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Figure 12 Transmission Width with Source of 16bits and Target of 16bits

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Figure 13 Transmission Width with Source of 16bits and Target of 32bits

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Содержание APM32F030x4x6x8xC

Страница 1: ...www geehy com Page 0 User Manual APM32F030x4x6x8xC Arm Cortex M0 based 32 bit MCU Version V1 7...

Страница 2: ...Controller SYSCFG 22 4 1 Full Name and Abbreviation Description of Terms 22 4 2 Register Address Mapping 22 4 3 Register Functional Description 22 5 Reset and Clock Management RCM 28 5 1 Full Name an...

Страница 3: ...ain Characteristics 77 10 4 Functional Description 78 10 5 Register Address Mapping 78 10 6 Register Functional Description 78 11 General purpose Alternate Function Input Output Pin GPIO AFIO 82 11 1...

Страница 4: ...6 1 Introduction 175 16 2 Main Characteristics 175 16 3 Structure Block Diagram 176 16 4 Functional Description 177 16 5 TMR15 Register Address Mapping 188 16 6 TMR15 Register Functional Description 1...

Страница 5: ...roduction 246 21 3 Main Characteristics 246 21 4 Functional Description 247 21 5 Register Address Mapping 259 21 6 Register Functional Description 260 22 Internal Integrated Circuit Interface I2C 270...

Страница 6: ...ption 317 25 Cyclic Redundancy Check Computing Unit CRC 323 25 1 Introduction 323 25 2 Functional Description 323 25 3 Register Address Mapping 323 25 4 Register Functional Description 324 26 Chip Ele...

Страница 7: ...gisters usually include V VALUE D and DATA which are not followed by verbs such as xxPSC and CNT Full Name and Abbreviation Description of Terms Table 1 R W Abbreviation and Description R W Descriptio...

Страница 8: ...trl CTRL Controller C Reset RST Stop STOP Set SET Load LD Calibration CAL Initialize INIT Error ERR Status STS Ready RDY Software SW Hardware HW Source SRC System SYS Peripheral PER Address ADDR Direc...

Страница 9: ...ry Access DMA Debug MCU DBG MCU General Purpose Input Output Pin GPIO Alternate Function Input Output Pin AFIO Timer TMR Watchdog Timer WDT Independent Watchdog Timer IWDT Windows Watchdog Timer WWDT...

Страница 10: ...2 2 System Architecture Block Diagram The main system mainly consists of two master modules and four slave modules The main modules are Arm Cortex M0 core and general purpose DMA The slave modules are...

Страница 11: ...le 5 Bus Name Name Instruction System bus Connect the system bus peripheral bus of Arm Cortex M0 core and the bus matrix DMA bus Connect AHB master control interface of DMA and the bus matrix Bus matr...

Страница 12: ...OT0 X 0 Main flash memory Flash The main flash memory is mapped to the boot space but it can still be accessed at its original address that is the contents of the flash memory can be accessed in two a...

Страница 13: ...e UID and capacity information of main memory area are stored in system memory area with a capacity of 3KB for APM32F030x4x6x8 8KB for APM32F030xC The capacity of the option byte area is 16Bytes 2 Fun...

Страница 14: ...0 0FFF 2K Main memory area Main memory area Page 62 0x0801 F000 0x0801 F7FF 2K Fan 31 Main memory area Page 63 0x0801 F800 0x0801 FFFF 2K Main memory area Main memory area Page 126 0x0800 8000 0x0800...

Страница 15: ...correct page erase or flash write operation is completed OCF of FMC_STS register will be set If OCIE interrupt is enabled an operation completion interrupt will be triggered Users need to note that t...

Страница 16: ...directly written and the corresponding value must be written to FMC_KEY according to the correct sequence to unlock FMC The KEY value is as follows KEY1 0x45670123 KEY2 0xCDEF89AB The wrong writing se...

Страница 17: ...its reverse code an option byte error OBE bit of FMC_ register is set to 1 will be triggered and this byte will be set to 0xFF The information of 16 bytes in the option byte area is shown in the tabl...

Страница 18: ...4KB 4 pages address of the main memory area 0 Write protection is turned on 1 Write protection is not turned on WRP0 Page 0 31 APM32F030x8 series products Each bit in WRPx controls the write protecti...

Страница 19: ...refetch Buffer Enable 0 Disable 1 Enable 5 PBSF R Prefetch Buffer Status Flag 0 In disabled state 1 In enabled state 31 6 Reserved Key register FMC_KEY Offset address 0x04 Reset value xxxx xxxx Field...

Страница 20: ...d 31 6 Reserved Control register 2 FMC_CTRL2 Offset address 0x10 Reset value 0x0000 0080 Field Name R W Description 0 PG R W Program Set this bit to 1 to program Flash 1 PAGEERA R W Page Erase Set thi...

Страница 21: ...ion 31 0 ADDR W Flash Address In programming operation the bit is written to the address to be programmed in page erasing this bit is written to the page to be erased Option bye control state register...

Страница 22: ...eserved 12 nBOOT1 R nBoot1 Mode Configure 13 VDDAMONI R VDDA Monitor 14 SRAMPARITY R SRAM Parity Check 15 Reserved 23 16 DATA0 R Data0 31 24 DATA1 R Data1 Write protection register FMC_WRTPROT Offset...

Страница 23: ...egister Address Mapping Register name Description Offset address SYSCFG_CFG1 Configuration register 1 0x00 SYSCFG_EINTCFG1 External interrupt register 1 0x08 SYSCFG_EINTCFG2 External interrupt registe...

Страница 24: ...DMA_CH4 12 TMR17DMARMP R W TMR17 DMA Request Remap This bit control remapping request of TMR17 0 No remapping TMR17_CH1 and TMR17_UP DMA_CH1 1 Remapping TMR17_CH1 and TMR17_UP DMA_CH2 15 13 Reserved 1...

Страница 25: ...Interrupt Sources Selected for Different Values EINTx 3 0 External interrupt source x000 PA x pin x001 PB x pin x010 PC x pin x011 PD x pin x100 Reserved x101 PF x pin Others Reserved Offset address...

Страница 26: ...Table 16 11 8 EINT6 R W EINT6 Configure These bits are controlled by software to be rewritten to select the external interrupt source of EINT6 The selected external interrupt sources represented by v...

Страница 27: ...bits are shown in Table 16 7 4 EINT13 R W EINT13 Configure These bits are controlled by software to be rewritten to select the external interrupt source of EINT13 The selected external interrupt sour...

Страница 28: ...SRAMEFLG RC_W1 SRAM Parity Error Flag When an SRAM parity error is detected this bit will be set by hardware This bit will be cleared when the software writes 1 0 No SRAM parity check bit error is de...

Страница 29: ...ock LSICLK Phase Locked Loop PLL Main clock output MCO Calibrate CAL Trim TRM Clock Security System CSS Non Maskable Interrupt NMI 5 2 Reset Functional Description The supported reset is divided into...

Страница 30: ...ntering the stop mode In these two cases if RSTSTDB bit in standby mode or RSTSTOP bit in stop mode in user selection byte is cleared the system will be reset rather than entering the standby or stop...

Страница 31: ...t source is as follows Software reset triggered by resetting RTCRST bit in RCM_RTCCTRL Power on reset POR reset A RTC domain reset will occur in case of any of the above events RTC region reset only a...

Страница 32: ...e signal can be generated by ordinary function signal transmitter in debugging crystal oscillator and other signal generators the waveform can be square wave sine wave or triangle wave with 40 60 duty...

Страница 33: ...startup stage LSECLK clock signal is not released until this bit is set to 1 by hardware If it is allowed in the clock interrupt register an interrupt request can be generated Internal Clock Source Th...

Страница 34: ...indicates whether the low speed internal oscillator is stable At startup stage the clock is not released until this bit is set to 1 by hardware If it is allowed in RCM_INT clock interrupt register LSI...

Страница 35: ...PCLK is clock signal of the peripheral connected to APB 3 FCLK is running clock of Arm Cortex M0 4 The frequency of AHB APB2 high speed APB and APB1 low speed APB domains can be configured through mu...

Страница 36: ...you must wait until the destination clock source is ready i e the destination clock source is stable CSS Clock Security System In order to prevent MCU from normal operation due to external crystal osc...

Страница 37: ...isabled Deep sleep mode The system can be debugged by setting the STOP_CLK_STS bit and STANDBY_CLK_STS bit in DBGMCU_CFG The system selects HSICLK as SYSCLK through interrupt in stop mode or reset sta...

Страница 38: ...hrough PLL this bit cannot be cleared 0 HSICLK RC oscillator is disabled 1 HSICLK RC oscillator is turned on 1 HSIRDYFLG R High Speed Internal Clock Ready Flag 0 HSICLK RC oscillator is not stable 1 H...

Страница 39: ...1 RCM_CFG1 Offset address 0x04 Reset value 0x0000 0000 All bits of this register are set or cleared by software Access Access in the form of word half word and byte with 0 to 2 wait cycles 1 or 2 wai...

Страница 40: ...ed as PLL clock source after 2 frequency division 1 HSECLK is used as PLL clock source 17 PLLHSEPSC R W HSECLK Prescaler Factor for PLL Clock Source Refer to Bit 0 of RCM_CFG2 21 18 PLLMULCFG R W PLL...

