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MS51

Nov. 28, 2019

Page

352

of 491

Rev 1.00

MS51

32K

SE
RIES

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CHNICAL RE

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UAL

6.7 Watchdog Timer (WDT)

6.7.1

Overview

The  MS51  provides  one  Watchdog  Timer  (WDT).  It  can  be  configured  as  a  time-out  reset  timer  to
reset whole device. Once the device runs in an abnormal status or hangs up by outward interference,
a  WDT  reset  recover  the  system.  It  provides  a  system  monitor,  which  improves  the  reliability  of  the
system. Therefore, WDT is especially useful for system that is susceptible to noise, power glitches, or
electrostatic  discharge.  The  WDT  also  can  be  configured  as  a  general  purpose  timer,  of  which  the
periodic interrupt serves as an event timer or a durational system supervisor in a monitoring system,
which is able to operate during Idle or Power-down mode. WDTEN[3:0] (CONFIG4[7:4]) initialize the
WDT to operate as a time-out reset timer or a general purpose timer.

The Watchdog time-out interval is determined by the formula

64

×

scalar

divider

clock

×

F

1

LIRC

, where

F

LIRC

is the frequency of internal 10 kHz oscillator. The following table shows an example of the

Watchdog time-out interval with different pre-scales.

WDPS.2

WDPS.1

WDPS.0

Clock Divider Scale

WDT Time-Out Timing

[1]

0

0

0

1/1

6.40 ms

0

0

1

1/4

25.60 ms

0

1

0

1/8

51.20 ms

0

1

1

1/16

102.40 ms

1

0

0

1/32

204.80 ms

1

0

1

1/64

409.60 ms

1

1

0

1/128

819.20 ms

1

1

1

1/256

1.638 s

Note:

This is an approximate value since the deviation of LIRC.

Table 6.7-1 Watchdog Timer-out Interval Under Different Pre-scalars

Since the limitation of the maxima vaule of WDT timer delay. To up MS51 from idle mode or power
down mode suggest use WKT function see

Chapter 6.7.4 Control Registers of Watchdog Timer

Factory default value: 1111 1111b

Description

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Содержание NuMicro MS51 32K Series

Страница 1: ...the exclusive intellectual property of Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton Nuvoton is providing this document only for reference purposes of NuM...

Страница 2: ...kage Pin Diagram 20 4 2 MS51 32K Series Pin Description 21 5 BLOCK DIAGRAM 25 5 1 MS51 32K Series Block Diagram 25 6 FUNCTIONAL DESCRIPTION 26 6 1 Memory Organization 26 6 1 1 Overview 26 6 1 2 Progra...

Страница 3: ...Reset Timer 354 6 7 3 General Purpose Timer 355 6 7 4 Control Registers of Watchdog Timer 357 6 8 Self Wake Up Timer WKT 359 6 8 1 Overview 359 6 8 2 Control register of WKT 360 6 9 Serial Port UART0...

Страница 4: ...I Interrupt 435 6 12 9Control Register of SPI 436 6 13 12 Bit Analog To Digital Converter ADC 441 6 13 1Overview 441 6 13 2Functional Description 441 6 13 3Control Registers of ADC 447 6 14 Auxiliary...

Страница 5: ...MS51 Nov 28 2019 Page 5 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 11 2 Instruction Set 486 12 REVISION HISTORY 490...

Страница 6: ...Reloading 268 Figure 6 3 2 CONFIG2 Power On Reset Reloading 270 Figure 6 4 1 Quasi Bidirectional Mode Structure 273 Figure 6 4 2 Push Pull Mode Structure 273 Figure 6 4 3 Input Only Mode Structure 27...

Страница 7: ...2 C Bus Interconnection 408 Figure 6 11 2 I 2 C Bus Protocol 409 Figure 6 11 3 START Repeated START and STOP Conditions 409 Figure 6 11 4 Master Transmits Data to Slave by 7 bit 410 Figure 6 11 5 Mast...

Страница 8: ...7 1 1 NuMicro MS51 Power supply circuit 469 Figure 7 2 1 NuMicro MS51 Peripheral interface circuit 470 Figure 7 3 1 nRESET Reset Waveform 472 Figure 7 3 2 Low Voltage Reset LVR Waveform 473 Figure 7...

Страница 9: ...cteristics of Each Interrupt Source 238 Table 6 3 1 IAP Modes and Command Codes 250 Table 6 4 1 Configuration for Different I O Modes 272 Table 6 6 1 PWM Pin Define And Enable Control Register 319 Tab...

