXWATER 0 indicating t...

Страница 1324: ...Care should be taken to disable the SFIFO RXUF interrupt prior to clearing the OR flag and then clearing SFIFO RXUF after the OR flag has been cleared When LIN break detect LBKDE is asserted S1 OR has...

Страница 1325: ...RTS RS 485 is a multiple drop communication protocol in which the UART transceiver s driver is 3 stated unless the UART is driving The RTS signal can be used by the transmitter to enable the driver o...

Страница 1326: ...indicated otherwise in some cases it was possible for S1 IDLE to assert even if S1 OR was set 4 S1 OR will be set only if the data buffer FIFO does not have sufficient room Previously the data buffer...

Страница 1327: ...abled or disabled by PORTA_PCR4 PFE control This reset default is to have this function disabled PTC6 and PTC7 have true open drain outputs thus when enabled as outputs an external pull resistor is re...

Страница 1328: ...of operation Modes of operation Description Run The GPIO module operates normally Wait The GPIO module operates normally Stop The GPIO module is disabled Debug The GPIO module operates normally 47 2 3...

Страница 1329: ...the system clock NOTE Not all pins within each port are implemented on each device See the chapter on signal multiplexing for the number of GPIO ports available in the device 47 3 Memory map and regi...

Страница 1330: ...ort Set Output Register GPIOC_PSOR 32 W always reads 0 0000_0000h 47 3 2 1332 400F_F088 Port Clear Output Register GPIOC_PCOR 32 W always reads 0 0000_0000h 47 3 3 1332 400F_F08C Port Toggle Output Re...

Страница 1331: ...utput pins NOTE Do not modify pin configuration registers associated with pins not available in your selected package All unbonded pins not available in your package will default to DISABLE state for...

Страница 1332: ...n PDORn is set to logic 1 47 3 3 Port Clear Output Register GPIOx_PCOR This register configures whether to clear the fields of PDOR Address Base address 8h offset Bit 31 30 29 28 27 26 25 24 23 22 21...

Страница 1333: ...ilable in your selected package All unbonded pins not available in your package will default to DISABLE state for lowest power consumption Address Base address 10h offset Bit 31 30 29 28 27 26 25 24 2...

Страница 1334: ...gital function and the corresponding Port Control and Interrupt module is enabled The Port Data Input registers return the synchronized pin state after any enabled digital filter in the Port Control a...

Страница 1335: ...facilitate efficient bit manipulation on the general purpose outputs pin data set pin data clear and pin data toggle registers exist to allow one or more outputs within one port to be set cleared or...

Страница 1336: ...Functional description KV4x Reference Manual Rev 2 02 2015 1336 Preliminary Freescale Semiconductor Inc...

Страница 1337: ...rial format 48 1 1 Block diagram The following is a simplified block diagram of the JTAG Controller JTAGC block Refer to the chip specific configuration information as well as Register description for...

Страница 1338: ...149 1 2001 defined test modes are supported as well as a bypass mode 48 1 3 1 Reset The JTAGC block is placed in reset when either power on reset is asserted or the TMS input is held high for enough c...

Страница 1339: ...y of each test mode is explained in more detail in JTAGC block instructions 48 1 3 3 Bypass mode When no test operation is required the BYPASS instruction can be loaded to place the JTAGC block into b...

Страница 1340: ...tion This section provides a detailed description of the JTAGC block registers accessible through the TAP interface including data registers and the instruction register Individual bit level descripti...

Страница 1341: ...is always a logic 0 48 3 3 Device identification register The device identification JTAG ID register shown in the following figure allows the revision number part number manufacturer and design center...

Страница 1342: ...onal pins Each bit of the boundary scan register represents a separate boundary scan register cell as described in the IEEE 1149 1 2001 standard and discussed in Boundary scan The size of the boundary...

Страница 1343: ...troller is a synchronous state machine that interprets the sequence of logical values on the TMS pin The following figure shows the machine s states The value shown next to each state is the value of...

Страница 1344: ...EXIT1 DR EXIT1 IR P AUSE DR P AUSE IR EXIT2 IR EXIT2 DR UPDA TE DR UPDA TE IR 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Figure 48 4 IEEE 1149 1 2001 TAP controller finite state m...

Страница 1345: ...1 2001 standard for more details All undefined opcodes are reserved Table 48 3 4 bit JTAG instructions Instruction Code 3 0 Instruction summary IDCODE 0000 Selects device identification register for...

Страница 1346: ...s The SAMPLE portion of the instruction obtains a sample of the system data and control signals present at the MCU input pins and just before the boundary scan register cells at the output pins This s...

Страница 1347: ...an register using the SAMPLE PRELOAD instruction before the selection of EXTEST EXTEST asserts the internal system reset for the MCU to force a predictable internal state while performing external bou...

Страница 1348: ...The boundary scan register consists of this shift register chain and is connected between TDI and TDO when the EXTEST SAMPLE or SAMPLE PRELOAD instructions are loaded The shift register chain contain...

Страница 1349: ...x Signal Multiplexing and Pin Assignments A 2 Introduction chapter changes Added 48 LQFP information A 3 Core overview chapter changes No substantial content changes A 4 Memories and Memory Interfaces...

Страница 1350: ...es A 9 Debug chapter changes No substantial content changes A 10 Reset and Boot chapter changes No substantial content changes A 11 Signal Multiplexing chapter changes Updated Table Ports summary Adde...

Страница 1351: ...A 14 RCM changes No substantial content changes A 15 SMC changes No substantial content changes A 16 MCM changes No substantial content changes A 17 PMC changes No substantial content changes A 18 LLW...

Страница 1352: ...d note re channel priority errors Block parts Changed 16 32 bytes of register storage to a data buffer in Data path description Added note to DMA_CR CLM description re restriction on use of continuous...

Страница 1353: ...9 MCG changes Updated the bitfield access of ATMF and LOCS0 in the MCG_SC register A 30 FMC changes A 31 FTFA changes Correct Flash Configuration Field Offset Address for VFYKEY command input Add FXAC...

Страница 1354: ...A 38 FTM changes Added the following note to Introduction Block diagram and Memory map sections The number of channels supported can vary for each instance of the FTM module on a chip See the chip sp...

Страница 1355: ...always in effect the bits in the MG field will mask the Mailbox filter bits Changed RXMGMASK has no effect to RXMGMASK has no effect the bits in the MG field will not mask the Mailbox filter bits In F...

Страница 1356: ...s to RW for these bits In PUSHR register added note Always write the reset value to this field to Reserved bits Also updated bit field access to RW for these bits In Memory Map Register Definition sec...

Страница 1357: ...A 47 JTAGC module changes No substantial content changes KV4x Reference Manual Rev 2 02 2015 Freescale Semiconductor Inc Preliminary 1357...

Страница 1358: ...KV4x Reference Manual Rev 2 02 2015 1358 Preliminary Freescale Semiconductor Inc...

Страница 1359: ...ncidental damages Typical parameters that may be provided in Freescale data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operati...

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