Страница 41: ...ill be cleared 0 No LSECLK ready interrupt 1 LSECLK ready interrupt occurred 2 HSIRDYFLG R HSICLK Ready Interrupt Flag When HSICLK is stable and HSIRDYEN bit is set to 1 this bit will be set to 1 by h...

Страница 42: ...LLRDYEN R W PLL Ready Interrupt Enable Enable PLL ready interrupt 0 Disable 1 Enable 13 HSI14RDYEN R W HSICLK14 Ready Interrupt Enable Enable the internal 14MHz RC oscillator ready interrupt 0 Disable...

Страница 43: ...et 4 1 Reserved 5 USART6 R W USART6 Reset 0 No effect 1 Reset 8 6 Reserved 9 ADC R W ADC Reset 0 No effect 1 Reset 10 Reserved 11 TMR1 R W TMR1 Timer Reset 0 No effect 1 Reset 12 SPI1 R W SPI1 Reset 0...

Страница 44: ...ed 4 TMR6 R W Timer 6 Reset 0 No effect 1 Reset 5 TMR7 R W Timer 7 Reset 0 No effect 1 Reset 7 6 Reserved 8 TMR14 R W Timer 14 Reset 0 No effect 1 Reset 10 9 Reserved 11 WWDT R W Window Watchdog Reset...

Страница 45: ...ord half word and byte without wait cycle All bits can be reset or cleared by software Note When the peripheral clock is not enabled the software cannot read the value of the peripheral register and t...

Страница 46: ...00 Access Access in the form of word half word and byte Usually there is no wait cycle However when the peripheral on the APB2 bus is accessed the waiting state will be inserted until the APB2 periphe...

Страница 47: ...Enable 0 Disable 1 Enable 31 23 Reserved APB peripheral clock enable register 1 RCM_APBCLKEN1 Offset address 0x1C Reset value 0x0000 0000 Access Access in the form of word half word and byte Usually...

Страница 48: ...ble 13 12 Reserved 14 SPI2 R W SPI 2 Clock Enable 0 Disable 1 Enable 16 15 Reserved 17 USART2 R W USART 2 Clock Enable 0 Disable 1 Enable 18 USART3 R W USART 3 Clock Enable 0 Disable 1 Enable 19 USART...

Страница 49: ...al Clock Bypass Mode Configure Bypass mode refers to the mode in which external clock is used as the LSECLK clock source otherwise the resonator is used as the LSECLK clock source 0 Non bypass mode 1...

Страница 50: ...Enable 1 LSIRDYFLG R Low Speed Internal Oscillator Ready Flag When LSICLK is stable this bit is set to 1 by hardware and when it is unstable it is cleared by hardware 0 Not ready 1 Ready 22 2 Reserve...

Страница 51: ...tchdog is reset it is set to 1 by hardware and cleared by software by writing RSTFLGCLR bit 0 Not occur 1 Occurred 31 LPWRRSTFLG R Low Power Reset Occur Flag When low power management is reset it is s...

Страница 52: ...word half word and byte without wait cycle Field Name R W Description 1 0 USART1SEL R W USRAT1 Clock Source Select Set or cleared by software The default value is 00 00 PCLK is used as USART1CLK 01 S...

Страница 53: ...ace can turn on HSICLK14 oscillator which is set or cleared by hardware 0 Can be turned on 1 Cannot be turned on 7 3 HSI14TRM R W HSICLK14 Trim The product has been calibrated to 14MHz 1 when leaving...

Страница 54: ...for stable operation of a system with working voltage of 2 0 3 6V and 1 5V power supply can be provided through the built in voltage regulator 6 3 Structure Block Diagram Figure 6 Power Supply Control...

Страница 55: ...area stops power supply and except for the standby circuit the content of register and SRAM will be lost 6 4 1 2 VDDA power domain Power the ADC HSICLK LSICLK TempSensor PLL and reset module through...

Страница 56: ...data saved are after wake up users can choose the most appropriate low power mode according to their needs The following table shows the difference among three low power modes Table 22 Difference amon...

Страница 57: ...program after WFI instruction If the system is woken up by event it will directly execute the program after WFE instruction Stop mode The characteristics of stop mode are shown in the table below Tabl...

Страница 58: ...PMU_CTRL Power control register 0x00 PMU_CSTS Power control state register 0x04 6 6 Register Functional Description Power control register PMU_CTRL Offset address 0x00 Reset value 0x0000 0000 cleared...

Страница 59: ...UP pin 0 Not occur 1 Occurred Note Enable the WKUP pin and an event will be detected when the WKUP pin is at high level 1 SBFLG R Standby Flag This bit is set to 1 by hardware and can only be cleared...

Страница 60: ...errupt channels excluding 16 Cortex M0 interrupt lines 2 4 programmable priority levels use 2 bit interrupt priority level 3 Low delay exception and interrupt processing 4 Power management control 5 R...

Страница 61: ...BRK UP TRG and COM interrupt TMR1_CC 14 Can be set 0x0000_0078 TMR1 capture compareinterrupt 15 0x0000_007C Reserved TMR3 16 Can be set 0x0000_0080 TMR3 interrupt TMR6 17 Can be set 0x0000_0084 TMR6...

Страница 62: ...hardware interrupt External signal 1 Set the trigger mode allow the interrupt request and enable corresponding peripheral interrupt line enable in NVIC 2 When an edge consistent with the configuration...

Страница 63: ...ripheral interrupt and the pending bit of peripheral NVIC interrupt channel clear the pending register in the NVIC interrupt 2 Wake up through EINT line events external hardware event Configure EINT l...

Страница 64: ...terrupt event register 0x10 EINT_IPEND Interrupt pending register 0x14 8 4 Register Functional Description Interrupt mask register EINT_IMASK Offset address 0x00 Reset value 0x7F84 0000 Field Name R W...

Страница 65: ...and Interrupt of Line x 0 Disable 1 Enable 18 Reserved 22 19 FTENx R W Enable the falling trigger event and interrupt on Line x Falling Trigger Event Enable and Interrupt of Line x 0 Disable 1 Enable...

Страница 66: ...enerates an interrupt event Pending register EINT_IPEND Offset address 0x14 Reset value 0xXXXX XXXX Field Name R W Description 17 0 IPENDx RC_W1 Interrupt Pending Occur of Line x Flag Whether the sele...

Страница 67: ...channel has three event flags and independent interrupts 6 Support circular transmission mode 7 The number of data transmission is programmable up to 65535 9 3 Functional Description DMA Request If t...

Страница 68: ...el only when the corresponding remapping bit of SYSCFG_CFGR1 register is cleared 2 This DMA request is mapped to the DAM channel only when the corresponding remapping bit of SYSCFG_CFGR1 register is s...

Страница 69: ...1 applies only to APM32F030x4x6x8 Table 2 applies only to APM32F030xC DMA Channel 9 3 2 1 Transmission data are programmable The data transmitted by DMA are programmable up to 65535 and the transmissi...

Страница 70: ...0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xA 0xB 0xC 0xD 0xE 0xF Source Target Figure 11 Transmission Width with Source of 32bits and Target of 8bits 0x0 0x1 Data0 Data1 0x2 0x3 Data2 Data3 0x4 0x5 Data4...

Страница 71: ...Data0 Data1 Data2 Data3 Data4 Data5 Data6 Data7 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 Source Target Figure 13 Transmission Width with Source of 16bits and Target of 32bits 0x0 0x1 Data0 Data1 0x2 0x3 Data2...

Страница 72: ...nt depends on the selected data width 9 3 2 4 Transmission mode There are two channel configuration modes non circular mode and circular mode Non circular mode When the data transmission is finished t...

Страница 73: ...to put the memory to the memory mode The DMA operation in this mode is performed under the condition of no peripheral request The CHEN bit of the configuration register DMA_CHCFGx is set to 1 and afte...

Страница 74: ...half transmission interrupt HT is generated on the channel these bits are set to 1 by hardware write 1 and clear on the corresponding bit of DMA_INTFCLR 0 Not generate 1 Generate 19 15 11 7 3 TERRFLGx...

Страница 75: ...W DMA Channel Enable 0 Disable 1 Enable 1 TCINTEN R W All Transfer Complete Interrupt Enable 0 Disable 1 Enable 2 HTINTEN R W Half Transfer Complete Interrupt Enable 0 Disable 1 Enable 3 TERRINTEN R W...

Страница 76: ...e channel is configured to auto reload mode it will be automatically reloaded to the previously configured value if the register is 0 data transmission will not occur regardless of whether the channel...

Страница 77: ...MA channel selection register DMA_CHSEL only apply to APM32F030xC Offset address 0xA8 Reset value 0x0000 0000 Field Name R W Description 3 0 CHSEL1 R W DMA Channel 1 Select DMA request mapping of Chan...

Страница 78: ...the query is completed the core and peripheral operation can be restored to continue to execute the program Supported debugging interface serial interface Note The hardware debug interface included i...

Страница 79: ...access Reset value 0xXXXX XXXX Field Name R W Description 11 0 EQR R Equipment Recognition This field indicates device ID 15 12 Reserved 31 16 WVR R Wafer Version Recognition This field indicates the...

Страница 80: ...ved Debug MCU APB1 freeze register DBGMCU_APB1F This register is used to configure MCU during debugging Involve some APB peripherals Freeze the timer counter Freeze I2C SMBus timeout Freeze supporting...

Страница 81: ...ved Debug MCU APB2 freeze register DBGMCU_APB2F This register is used to configure MCU during debugging Involve some APB peripherals Freeze the timer counter This register is reset asynchronously by P...