Страница 10: ...T one 16 bit auto reload Timer3 for general purpose or baud rate generator two UARTs with frame error detection and automatic address recognition three ISO 7816 3 interfaces one SPI one I2 C six basic...

Страница 11: ...ytes of APROM for User Code 4 3 2 1 Kbytes of Flash for loader LDROM configure from APROM for In System Programmable ISP Flash Memory accumulated with pages of 128 Bytes from APROM by In Application P...

Страница 12: ...from LIRC Able self Wake up wake up from Power down or Idle mode and auto reload count value Supports Interrupt PWM Up To 12 output pins can be selected Supports maximum clock source frequency up to...

Страница 13: ...s Multi master bus no central master 7 bit addressing mode Standard mode 100 kbps and Fast mode 400 kbps Supports 8 bit time out counter requesting the I2 C interrupt if the I2 C bus hangs up and time...

Страница 14: ...rd interrupt pins INT0 and INT1 Supports high drive and high sink current I O I O pin internal pull up or pull down resistor enabled in input mode Maximum I O Speed is 24 MHz Enabling the pin interrup...

Страница 15: ...1 4 12 4 5 2 1 1 7 ch TSSOP14 MS51XB9AE 16 1 4 18 4 6 2 1 1 8 ch QFN20 3 MS51XB9BE 16 1 4 18 4 6 2 1 1 8 ch QFN20 3 MS51FB9AE 16 1 4 18 4 6 2 1 1 8 ch TSSOP20 MS51FC0AE 32 2 4 18 4 8 3 2 1 1 10 ch TSS...

Страница 16: ...Line Package Flash SRAM Reserve Temperature 1T 8051 Industry 51 Base B MSOP10 3x3 mm D TSSOP14 4 4x5 0 mm E TSSOP28 4 4x9 7 mm F TSSOP20 4 4x6 5 mm I SOP8 4x5 mm O SOP20 300 mil P LQFP32 7x7 mm T QFN3...

Страница 17: ...3 ADC_CH5 P0 4 PWM2_CH0 UART3_TXD T0 PWM0_CH2 IC6 ADC_CH4 P0 5 UART0_TXD ADC_CH3 P0 6 UART0_RXD ADC_CH2 P0 7 UART3_RXD PWM3_CH1 P3 4 nRESET P2 0 SPI0_MOSI UART2_TXD INT0 OSCIN ADC_CH1 P3 0 SPI0_CLK UA...

Страница 18: ..._CH0 UART4_TXD P2 4 ADC_CH12 T0 P1 3 STADC I2C0_SCL ADC_CH13 P1 4 PWM0_CH1 I2C0_SDA PWM0_BRAKE ADC_CH14 PWM1_CH1 P3 7 UART1_TXD P3 6 UART1_RXD P0 1 PWM0_CH4 SPI0_MISO IC4 HXTOUT PWM3_CH0 P0 0 PWM0_CH3...

Страница 19: ...1 P0 2 ICE_CLK I2C0_SCL UART1_RXD P3 3 PWM0_CH0 CLKO PWM0_BRAKE P0 1 PWM0_CH4 SPI0_MISO IC4 HXTOUT PWM3_CH0 P0 0 PWM0_CH3 SPI0_MOSI IC3 UART1_RXD T1 HXTIN PWM2_CH1 P1 0 PWM0_CH2 SPI0_CLK IC2 UART1_TXD...

Страница 20: ..._CH2 P0 7 nRESET P2 0 SPI0_MOSI UART2_TXD INT0 OSCIN ADC_CH1 P3 0 SPI0_CLK UART2_RXD INT1 ADC_CH0 P1 7 V SS UART1_TXD I2C0_SDA ICE_DAT P1 6 P1 2 PWM0_CH0 IC0 UART3_TXD PWM1_CH0 P1 3 STADC I2C0_SCL ADC...

Страница 21: ...Input capture channel 4 SPI0_MISO SPI master input slave output XT1_OUT External 4 24 MHz high speed crystal output pin 15 18 19 26 P0 2 Port 0 bit 2 I2C0_SCL I 2 C clock UART1_RXD UART1 receive inpu...

Страница 22: ...lock output 10 13 13 20 P1 2 Port 1 bit 2 PWM0_CH0 PWM0 output channel 0 PWM1_CH0 PWM1 output channel 0 IC0 Input capture channel 0 UART3_TXD 6 UART3 transmit data output SC1_CLK 6 Smart Card 1 clock...