Страница 82: ...age 81 Field Name R W Description 18 TMR17_STS R W Configure TMR17 Work Status When Core is in Halted Whether TMR17 counter continues to work when the core stops work 0 Continue to work 1 Stop working...

Страница 83: ...annel Metal Oxide Semiconductor P MOS N channel Metal Oxide Semiconductor N MOS 11 2 Main Characteristics 1 Input mode Floating input Pull up input Pull down input 2 Output mode Push pull output Open...

Страница 84: ...on the I O port will be configured as floating input mode After reset the debug pin is in AF pull up or pull down state PA14 SWCLK in pull down mode PA13 SWDIO in pull up mode Input Mode In the input...

Страница 85: ...tput drive mode push pull open drain can be selected In output mode Schmitt trigger is opened Activate output buffer By configuring the pull up pull down register GPIOx_PUPD select whether to use pull...

Страница 86: ...ivate schmitt trigger input By configuring the pull up pull down register GPIOx_PUPD select whether to use pull up pull down resistors The data on the I O pin is sampled in each AHB clock cycle and st...

Страница 87: ...the GPIOx_ODATA register If BS and BC bits of GPIOx_BSC are set to 1 at the same time BS bit has the priority GPIOx_ BSC register can change the corresponding bit of the GPIOx_ODATA register and GPIOx...

Страница 88: ...multiplexing function in GPIOx_MODE When the I O port is configured with multiplexing function its input and output mode is as follows Open the output buffer Output buffer is driven by peripheral Acti...

Страница 89: ...is powered off it will lose PC13 PC14 PC15 GPIO function and at this time if the configuration of GPIO is not configured by RTC PC13 14 PC15 pin will be set as analog input mode For detailed informat...

Страница 90: ...31 0 OSSELy 1 0 R W PortxPin y Output Speed Select y 0 15 x0 Low speed 01 Medium speed 11 High speed The speed of configuration I O port is written by software Pport pull up pull down register GPIOx_...

Страница 91: ...Ay bit is cleared If BSy bit and BCy bit are set at the same time BSy has the priority Port lock register GPIOx_LOCK x A B This register protects the configuration of GPIO from being modified by mista...

Страница 92: ...escription 31 0 ALFSELy R W PortxPin y Alternate Function Select y 0 7 These bits can be read by software to configure the multiplexing function of the port ALFSELy selection 0000 AF0 0001 AF1 0010 AF...

Страница 93: ...ved Port reset register GPIOx_BR x A D F Offset address 0x28 Reset value 0x0000 0000 Field Name R W Description 15 0 BRy W PortxPin y Reset Configure y 0 15 These bits can only perform write operation...

Страница 94: ...imer that can count up down The function of general purpose timer is simpler than that of advanced timer The main differences are the total number of channels the number of complementary output channe...

Страница 95: ...ions and Terms of Pins Name Description TMRx_ETR External trigger signal of Timer x TMRx_CH1 TMRx_CH2 TMRx_CH3 TMRx_CH4 Channel 1 2 3 4 of Timer x TMRx_CHyN Complementary output channel y of Timer x T...

Страница 96: ...Timer input filter polarity ICx IC1 Input capture ICxPS IC1PS Input capture prescaler TRC Trigger capture BRK Breaking signal OCx OC1 Timer output coparison channel OCxREF OC1REF Output compare refere...

Страница 97: ...unter Auto reloading function 2 Clock source selection Internal clock External input External trigger Internal trigger 3 Input capture function Counting function PWM input mode measurement of pulse wi...

Страница 98: ...register TMRx_CH4 TMRx_CH3 TMRx_CH2 TMRx_CH1 TMRx_CHx TMRx_CHxN TMRx_CH3 TMRx_CH3N TMRx_CH4 TRGO Other timer DAC ADC ETRF Repeat counter TMRx_ETR 13 4 Functional Description Clock Source Selection The...

Страница 99: ...NT 8 bits Counter CNT There are three counting modes for the counter in the advanced timer Count up mode Count down mode Center aligned mode Count up mode Set to the count up mode by CNTDIR bit of con...

Страница 100: ...count down mode the counter will start to count down from the value of the auto reload TMRx_AUTORLD every time a pulse is generated the counter will decrease by 1 and when it becomes 0 the counter wil...

Страница 101: ...egister Center aligned mode Set to the center aligned mode by CNTDIR bit of configuration control register TMRx_CTRL1 When the counter is in center aligned mode the counter counts up from 0 to the val...

Страница 102: ...le in the advanced timer because of the existence of the repeat counter when an overrun unerrrun event occurs to the advanced timer the update event will be generated only when the value of the repeat...

Страница 103: ...of the timer first pass through the edge detector and input filter and then into the capture channel Each capture channel has a corresponding capture register When the capture occurs the value of the...

Страница 104: ...figured by OCxMOD bit in TMRx_CCMx register and can control the waveform of output signal in output compare mode Output compare application In the output compare mode the position polarity frequency a...

Страница 105: ...g Diagram AUTORLD CCx 0CxREF Figure 28 PWM1 Count down Mode Timing Diagram CCx AUTORLD 0CxREF Figure 29 PWM1 Center aligned Mode Timing Diagram AUTORLD CCx 0CxREF In PWM mode 2 if the value of the cou...

Страница 106: ...Diagram CCx AUTORLD 0CxREF Figure 32 PWM2 Center aligned Mode Timing Diagram CCx AUTORLD 0CxREF PWM Input Mode PWM input mode is a particular case of input capture In PWM input mode as only TI1FP1 an...

Страница 107: ...latched in TMRx_CC1 IC1 capture Cycle The value is latched in TMRx_CC2 0003 0005 Single pulse Mode The single pulse mode is a special case of timer compare output and is also a special case of PWM out...

Страница 108: ...hen idle MOEN 0 the output level after the dead time is 0 OCxOIS 1 amd OCxNOIS 1 When idle MOEN 0 the output level after the dead time is 1 4 RMOS bit in TMRx_BDT register Application environment of R...

Страница 109: ...put the idle level OSI Output disable output disabled first output the invalid level during the dead zone affected by the polarity and after it is received by dead zone output the idle level OIS Norma...

Страница 110: ...ed and the corresponding level is directly output according to the configuration instruction CCxSEL 00 for TMRx_CCMx register set CCx channel as output OCxMOD 100 101 for TMRx_CCMx register set to for...

Страница 111: ...Count in both TI1 and TI2 Level of relative signal High Low High Low High Low TI1FP1 Rising edge Count down Count up Count down Count up Falling edge Count up Count down Count up Count down TI2FP2 Ri...

Страница 112: ...update the register In the gated mode the enable of the counter depends on the high level of the selected input When the trigger input is high the clock of the counter will be started Once the trigger...

Страница 113: ...terrupt when an event occurs during operation Update event counter overrun underrun counter initialization Trigger event counter start stop internal external trigger Capture Compare event Breaking sig...

Страница 114: ...able all registers of the advanced timer are mapped to a 16 bit addressable address space Table 44 TMR1 Register Address Mapping Register name Description Offset address TMRx_CTRL1 Control register 1...

Страница 115: ...tware to start regular work when it is configured as the trigger mode it can be written to 1 by hardware 1 UD R W Update Disable Update event can cause AUTORLD PSC and CCx to generate the value of upd...

Страница 116: ...dify the values loaded to the counter when the buffer is enabled the program modification TMRx_AUTORLD will modify the values loaded to the counter in the next update event 0 Disable 1 Enable 9 8 CLKD...

Страница 117: ...OC1 Output Idle State Configure Only the level state after the dead time of OC1 is affected when MOEN 0 and OC1N is realized 0 OC1 0 1 OC1 1 Note When LOCKCFG bit in TMRx_BDT register is at the Level...

Страница 118: ...gnal of TRGI as the clock source to drive the counter to work 3 OCCSEL R W OCREF Clear Source Select This bit is used to select OCREF clear source 0 OCREF_CLR 1 ETRF 6 4 TRGSEL R W Trigger Input Signa...

Страница 119: ...be used at the same time with external clock mode 2 but TRGI cannot be connected to ETRF in such case when external clock mode 1 and external clock mode 2 are enabled at the same time the input of ex...

Страница 120: ...ble 1 Enable 11 CC3DEN R W Capture Compare Channel3 DMA Request Enable 0 Disable 1 Enable 12 CC4DEN R W Capture Compare Channel4 DMA Request Enable 0 Disable 1 Enable 13 COMDEN R W COM DMA Request Ena...

Страница 121: ...LG 5 COMIFLG RC_W0 COM Event Interrupt Generate Flag 0 COM event does not occur 1 COM interrupt waits for response After COM event is generated this bit is set to 1 by hardware and cleared by software...

Страница 122: ...uest will be generated at this time if CC1IFLG 1 it is required to configure CC1RCFLG 1 2 CC2EG W Capture Compare Channel2 Event Generation Refer to CC1EG description 3 CC3EG W Capture Compare Channel...

Страница 123: ...de SPMEN 1 otherwise the following output compare result is uncertain 6 4 OC1MOD R W Output Compare Channel1 Mode Configure 000 Freeze The output compare has no effect on OC1REF 001 The output value i...

Страница 124: ...IC1 is mapped on TI2 11 CC1 channel is input and IC1 is mapped on TRC and only works in internal trigger input Note This bit can be written only when the channel is disabled TMRx_CCEN bit CC1EN 0 3 2...

Страница 125: ...Note This bit can be written only when the channel is disabled TMRx_CCEN register CC3EN 0 2 OC3FEN R W Output Compare Channel3 Fast Enable 0 Disable 1 Enable This bit is used to improve the response...

Страница 126: ...ped on TRC and only works in internal trigger input Note This bit can be written only when the channel is disabled TMRx_CCEN register CC4EN 0 11 10 IC4PSC R W Input Capture Channel 4 Perscaler Configu...

Страница 127: ...hen CC1 channel is configured as input This bit together with CC1POL is used to define the polarity of TI1FP1 and TI2FP1 Note 1 On the complementary output channel if this bit is preloaded and CCPEN 1...

Страница 128: ...000 Field Name R W Description 7 0 REPCNT R W Repetition Counter Value When the count value of the repeat counter is reduced to 0 an update event will be generated and the counter will start counting...

Страница 129: ...cription 15 0 CC4 R W Capture Compare Channel 4 Value Refer to TMRx_CC1 Break and dead time register TMRx_BDT Offset address 0x44 Reset value 0x0000 Note According to the lock setting AOEN BRKPOL BRKE...

Страница 130: ...evel is output after the dead time 11 RMOS R W Run Mode Off state Configure Run mode means MOEN 1 disable means CcxEN 0 this bit describes the impact of different values for this bit on the output wav...

Страница 131: ...le the address DBADDR 7 of TMRx_CTRL1 means the address of the data to be written read Data transmission will occur to TMRx_CTRL1 address seven registers starting from DBADDR The data transmission wil...

Страница 132: ...eristics 1 Timebase unit Counter 16 bit counter count up count down and center aligned count Prescaler 16 bit programmable prescaler Auto reloading function 2 Clock source selection Internal clock Ext...

Страница 133: ...H1 TMRx_CHx TRGO Other timer DAC ADC ETRF Repeat counter Output control TMRx_CHx 0Cx 14 4 Functional Description Clock Source Selection The general purpose timer has four clock sources Internal clock...

Страница 134: ...r AUTORLD 16 bits Prescaler register PSC 16 bits Counter CNT There are three counting modes for the counter in the general purpose timer Count up mode Count down mode Center aligned mode Count up mode...

Страница 135: ...he counter is in count down mode the counter will start to count down from the value of the auto reload TMRx_AUTORLD every time a pulse is generated the counter will decrease by 1 and when it becomes...

Страница 136: ...egister Center aligned mode Set to the center aligned mode by CNTDIR bit of configuration control register TMRx_CTRL1 When the counter is in center aligned mode the counter counts up from 0 to the val...

Страница 137: ...will drive the counter CNT to count The prescaler has a buffer which can be changed during running Input Capture Input capture channel The general purpose timer has four independent capture compare ch...

Страница 138: ...d through capture Output Compare There are eight modes of output compare freeze channel x is valid level when matching channel x is invalid level when matching flip force is invalid force is valid PWM...

Страница 139: ...iagram in PWM mode 1 when CCx 5 AUTORLD 7 Figure 47 PWM1 Count up Mode Timing Diagram AUTORLD CCx 0CxREF Figure 48 PWM1 Count down Mode Timing Diagram CCx AUTORLD 0CxREF Figure 49 PWM1 Center aligned...

Страница 140: ...the output level will be invalid otherwise it will be valid Set the timing diagram in PWM mode 2 when CCx 5 AUTORLD 7 Figure 50 PWM2 Count up Mode Timing Diagram CCx AUTORLD 0CxREF Figure 51 PWM2 Coun...

Страница 141: ...0000 0001 0002 0003 0004 0005 0000 TI1 TMRx_CNT TMRx_CC1 TMRx_CC2 IC1 capture IC2 capture Counter reset IC2 capture Pulse width The value is latched in TMRx_CC1 IC1 capture Cycle The value is latched...

Страница 142: ...interface is as follows By setting SMFSEL bit of TMRx_SMCTRL register set the counter to count on the edge of TI1 channel TI2 channel or count on the edge of TI1 and TI2 at the same time Select the po...

Страница 143: ...n Count up The external incremental encoder can be directly connected with MCU not needing external interface logic so the comparator is used to convert the differential output of the encoder to digit...

Страница 144: ...update the register In the gated mode the enable of the counter depends on the high level of the selected input When the trigger input is high the clock of the counter will be started Once the trigger...

Страница 145: ...nerate an interrupt when an event occurs during operation Update event counter overrun underrun counter initialization Trigger event counter start stop internal external trigger Capture Compare event...

Страница 146: ...following table all registers of TMR3 are mapped to a 16 bit addressable address space Table 47 TMR3 Register Mapping Register name Description Offset address TMRx_CTRL1 Control register 1 0x00 TMRx_C...

Страница 147: ...re 1 UD R W Update Disable Update event can cause AUTORLD PSC and CCx to generate the value of update setting 0 Update event is allowed UEV An update event can occur in any of the following situations...

Страница 148: ...le 1 Enable 9 8 CLKDIV R W Clock Divide Factor For the configuration of dead time and digital filter CK_INT provides the clock and the dead time and the clock of the digital filter can be adjusted by...

Страница 149: ...nal of TRGI and generates the signal to update the register 101 Gated mode the slave mode timer starts the counter to work after receiving the TRGI high level signal it stops the counter when receivin...

Страница 150: ...led 01 ETR signal 2 divided frequency 10 ETR signal 4 divided frequency 11 ETR signal 8 divided frequency 14 ECEN R W External Clock Enable Mode2 0 Disable 1 Enable Setting ECEN bit has the same funct...

Страница 151: ...9 CC1DEN R W Capture Compare Channel1 DMA Request Enable 0 Disable 1 Enable 10 CC2DEN R W Capture Compare Channel2 DMA Request Enable 0 Disable 1 Enable 11 CC3DEN R W Capture Compare Channel3 DMA Req...

Страница 152: ...re or cleared when reading TMRx_CC1 register 2 CC2IFLG RC_W0 Capture Compare Channel2 i Interrupt Flag Refer to STS_CC1IFLG 3 CC3IFLG RC_W0 Capture Compare Channel3 Interrupt Flag Refer to STS_CC1IFLG...

Страница 153: ...e generated at this time if CC1IFLG 1 it is required to configure CC1RCFLG 1 2 CC2EG W Capture Compare Channel2 Event Generation Refer to CC1EG description 3 CC3EG W Capture Compare Channel3 Event Gen...

Страница 154: ...r matches the value of the capture compareregister OC1REF will be forced to be at low level 011 Output flaps when matching When the value of the counter matches the value of the capture compareregiste...

Страница 155: ...001 DIV 1 N 2 0010 DIV 1 N 4 0011 DIV 1 N 8 0100 DIV 2 N 6 0101 DIV 2 N 8 0110 DIV 4 N 6 0111 DIV 4 N 8 1000 DIV 8 N 6 1001 DIV 8 N 8 1010 DIV 16 N 5 1011 DIV 16 N 6 1100 DIV 16 N 8 1101 DIV 32 N 5 11...

Страница 156: ...ct This bit defines the input output direction and the selected input pin 00 CC4 channel is output 01 CC4 channel is input and IC4 is mapped on TI4 10 CC4 channel is input and IC4 is mapped on TI3 11...

Страница 157: ...is enabled 1 CC1POL R W Capture Compare Channel1 Output Polarity Configure When CC1 channel is configured as output 0 OC1 high level is valid 1 OC1 low level is valid When CC1 channel is configured a...

Страница 158: ...le Refer to CCEN_CC1EN 13 CC4POL R W Capture Compare Channel4 Output Polarity Configure Refer to CCEN_CC1POL 14 Reserved 15 CC4NPOL R W Capture Compare Channel4 Output Polarity Configure Refer to CCEN...

Страница 159: ...load is disabled OC1PEN 0 for TMRx_CCM1 register the written value will immediately affect the output compare results If the output compare preload is enabled OC1PEN 1 for TMRx_CCM1 register the writt...

Страница 160: ...DR 7 of TMRx_CTRL1 means the address of the data to be written read Data transmission will occur to TMRx_CTRL1 address seven registers starting from DBADDR The data transmission will change according...

Страница 161: ...up count down and center aligned count Prescaler 16 bit programmable prescaler Auto reloading function 2 Clock source Internal clock 3 Timer function Input capture Output compare PWM output mode Force...

Страница 162: ...to the count up mode by CNTDIR bit of configuration control register TMRx_CTRL1 When the counter is in count up mode the counter will count up from 0 every time a pulse is generated the counter will i...

Страница 163: ...rt to count down from the value of the auto reload TMRx_AUTORLD every time a pulse is generated the counter will decrease by 1 and when it becomes 0 the counter will start to count again from TMRx_AUT...

Страница 164: ...egister Center aligned mode Set to the center aligned mode by CNTDIR bit of configuration control register TMRx_CTRL1 When the counter is in center aligned mode the counter counts up from 0 to the val...

Страница 165: ...ster and after frequency division the clock will drive the counter CNT to count The prescaler has a buffer which can be changed during running Input Capture Input capture channel The general purpose t...

Страница 166: ...d through capture Output Compare There are eight modes of output compare freeze channel x is valid level when matching channel x is invalid level when matching flip force is invalid force is valid PWM...