Страница 23: ...0 PWM1 output channel 0 UART4_TXD 6 UART4 transmit data output SC2_CLK 6 Smart card 2 clock pin 8 13 P2 4 Port 2 bit 4 ADC_CH12 ADC input channel 12 T0 External count input to Timer Counter 0 or its t...

Страница 24: ...nterrupt pin This feature is not listed in multi function description See Chapter 6 4 3 Pin Interrupt PIT 2 UART0_TXD and UART0_RXD pins are software exchangeable by UART0PX AUXR1 2 3 I2C alternate fu...

Страница 25: ...ake up Timer Timer 3 UART2 3 4 ISO 7816 3 port 8 bit Internal Bus AIN0 7 9 15 STADC UART2 3 4_TX UART2 3 4_RX UART0 1_RX UART0 1_TX SPI0_MOSI SPI0_SS SPI0_SCK SPI0_MISO ICAP0 2 T1 T0 6 3 32 KB APROM F...

Страница 26: ...rrupt causes the CPU to jump to that location with where it commences execution of the interrupt service routine ISR External Interrupt 0 for example is assigned to location 0003H If External Interrup...

Страница 27: ...32 Kbytes 110 LDROM is 1 Kbytes APROM is 31 Kbytes 101 LDROM is 2 Kbytes APROM is 30 Kbytes 100 LDROM is 3 Kbytes APROM is 29 Kbytes 0xx LDROM is 4 Kbytes APROM is 28 Kbytes 1 The logic boundary addre...

Страница 28: ...non secured mode the last byte is 0xFF The access behavior of SPROM is the same with APROM and LDROM All area can be read by CPU or ISP command and can be erased and programmed by ISP command 2 SPROM...

Страница 29: ...ved 2 RPD Reset pin disable 1 The reset function of P2 0 nRST pin Enabled P2 0 nRST functions as the external reset pin 0 The reset function of P2 0 nRST pin Disabled P2 0 nRST functions as an input o...

Страница 30: ...E 2 0 R W Factory default value 1111 1111b Bit Name Description 2 0 LDSIZE 2 0 LDROM size select Part number is MS51 111 No LDROM APROM is 32 Kbytes 110 LDROM is 1 Kbytes APROM is 31 Kbytes 101 LDROM...

Страница 31: ...BOIAP Brown out inhibiting IAP This bit decides whether IAP erasing or programming is inhibited by brown out status This bit is valid only when brown out detection is enabled 1 IAP erasing or program...

Страница 32: ...RENCE MANUAL CONFIG3 7 6 5 4 3 2 1 0 CKFS 1 0 R W Factory default value 1111 1111b Bit Name Description 7 6 CKFS 1 0 Clock filter time select Enable clock filter It increases noise immunity and EMC ca...

Страница 33: ...4 WDTEN 3 0 WDT enable This field configures the WDT behavior after MCU execution 1111 WDT is Disabled WDT can be used as a general purpose timer via software control 0101 WDT is Enabled as a time out...

Страница 34: ...all 80C51 devices The lowest 32 bytes as general purpose registers are grouped into 4 banks of 8 registers Program instructions call these registers as R0 to R7 Two bits RS0 and RS1 in the Program Sta...

Страница 35: ...6 37 3B 3A 39 38 3C 3D 3E 3F 43 42 41 40 44 45 46 47 4B 4A 49 48 4C 4D 4E 4F 53 52 51 50 54 55 56 57 5B 5A 59 58 5C 5D 5E 5F 63 62 61 60 64 65 66 67 6B 6A 69 68 6C 6D 6E 6F 73 72 71 70 74 75 76 77 7B...

Страница 36: ...de below Note that the stack pointer cannot be located in any part of XRAM XRAM demo code Assembler MOV R0 23H write 5AH to XRAM with address 23H MOV A 5AH MOVX R0 A MOV R1 23H read from XRAM with add...

Страница 37: ...S51 contains all the SFR presenting in the standard 8051 However some additional SFR are built in Therefore some of unused bytes in the original 8051 have been given new functions The SFR are listed b...

Страница 38: ...Register SFR Address Reset Value SFRS 91H All page 0000_0000 b 7 6 5 4 3 2 1 0 SFRPAGE1 SFRPAGE0 R W R W Bit Name Description 1 0 SFRPAGE 1 0 SFR page select 0 Instructions access SFR page 0 1 Instruc...

Страница 39: ...ADDR ADCRL ADCRH T3CON RL3 RH3 TA 1 PWM0C4H PWM0C5H PIOCON1 2 PWM2PL PWM2_CH0L PWM2_CH1L PWM2CON0 PWM2CON1 PWM2INTC 0 B8 IP SADEN SADEN_1 SADDR_1 I2DAT I2STAT I2CLK I2TOC 1 2 PWM2PH PWM2_CH0H PWM2_CH1...

Страница 40: ...EL1 BSEL0 0000 0000b SCON_1 Serial port 1 control F8H A SM0_1 FE_1 SM1_1 SM2_1 REN_1 TB8_1 RB8_1 TI_1 RI_1 0000 0000b EIPH Extensive interrupt priority high F7H 0 PT2H PSPIH PFBH PWDTH PPWMH PCAPH PPI...

Страница 41: ...CHS1 ADCHS0 0000 0000b C1H Input capture 1 high byte E7H 0 C1H 7 0 0000 0000b E7H 1 SC1TSR SC1 Transfer Status Register E7H 2 ACT BEF FEF PEF TXEMPTY TXOV RXEMPTY RXOV 0000 1010b C1L Input capture 1 l...

Страница 42: ...0111b Y PNP PWM0 negative polarity D6H 0 PNP5 PNP4 PNP3 PNP2 PNP1 PNP0 0000 0000b D6H 1 PWM3INT C PWM3 Interrupt Control D6H 2 INTTYP1 INTTYP0 INTSEL2 INTSEL1 INTSEL0 0000 0000b PWM0C3 H PWM0 channel...

Страница 43: ...PWM0C5 H PWM0 channel 5 duty high byte C5H 1 PWM0C5 15 8 0000 0000b PWM2CO N1 PWM2 control 1 C5H 2 PWMMOD1 PWMMOD0 PWMTYP PWMDIV2 PWMDIV1 PWMDIV0 0000 0000b T3CON Timer 3 control C4H 0 SMOD_1 SMOD0_1...

Страница 44: ...L PWM1 channel 1 duty low byte B3H 2 PWM1_CH1 7 0 0000 0000b P0M2 P0 mode select 2 B2H 0 P0M2 7 P0M2 6 P0M2 5 P0M2 4 P0M2 3 P0M2 2 P0M2 1 P0M2 0 0000 0000b P0SR P0 slew rate B2H 1 P0SR 7 P0SR 6 P0SR 5...

Страница 45: ...0DG 0000 0000b IAPTRG IAP trigger A4H 0 IAPGO 0000 0000b Y A4H 1 AUXR5 Auxiliary Register 5 A4H 2 CLOP T0P PWM3_CH 1P1 PWM3_CH 1P0 PWM3_CH 0P1 PWM3_CH 0P0 0000 0000b BODCON 0 Brown out detection contr...

Страница 46: ...b Y 96H 1 96H 2 0000 0000b CKDIV Clock divider 95H 0 CKDIV 7 0 0000 0000b 95H 1 P3UP Port 3 Pull Up resister control 95H 2 P3UP 7 P3UP 6 P3UP 5 P3UP 4 P3UP 3 P3UP 2 P3UP 1 P3UP 0 0000 0000b CAPCON2 In...

Страница 47: ...DCBA2 ADCBA1 ADCBA0 0000 0000b RCTRIM0 Internal RC trim value high byte 84H 0 HIRCTRIM 8 1 0000 0000b Y 84H 1 ADCBAL ADC RAM Base Address Low Byte 84H 2 ADCBA 7 0 0000 0000b DPH Data pointer high byte...

Страница 48: ...tatus Pn Port Bit addressable Register SFR Address Reset Value P0 80H All pages Bit addressable 1111_1111 b P1 90H All pages Bit addressable 1111_1111 b P2 A0H All pages Bit addressable 0011_1111 b P3...

Страница 49: ...81H All pages 0000_0111b 7 6 5 4 3 2 1 0 SP 7 0 R W Bit Name Description 7 0 SP 7 0 Stack pointer The Stack Pointer stores the scratch pad RAM address where the stack begins It is incremented before...

Страница 50: ...lue DPL 82H All pages 0000_0000b 7 6 5 4 3 2 1 0 DPL 7 0 R W Bit Name Description 7 0 DPL 7 0 Data pointer low byte This is the low byte of 16 bit data pointer DPL combined with DPH serve as a 16 bit...