Страница 167: ...iagram in PWM mode 1 when CCx 5 AUTORLD 7 Figure 64 PWM1 Count up Mode Timing Diagram AUTORLD CCx 0CxREF Figure 65 PWM1 Count down Mode Timing Diagram CCx AUTORLD 0CxREF Figure 66 PWM1 Center aligned...

Страница 168: ...the output level will be invalid otherwise it will be valid Set the timing diagram in PWM mode 2 when CCx 5 AUTORLD 7 Figure 67 PWM2 Count up Mode Timing Diagram CCx AUTORLD 0CxREF Figure 68 PWM2 Coun...

Страница 169: ...ter 0x14 TMRx_CCM1 Capture Compare mode register 1 0x18 TMRx_CCEN Capture Compare enable register 0x20 TMRx_CNT Counter register 0x24 TMRx_PSC Prescaler register 0x28 TMRx_AUTORLD Auto reload register...

Страница 170: ...it 00 tDTS tCK_INT 01 tDTS 2 tCK_INT 10 tDTS 4 tCK_INT 11 Reserved 15 10 Reserved DMA Interrupt enable register TMRx_DIEN Offset address 0x0C Reset value 0x0000 Field Name R W Description 0 UIEN R W U...

Страница 171: ...d In the count down mode the counter reads the value of TMRx_AUTORLD in center aligned mode or count up mode the counter will be cleared 1 CC1EG W Capture Compare Channel1 Event Generation 0 Invalid 1...

Страница 172: ...be at high level 010 The output value is low when matching When the value of the counter matches the value of the capture compareregister OC1REF will be forced to be at low level 011 Output flaps when...

Страница 173: ...apture Compare Channel1 Output Polarity Configure When CC1 channel is configured as output 0 OC1 high level is valid 1 OC1 low level is valid When CC1 channel is configured as input CC1POL and CC1NPOL...

Страница 174: ...CNT fCK_PSC PSC 1 Auto reload register TMRx_AUTORLD Offset address 0x2C Reset value 0xFFFF Field Name R W Description 15 0 AUTORLD R W Auto Reload Value When the value of auto reload is empty the coun...

Страница 175: ...Reset value 0x0000 Field Name R W Description 1 0 RMPSEL R W Timer Input 1 Remap Select 00 TMR14 channel 1 is connected to GPIO Refer to the data manual 01 TMR14 channel 1 is connected to RTCCLK 10 T...

Страница 176: ...up Prescaler 16 bit programmable prescaler Repeat counter 16 bit repeat counter Auto reloading function 2 Clock source selection Internal clock External input only applicable to TMR15 Internal trigge...

Страница 177: ...PSC Prescaler CNT counter Auto reload register Externa l clock mode 1 Interna l clock mode TRC ITR0 ITR1 ITR2 ITR3 ITR TRGI TI1FP1 TI2FP2 TI1F_ED Internal clock CK_INT CK_PSC CK_CNT TRGO Other timer...

Страница 178: ...ltering and the synchronization or cascading between timers can be realized The master mode timer can reset start stop or provide clock for the slave mode timer Timebase Unit The time base unit in the...

Страница 179: ...ose timer because of the existence of the repeat counter when an overrun unerrrun event occurs to the general purpose timer the update event will be generated only when the value of the repeat counter...

Страница 180: ...aler which is used to set how many events to capture at a time Input capture application Input capture is used to capture external events and can give the time flag to indicate the occurrence time of...

Страница 181: ...w level or flip by configuring the OCxMOD bit in TMRx_CCMx register and the CCxPOL bit in the output polarity TMRx_CCEN register When CCxIFLG 1 in TMRx_STS register if CCxIEN 1 in TMRx_DIEN register a...

Страница 182: ...iagram in PWM mode 1 when CCx 5 AUTORLD 7 Figure 74 PWM1 Count up Mode Timing Diagram AUTORLD CCx 0CxREF Figure 75 PWM1 Count down Mode Timing Diagram CCx AUTORLD 0CxREF Figure 76 PWM1 Center aligned...

Страница 183: ...the output level will be invalid otherwise it will be valid Set the timing diagram in PWM mode 2 when CCx 5 AUTORLD 7 Figure 77 PWM2 Count up Mode Timing Diagram CCx AUTORLD 0CxREF Figure 78 PWM2 Coun...

Страница 184: ...ut Mode 0005 0000 0001 0002 0003 0004 0005 0000 TI1 TMRx_CNT TMRx_CC1 TMRx_CC2 IC1 capture IC2 capture Counter reset IC2 capture Cycle width The value is latched in TMRx_CC1 IC1 capture Cycle The valu...

Страница 185: ...hen idle MOEN 0 the output level after the dead time is 0 OCxOIS 1 amd OCxNOIS 1 When idle MOEN 0 the output level after the dead time is 1 4 RMOS bit in TMRx_BDT register Application environment of R...

Страница 186: ...put the idle level OSI Output disable output disabled first output the invalid level during the dead zone affected by the polarity and after it is received by dead zone output the idle level OIS Norma...

Страница 187: ...ode In the forced output mode the compare result is ignored and the corresponding level is directly output according to the configuration instruction CCxSEL 00 for TMRx_CCMx register set CCx channel a...

Страница 188: ...p and provide clock source for the counter of the slave mode timer Figure 85 Interconnection of TMR15 and Other Timers TRGO TMR16 Master mode controller TRGO TMR3 Master mode controller TRGO TMR17 Mas...

Страница 189: ...5_REPCNT Repeat count register 0x30 TMR15_CC1 Channel 1 capture compare register 0x34 TMR15_CC2 Channel 2 capture compare register 0x38 TMR15_BDT Break and dead time register 0x44 TMR15_DCTRL DMA cont...

Страница 190: ...program modification TMR15_AUTORLD will modify the values loaded to the counter in the next update event 0 Disable 1 Enable 9 8 CLKDIV R W Clock Divide Factor For the configuration of dead time and d...

Страница 191: ...er is at the Level 1 2 or 3 this bit cannot be modified 9 OC1NOIS R W OC1N Output Idle State Configure Only the level state after the dead time of OC1 is affected when MOEN 0 and OC1N is realized 0 OC...

Страница 192: ...input edge detector TIF_ED 101 Channel 1 post filtering timer input TI1FP1 110 Channel 2 post filtering timer input TI2FP2 111 External trigger input ETRF 7 MSMEN R W Master slave Mode Enable 0 Inval...

Страница 193: ...er configure UEG 1 on TMR15_CEG register to generate update event and the counter needs to be initialized by software 3 URSSEL 0 and UD 0 on TMRx_CTRL1 register generate update event when the counter...

Страница 194: ...by hardware Note When an update event is generated the counter of the prescaler will be cleared but the prescaler factor remains unchanged In the count down mode the counter reads the value of TMRx_AU...

Страница 195: ...nternal trigger input Note This bit can be written only when the channel is disabled TMR15_CCEN register CC1EN 0 2 OC1FEN R W Output Compare Channel1 Fast Enable 0 Disable 1 Enable This bit is used to...

Страница 196: ...apped on TI1 11 CC2 channel is input and IC2 is mapped on TRC and only works in internal trigger input Note This bit can be written only when the channel is disabled TMR15_CCEN register CC2EN 0 10 OC2...

Страница 197: ...CC1EN R W Capture Compare Channel1 Output Enable When the capture compare channel 1 is configured as output 0 Output is disabled 1 Output is enabled When the capture compare channel 1 is configured as...

Страница 198: ...ble Refer to CCEN_CC1EN 5 CC2POL R W Capture Compare Channel2 Output Polarity Configure Refer to CCEN_CC1POL 6 Reserved 7 CC2NPOL R W Capture Compare Channel2 Complementary Output Polarity Configure R...

Страница 199: ...nabled OC1PEN 1 for TMRx_CCM1 register the written value will affect the output compare result when an update event is generated Channel 2 capture compare register TMR15_CC2 Offset address 0x38 Reset...

Страница 200: ...e dead time 11 RMOS R W Run Mode Off state Configure Run mode means MOEN 1 disable means CcxEN 0 this bit describes the impact of different values for this bit on the output waveform when MOEN 1 and C...

Страница 201: ...itted while the address DBADDR 7 of TMRx_CTRL1 means the address of the data to be written read Data transmission will occur to TMRx_CTRL1 address seven registers starting from DBADDR The data transmi...

Страница 202: ...at count register 0x30 TMRx_CC1 Channel 1 capture compare register 0x34 TMRx_BDT Break and dead time register 0x44 TMRx_DCTRL DMA control register 0x48 TMRx_DMADDR DMA address register of continuous m...

Страница 203: ...nabled the program modification TMRx_AUTORLD will modify the values loaded to the counter in the next update event 0 Disable 1 Enable 9 8 CLKDIV R W Clock Divide Factor For the configuration of dead t...

Страница 204: ...Idle State Configure Only the level state after the dead time of OC1 is affected when MOEN 0 and OC1N is realized 0 OC1N 0 1 OC1N 1 Note When LOCKCFG bit in TMRx_BDT register is at the Level 1 2 or 3...

Страница 205: ...pture compare channel 1 is configured as output 0 No matching occurred 1 The value of TMRx_CNT matches the value of TMRx_CC1 When the capture compare channel 1 is configured as input 0 Input capture d...

Страница 206: ...nter is stored in TMRx_CC1 register configure CC1IFLG 1 and if CC1IEN and CC1DEN bits are also set the corresponding interrupt and DMA request will be generated at this time if CC1IFLG 1 it is require...

Страница 207: ...The output value is high when matching When the value of counter CNT matches the value CCx of capture compare register OC1REF will be forced to be at high level 010 The output value is low when matchi...

Страница 208: ...hannel 1 is configured as input This bit determines whether the value CNT of the counter can be captured and enter TMRx_CC1 register 0 Capture is disabled 1 Capture is enabled 1 CC1POL R W Capture Com...

Страница 209: ...x0000 Field Name R W Description 15 0 PSC R W Prescaler Value Clock frequency of counter CK_CNT fCK_PSC PSC 1 Auto reload register TMRx_AUTORLD Offset address 0x2C Reset value 0xFFFF Field Name R W De...

Страница 210: ...16 TDTS For example assuming TDTS 125ns 8MHZ the dead time setting is as follows If the step time is 125ns the dead time can be set from 0 to 15875ns If the step time is 250ns the dead time can be se...

Страница 211: ...xN or force the output of idle state 1 When CCxEN and CCxNEN bits of the TMRx_CCEN register are set turn on OCx and OCxN output When the break input is valid it is cleared by hardware asynchronously N...

Страница 212: ...the second register is the LSB bit of the first data and the data will still be transmitted to seven registers 15 13 Reserved DMA address register of continuous mode TMRx_DMADDR Offset address 0x4C R...

Страница 213: ...ram Figure 86 Basic Timer Structure Block Diagram Counter CNT Auto reload register PSC Prescaler Trigger processing Controller TRGO CK_PSC CK_CNT Internal clockCK_INT 17 4 Functional Description Clock...

Страница 214: ...URSSEL bit in TMRx_CTRL1 register When an update event occurs both the auto reload register and the prescaler register will be updated Figure 87 Counter Timing Diagram the internal clock division fac...

Страница 215: ...by software to start regular work when it is configured as the trigger mode it can be written to 1 by hardware 1 UD R W Update Disable Update event can cause AUTORLD PSC and CCx to generate the value...

Страница 216: ...Offset address 0x10 Reset value 0x0000 Field Name R W Description 0 UIFLG RC_W0 Update Event Interrupt Generate Flag 0 Update event interrupt does not occur 1 Update event interrupt occurs When the c...

Страница 217: ...leared 15 1 Reserved Note The state of external I O pin connected to the standard OCx channel depends on the state of the OCx channel and the GPIO and AFIO registers Counter register TMRx_CNT Offset a...

Страница 218: ...data receiving IRTMR Transmit IRTMR is internally connected to TMR16 and TMR17 and the specific block diagram is as follows Figure 88 IRTMR Structure Block Diagram TMR16_CH1 IRTMR Information to be s...

Страница 219: ...dog consists of an 8 bit prescaler IWDT_PSC 12 bit count down counter 12 bit reload register IWDT_CNTRLD key register IWDT_KEY state register IWDT_STS and window register IWDT_WIN The independent watc...

Страница 220: ...gister IWDT_KEY Configure IWDT_PSC prescaler register write the value within 0 7 to IWDT_PSC The value of wait state register IWDT_STS is updated to 0x00 Configuration window register IWDT_WIN the val...

Страница 221: ...own counter CNT Configuration register CFG 4096 CNT CFG Write WWDT CTRL Reset CNTT6 bit clear PCLK1 PCLK1 from RCM clock controller 1 2 4 8 TBPSC Functional Description Enable window watchdog timer th...

Страница 222: ...alculation formula of window watchdog timer timeout is as follows TWWDT TPCLK1 2WTB T 5 0 1 Wherein TWWDT WWDT timeout TPCLK1 Clock cycle of APB in ms Table 56 Minimum Maximum timeout when PCLK1 36MHz...

Страница 223: ...to prevent the watchdog from resetting Write 0xCCCC and the watchdog will be enabled the hardware watchdog is unrestricted by this command word The read out value is 0x0000 31 16 Reserved Prescaler r...

Страница 224: ...ue of VDD power supply domain will be returned so if you want to read data you should ensure STS_WINUFLG 0 31 12 Reserved Note When the reload setting prescaler setting and window value resetting are...

Страница 225: ...x3F WWDT reset will be generated 7 WWDTEN R S Window Watchdog Enable This bit is set to 1 by software and can be cleared by hardware only after reset When WWDTEN 1 WWDT can generate a reset 0 Disable...

Страница 226: ...ame R W Description 0 EWIFLG RC_W0 Early Wakeup Interrupt Occur Flag 0 Not occur 1 When the counter value reaches 0x40 it is set to 1 by hardware if the interrupt is not enabled the bit will also be s...

Страница 227: ...second time and date registers with BCD coding as well as corresponding alarm registers and can realize timestamp function together with external pins It supports clock calibration function and time...

Страница 228: ...estamp controller LSECLK HSECLK 32 LSICLK Asynchronous prescaler 7 bit RTC calibration Synchronous prescaler 15bit Wake up prescaler 2 4 8 16 16bit reload wake up counter RTC output Subsecond Calendar...

Страница 229: ...d by RTC Pin configuration and function RTC_ALARM Output enable RTC_CALIB Output enable RTC_TAMP1 Input enable RTC_TS Input enable PC13EN PC13VAL RTC_ALARM Open drain output 1 No effect No effect No e...

Страница 230: ...it Clock source RTC has three clock sources RTC_CLK External LSECLK crystal oscillator External HSECLK crystal oscillator Internal LSICLK Different clock sources are configured through RCM peripheral...

Страница 231: ..._CLK as a calibration cycle by default In addition 219 and 218 RTC_CLK can be set as a calibration cycle through the registers CALW16 and CALW8 When LSECLK is used as RTC_CLK clock source the calibrat...

Страница 232: ...fRTC_CLK or the system is woken from low power mode it is recommended to read the calendar directly from the calendar counter If RSFLG bit is not set to 1 when reading the calender just at the stage...

Страница 233: ...as multiple tamper detection pins and each pin is enabled by a register bit separately In order to detect real tamper events better signal filtering can be configured and tamper detection polarity can...

Страница 234: ...generally used to observe the accuracy of RTC clock source and the observed value is used to calibrate the clock source 512Hz and 1Hz signal output sources can be selected through CALOSEL bit of RTC_C...

Страница 235: ...Unit in BCD Format Setup 6 4 SECT R W Second Ten s Place Unit in BCD Format Setup 7 Reserved 11 8 MINU R W Minute Ones Unit in BCD Format Setup 14 12 MINT R W Minute Ten s Place Unit in BCD Format Set...

Страница 236: ...eld Name R W Description 2 0 WUCLKSEL R W Wakeup Clock Select 000 RTC 16 001 RTC 8 010 RTC 4 011 RTC 2 10x clk_spre usually 1Hz 11x clk_spre usually 1Hz and add 216 to WUAUTORE counter value 3 TSETECF...

Страница 237: ...nt time increases by 1 hour to calibrate the winter time variation 18 BAKP R W Backup Value Setup This bit indicates whether the summer time has changed and is written by the user 19 CALOSEL R W Calib...

Страница 238: ...are when shifting operation is pending SOPFLG 1 or is in the mode that the shadow register is ignored RCMCFG 1 this bit is cleared by hardware in initialized mode or this bit can be cleared by softwar...

Страница 239: ...0x10 Power on reset value 0x007F 00FF System reset 0xXXXX XXXX Field Name R W Description 14 0 SPSC R W Synchronous Prescaler Coefficient ck_spre frequency ck_apre frequency SPSC 1 15 Reserved 22 16 A...

Страница 240: ...Alarm A 19 16 HRU R W Hour Ones Unit in BCD Format Setup 21 20 HRT R W Hour Ten s Place Unit in BCD Format Setup 22 TIMEFCFG R W Time Format Configure 0 AM or 24 hour system 1 PM 23 HRMEN R W Alarm A...

Страница 241: ...Delay seconds SFSEC SPSC 1 When it takes effect at the same time with ADD1SECEN the advance clock will be added by a fraction of a second the specific added value is determined by the following formul...

Страница 242: ...on reset value 0x0000 0000 System reset 0xXXXX XXXX Field Name R W Description 3 0 DAYU R Day Ones Unit in BCD Format Setup 5 4 DAYT R Day Ten s Place Unit in BCD Format Setup 7 6 Reserved 11 8 MONU...

Страница 243: ...t cannot be set to 1 at the same time with CAL16CFG bit When CAL8CFG 1 RECALF 1 0 is always 00 15 ICALFEN R W Increase Calibration Frequency Enable 0 RTCCLK pulse is not increased 1 One RTCCLK pulse i...

Страница 244: ...Frequency Select These bits determine the sampling frequency of each input of RTC_TAMPx 0x0 RTCCLK 32768 0x1 RTCCLK 16384 0x2 RTCCLK 8192 0x3 RTCCLK 4096 0x4 RTCCLK 2048 0x5 RTCCLK 1024 0x6 RTCCLK 51...

Страница 245: ...23 PC15EN R W PC15 Mode Enable 0 PC15 is controlled by GPIO configuration register and in standby mode PC15 is floating 1 When LSECLK is disabled PC15 is forced to push pull output mode 31 24 Reserve...

Страница 246: ...13 is not involved and only SUBSEC 12 0 is involved 0xE When comparing with alarm A SUBSEC 14 is not involved and only SUBSEC 13 0 is involved 0xF When comparing the alarm A 15 SUBSEC bits all take pa...

Страница 247: ...rts multiprocessor communication USART not only supports standard asynchronous transmission and receiving mode but also supports synchronous one way communication and hardware flow control mode USART...

Страница 248: ...iple interrupt sources The transmit register is empty Transmission is completed CTS changed The receive register cannot be empty Overload error Bus idle Parity error Noise error Overrun error Frame er...

Страница 249: ...bit USART data frame 0 0 Start bit 8 bit data stop bit 0 1 Start bit 7 bit data odd even parity check bit stop bit 1 0 Start bit 9 bit data stop bit 1 1 Start bit 8 bit data odd even parity check bit...

Страница 250: ...aud rate of communication in USART_BR register 5 Set UEN bit of USART_CTRL1 register to enable USART Wait for TXBEFLG bit of USART_STS register to be set to 1 6 Enable TXEN bit in USART_CTRL1 register...

Страница 251: ...k frame starts the break frame will not be transmitted To transmit two consecutive break frames the TXBFQ bit should be set after the stop bit of the previous break symbol 21 4 3 4 Idle frame The idle...

Страница 252: ...tem before USART is enabled 1 The clock source is selected according to the transmission speed and the possibility of use of USART in low power mode 2 The clock source frequency is fCK The range of co...

Страница 253: ...ng process of the receiver Set NEFLG flag on the rising edge of RXBNEFLG bit of USART_STS register Invalid data is transmitted from the shift register to USART_RXDATA register In single byte communica...

Страница 254: ...e rising edge 2 For all characters starting with 10xx in this case measure the length of the start bit and the first data bit the duration of the falling edge to ensure better accuracy when the signal...

Страница 255: ...2 Data 3 Data 4 Idle frame Address flag detection WUPMCFG 1 If the address flag bit is 1 this byte is regarded as the address The storage address of lower four bits of the address bytes will first be...

Страница 256: ...es USART_CK clock is determined by LBCPOEN bit of the register USART_CTRL2 The clock polarity of USART_CK is decided by CPOL bit of USART_CTRL2 register The phase of USART_CK is decided by the CPHA bi...

Страница 257: ...CFG0 1 DBLOGO 1 9 bit data RX from slave device TX from master device Start bit Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Stop bit Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 CK CPOL 0 CPHA...

Страница 258: ...ignal to turn on the control terminal of the external transceiver Lead time The time interval between the driver enable signal and the start bit of the first byte Controlled by DLTEN 4 0 of USART_CTRL...

Страница 259: ...ble DMA channel Interrupt Request Table 67 USART Interrupt Request Interrupt event Event flag bit Enable bit The receive register cannot be empty RXBNEFLG RXBNEIEN Overload error OVREFLG Line idle is...

Страница 260: ...SART6 Hardware flow control Multi buffer communication DMA Multi processor communication Synchronous Half duplex single line mode Receiving timeout interrupt Support the automatic baud rate detection...

Страница 261: ...rent operation and the prescaler and output of USART will stop working immediately The setting for USART will not be reset but the state flag in USART_STS will be reset 1 Reserved 2 RXEN R W Receive E...

Страница 262: ...CFG0 R W Data Bits Length Configure 0 1 start bit 8 data bits n stop bits 1 1 start bit 9 data bits n stop bits Set 1 or clear 0 by software This bit cannot be modified during transmission of data 13...

Страница 263: ...ield Name R W Description 3 0 Reserved 4 ADDRLEN R W Slave Address Length Configure 0 4 bit address 1 7 bit address This bit field can be set only when USART is not enabled 7 5 Reserved 8 LBCPOEN R W...

Страница 264: ...verter on TX line Set or cleared by software This bit can be set only when USART is not enabled 18 BINVEN R W Binary Data Inversion Enable 0 Positive Direct logic 0 L 1 H 1 Negative Reverse logic 0 H...

Страница 265: ...off or USAR is not enabled Control register 3 USART_CTRL3 Offset address 0x08 Reset value 0x0000 Field Name R W Description 0 ERRIEN R W Error interrupt Enable 0 Disable 1 Enabled when any bit among F...

Страница 266: ...om overrunning and being covered RXBNEFLG will not be set In smart card mode as a result no DMA request will be issued so wrong data will not be transmitted but the next correct data will be transmitt...

Страница 267: ...W Auto Baud Rate Detection Request Set this bit the ABRDFLG flag will be cleared and an automatic baud rate detection will be conducted when the data is received next time 1 TXBFQ W Transmit Break Fr...

Страница 268: ...can be cleared by reading the TXDATA register or setting RXDFQ 6 TXCFLG R Transmit Data Complete Flag 0 Transmit data is not completed 1 Transmit data is completed After the last frame of data is tran...

Страница 269: ...mit Break Frame Flag 0 Not transmit 1 Will transmit If TXBFQ bit is set this bit can be set to 1 by software when transmitting the stop bit of the break frame this bit is cleared by hardware 19 RXWFMU...

Страница 270: ...Reserved Receive data register USART_RXDATA Offset address 0x24 Reset value 0xXXXX Field Name R W Description 8 0 RXDATA R Receive Data Value Setup Include the received data byte Provide the parallel...

Страница 271: ...unication protocol In physical implementation I2C bus is composed of two signal lines SDA and SCL and a ground wire These two signal lines can be used for bidirectional transmission Two signal lines S...

Страница 272: ...imeout management 12 Can select an independent clock source 22 4 Structure Block Diagram Figure 101 I2C1 Functional Structure Diagram I2CCLK SYSCLK HSICLK Data controller Clock controller Shift regist...

Страница 273: ...r GPIO Logic GPIO Logic I2C2_SDA I2C2_SCL APB bus 22 5 Functional Description I2C Physical Layer Figure 103 Commonly Used I2C Communication Connection Diagram I2C master I2C slave 1 I2C slave 2 I2C sl...

Страница 274: ...mode is adopted to determine which device occupies the bus 7 Can program setup and hold time and program the high level time and low level time of SCL in I2C I2C Protocol Layer Characteristics of pro...

Страница 275: ...transmit data to the slave the data length is one byte and every time the master transmits one byte of data it needs to wait for the answer signal transmitted by the slave After all the bytes have bee...

Страница 276: ...filter Input delay of digital filter Delay caused by synchronous I2C_CLK clock of SCL tSYNC2 depends on SCL rising slope Input delay of analog filter Input delay of digital filter Delay caused by sync...

Страница 277: ...s 16x250 ns 4 0 s 4x125 ns 500 ns 2x125 ns 250 ns tSCL 100 s 10 s 2500ns 875ns DATAHT 0x2 0x2 0x3 0 tDATAHT 2x250 ns 500 ns 2x250 ns 500 ns 3x125 ns 375 ns 0ns DATAT 0x4 0x4 0x3 0x1 tDATAT 5x250 ns 12...

Страница 278: ...ituations The received address matches the enabled slave address and SCL clock is pulled down and will be released when ADDRMFLG flag is cleared by software ADDRMFLG flag bit can be cleared by setting...

Страница 279: ...col and one system has only one HOST Bus protocol There are 11 possible command protocols for any given device and one device can communicate with any or all of 11 protocols Address resolution protoco...

Страница 280: ...e or a master device occupies the clock the total low clock time is greater than t LOW SEXT Therefore the test condition of this parameter is that the slave is the only communication target of a full...

Страница 281: ...be generated Overrun Underrun error flag bit OVRURFLG When clock extension is disabled CLKSTRETCHD 1 underrun or overrun error will be detected under the following conditions in slave mode When recei...

Страница 282: ...are set by software when the slave address has been transmitted DMA cannot be used for transmission When all data are transmitted by DMA DMA must be initialized before START bit is set to 1 Slave mode...

Страница 283: ...lear register 0x1C I2C_PEC PEC register 0x20 I2C_RXDATA Receive data register 0x24 I2C_TXDATA Transmit data register 0x28 22 7 Register Functional Description Control register 1 I2C_CTRL1 Offset addre...

Страница 284: ...le 1 Enable 15 DMARXEN R W DMA Receive Enable 0 Disable 1 Enable 16 SBCEN R W Slave Byte Control Enable 0 Disable 1 Enable 17 CLKSTRETCHD R W Slave Mode Clock Stretching Disable 0 Enable 1 Disable Thi...

Страница 285: ...smission 1 Read transmission 11 SADDRLEN R W Slave Address Length Configure 0 7 bit addressing mode 1 10 bit addressing mode 12 ADDR10 R W Master Transmit 10 Bit Address Header Configure 0 Transmit 10...

Страница 286: ...ly when START bit is not set 24 RELOADEN R W NUMBYT Reload Mode Enable It can be set to 1 and cleared by software 0 Transmission is over after transmission of NUMBYT bytes 1 Reload NUMBYT after transm...

Страница 287: ...ss register 2 I2C_ADDR2 Offset address 0x0C Reset value 0x0000 0000 Field Name R W Description 0 Reserved 7 1 ADDR2 7 1 R W Master Address Setup Master address bit 7 1 10 8 ADDR2MSK R W Masks Master A...

Страница 288: ...high and low level counter tTIMINGPSC TIMINGPSC 1 x tI2C_CLK Note This register can be set only when I2CEN bit is not set Timeout register I2C_TIMEOUT Offset address 0x14 Reset value 0x0000 0000 Fiel...

Страница 289: ...s to generate TXINTFLG flag bit it can be cleared by hardware when I2CEN 0 2 RXBNEFLG R Receive Data Buffer Not Empty Flag 0 The receive buffer is empty 1 The receive buffer is not empty This bit can...

Страница 290: ...n occurs This bit can be set to 1 by hardware if overrun underrun error occurs in slave mode when CLKSTRETCHD 1 be cleared by software by setting OVRURCLR bit and be cleared by hardware when I2CEN 0 1...

Страница 291: ...l be cleared 4 NACKCLR W Receive Not Acknowledge Flag Clear Set this bit and NACKFLG flag bit of I2C_STS register will be cleared 5 STOPCLR W Stop Bit Detection Flag Clear Set this bit and STOPFLG fla...

Страница 292: ...hardware when I2CEN 0 31 8 Reserved Receive data register I2C_RXDATA Offset address 0x24 Reset value 0x0000 0000 Field Name R W Description 7 0 RXDATA R 8 Bit Receive Data Byte Data byte received from...

Страница 293: ...llows chips to communicate with external devices in half duplex full duplex synchronous and serial modes and can work in master or slave mode 23 3 Main Characteristics 1 Master and slave operation wit...

Страница 294: ...Slave hardware NSS mode The NSS signal is set to low level as the chip selection signal of the slave Communication format In SPI communication receiving data and transmitting data can be carried out a...

Страница 295: ...right aligned In the process of communication only the bits within the data word length range will be output with the clock NSS mode Software NSS mode Select to enable or disable this mode by configur...

Страница 296: ...slave mode In slave mode SCK pin receives the serial clock transmitted from the master device Configuration of slave mode Configure MSMCFG 0 in SPI_CTRL1 register and set it as slave mode Select the...

Страница 297: ...eneral purpose I O MISO in master mode MOSI in slave mode Receive only mode Turn off SPI output function by setting RXOMEN bit in SPI_CTRL1 register Release the send pin MOSI in master mode MISO in sl...

Страница 298: ...sed MISO transmits Bidirectional receiving mode of slave device BMEN 1 BMOEN 0 MOSI receives MISO is not used Figure 107 Connection in Full Duplex Mode Master device SCK MOSI NSS MISO Slave device SCK...

Страница 299: ...RXFIFO will be regarded to be empty and in the similar way the write access to the data frame to be transmitted is managed by TXBEFLG event When TXFIFO is less than or equal to half its capacity RXBN...

Страница 300: ...e set by configuring NSSPEN bit of SPI_CTRL1 register this mode take effect only when SPI is configured as Motorola master mode and captures the first edge In transmitting of this mode NSS pulse is ge...

Страница 301: ...g SPI_DATA register Sequence of clearing CRC values 1 Disable SPI SPIEN 0 2 Clear CRCEN bit 3 Set CRCEN bit to 1 4 Enable SPI SPIEN 1 Note When SPI works in slave mode the software must enable CRC ope...

Страница 302: ...an error occurred during transmission SPI disable After data transmission is over end the communication by closing SPI module When data are being transmitted or there are data in TXFIFO it is not all...

Страница 303: ...r an interrupt will be generated Busy flag BSYFLG BSYFLG flag is set and cleared by hardware which can indicate the state of SPI communication layer When BSYFLG 1 it indicates SPI is communicating BSY...

Страница 304: ...error flag bit CRCEFLG Enable CRC operation by setting CRCEN bit of SPI_CTRL1 register and CRC error flag can check whether the received data are valid When the value transmitted by SPI_TXCRC register...

Страница 305: ...a register 0x0C SPI_CRCPOLY SPI CRC polynomial register 0x10 SPI_RXCRC SPI receive CRC register 0x14 SPI_TXCRC SPI transmit CRC register 0x18 23 6 Register Functional Description These peripheral regi...

Страница 306: ...high 9 SSEN R W Software Slave Device Enable 0 Software NSS mode is disabled and the internal NSS level is determined by external NSS pin 1 Software NSS mode is enabled and the internal NSS level is...

Страница 307: ...r DMA Enable When RXDEN 1 once RXBNEFLG flag is set DMA request will be issued 0 Disable 1 Enable 1 TXDEN R W Transmit Buffer DMA Enable When this bit is set once TXBEFLG flag is set DMA request will...

Страница 308: ...010 11 bits 1011 12 bits 1100 13 bits 1101 14 bits 1110 15 bits 1111 16 bits Note When reserved bit is written by software the value will be forced to be 0111 8 bits 12 FRTCFG R W FIFO Reception Thres...

Страница 309: ...ed This bit is set by hardware and it can be cleared by writing 0 to this bit by software 6 OVRFLG R Overrun Occur Flag 0 Not occur 1 Occurred This bit is set by hardware and it can be cleared by writ...

Страница 310: ...nomial of CRC computing which can be modified and the reset value is 0x0007 SPI receive CRC register SPI_RXCRC Offset address 0x14 Reset value 0x0000 Field Name R W Description 15 0 RXCRC R Receive Da...

Страница 311: ...www geehy com Page 310 Field Name R W Description Note When BSYFLG bit is set to 1 the value of reading RXCRC register may be wrong...

Страница 312: ...el category External GPIO input channel One internal temperature sensor VSENSE input channel One internal reference voltage VREFINT input channel 5 High performance 12 bit 10 bit 8 bit or 6 bit config...

Страница 313: ...After calibration is completed CAL bit is automatically cleared by hardware The calibration factor is read in CDATA 6 0 bit of register ADC_DATA ADC Conversion Mode 24 3 3 1 Single conversion mode In...

Страница 314: ...annel 0 is converted and generates an EOCFLG event 2nd trigger Channel 1 is converted and generates an EOCFLG event 3rd trigger Channel 5 is converted and generates an EOCFLG event DISCEN bit is set t...

Страница 315: ...dge Data Register The data can be left aligned or right aligned which is determined by DALIGCFG bit of configuration register ADC_CFG1 ADC conversion results can be left aligned or right aligned and s...

Страница 316: ...ta conversion management The software controls data conversion Every time the conversion is completed EOCFLG will be set to 1 and the conversion results will be read from ADC_DATA register Then OVRMAG...

Страница 317: ...thod of adaptive ADC speed and adaptive system reading ADC data speed 24 3 11 2 Automatic shutdown mode This mode can greatly reduce the application power consumption and is suitable for applications...

Страница 318: ...Sequence Flag This bit is set to 1 by hardware and cleared by software 0 Sequence conversion not completed 1 Sequence conversion completed 4 OVREFLG RC_W1 ADC Overrun Event Flag This bit is set to 1...

Страница 319: ...enabled Note ADCEN bit can be set by software only when all bits of ADC_CTRL register are 0 1 ADCD R S ADC Disable This bit is set to 1 by software and cleared by hardware 0 Invalid 1 Disable ADC and...

Страница 320: ...a Resolution Configure 00 12 bits 01 10 bits 10 8 bits 11 6 bits 5 DALIGCFG R W Data Alignment Configure 0 Right alignment 1 Left alignment 8 6 EXTTRGSEL R W External Trigger Event Select These bits a...

Страница 321: ...og Watchdog Channel Select These bits are used to configure the input channel for the analog watchdog to monitor ADC 00000 Channel 0 00001 Channel 1 10010 Channel 18 Other values Reserved not used Not...

Страница 322: ...WDHT 11 0 R W Analog Watchdog High Threshold 31 28 Reserved Note These bits can be rewritten only when STARTCEN 0 ADC channel selection register ADC_CHSEL Offset address 0x28 Reset value 0x0000 0000 F...

Страница 323: ...CFG Offset address 0x308 Reset value 0x0000 0000 Field Name R W Description 21 0 Reserved 22 VREFEN R W VREFINT Enable 0 Disable 1 Enable 23 TSEN R W Temperature Sensor Enable 0 Disable 1 Enable 31 24...

Страница 324: ...th can be dynamically adjusted to reduce the number of times of calculating and writing The high and low levels of input data can be reversed in order to adapt to different little endian and big endia...

Страница 325: ...e 0x0000 0000 Field Name R W Description 0 RST R S Reset CRC Calculation Unit Set the data register to 0xFFFF FFFF It can only set this bit which shall be automatically cleared by hardware 4 1 Reserve...

Страница 326: ...www geehy com Page 325 Field Name R W Description 31 0 VALUE R W Initial CRC Value The CRC initial value is programmable and this bit is used to set the CRC initial value...

Страница 327: ...e the unique ID under no circumstances According to different usage users can choose to read the identity in byte half word or word 26 2 Register Functional Description 96 bit Unique Chip ID Base addr...

Страница 328: ...d read write function of GPIO port reset register 3 Modify the bit 31 13 of TMR14_option register to 31 2 4 Modify 10011 to 10010 in 30 26 of ADC configuration register 1 5 Modify the reset value of C...

Страница 329: ...words or graphics with or TM in this document are trademarks of Geehy Other product or service names displayed on Geehy products are the property of their respective owners 2 No Intellectual Property...

Страница 330: ...LAWS OF THE COUNTIRIES OF THE PRODUCTS SUPPLIERS GEEHY GEEHY DISTRIBUTORS AND USERS USERS ON BEHALF OR ITSELF SUBSIDIARIES AND AFFILIATED ENTERPRISES SHALLAGREE AND PROMISE TO ABIDE BY ALLAPPLICABLE...

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