Страница 51: ...lue DPH 83H All pages 0000_0000b 7 6 5 4 3 2 1 0 DPH 7 0 R W Bit Name Description 7 0 DPH 7 0 Data pointer high byte This is the high byte of 16 bit data pointer DPH combined with DPL serve as a 16 bi...

Страница 52: ...Reload Low Byte Register SFR Address Reset Value RWKL 86H Page 0 0000 0000b 7 6 5 4 3 2 1 0 RWK 7 0 R W Bit Name Description 7 0 RWK 7 0 WKT reload low byte The RWKL register is the low byte of the 16...

Страница 53: ...load High Byte Register SFR Address Reset Value RWKH 97H Page 2 0000 0000b 7 6 5 4 3 2 1 0 RWK 15 8 R W Bit Name Description 7 0 RWK 15 8 WKT reload high byte The RWKH register is the low byte of the...

Страница 54: ...flag that can be set or cleared by user via software 1 PD Power down mode Setting this bit puts CPU into Power down mode Under this mode both CPU and peripheral clocks stop and Program Counter PC sus...

Страница 55: ...t or cleared by software 4 TR0 Timer 0 run control 0 Timer 0 Disabled Clearing this bit will halt Timer 0 and the current count will be preserved in TH0 and TL0 1 Timer 0 Enabled 3 IE1 External interr...

Страница 56: ...1 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 0 IT0 External interrupt 0 type select This bit selects by which type that INT0 is triggered 0 INT0 is low level triggered 1...

Страница 57: ...e external pin T1 5 M1 Timer 1 mode select M1 M0 Timer 1 Mode 0 0 Mode 0 13 bit Timer Counter 0 1 Mode 1 16 bit Timer Counter 1 0 Mode 2 8 bit Timer Counter with auto reload from TH1 1 1 Mode 3 Timer...

Страница 58: ...ECHNICAL REFERENCE MANUAL TL0 Timer 0 Low Byte Register SFR Address Reset Value TL0 8AH Page0 0000_0000b 7 6 5 4 3 2 1 0 TL0 7 0 R W Bit Name Description 7 0 TL0 7 0 Timer 0 low byte The TL0 register...

Страница 59: ...ECHNICAL REFERENCE MANUAL TL1 Timer 1 Low Byte Register SFR Address Reset Value TL1 8BH Page0 0000_0000b 7 6 5 4 3 2 1 0 TL1 7 0 R W Bit Name Description 7 0 TL1 7 0 Timer 1 low byte The TL1 register...

Страница 60: ...HNICAL REFERENCE MANUAL TH0 Timer 0 High Byte Register SFR Address Reset Value TH0 8CH Page0 0000_0000b 7 6 5 4 3 2 1 0 TH0 7 0 R W Bit Name Description 7 0 TH0 7 0 Timer 0 high byte The TH0 register...

Страница 61: ...HNICAL REFERENCE MANUAL TH1 Timer 1 High Byte Register SFR Address Reset Value TH1 8DH Page0 0000_0000b 7 6 5 4 3 2 1 0 TH1 7 0 R W Bit Name Description 7 0 TH1 7 0 Timer 1 high byte The TH1 register...

Страница 62: ...the overflow of Timer 1 4 T1M Timer 1 clock mode select 0 The clock source of Timer 1 is the system clock divided by 12 It maintains standard 8051 compatibility 1 The clock source of Timer 1 is direct...

Страница 63: ...bal interrupt are enabled setting this bit will make CPU execute WKT interrupt service routine This bit is not automatically cleared via hardware and should be cleared via software 3 WKTR WKT run cont...

Страница 64: ...L SFRS SFR Page Selection Register SFR Address Reset Value SFRS 91H All page 0000_0000b 7 6 5 4 3 2 1 0 SFRPAGE1 SFRPAGE0 R W R W Bit Name Description 1 0 SFRPAGE 1 0 SFR page select 0 Instructions ac...

Страница 65: ...enable 0 Input capture channel 1 Disabled 1 Input capture channel 1 Enabled 4 CAPEN0 Input capture 0 enable 0 Input capture channel 0 Disabled 1 Input capture channel 0 Enabled 2 CAPF2 Input capture...

Страница 66: ...LS 1 0 CAP0LS 1 0 R W R W R W Bit Name Description 5 4 CAP2LS 1 0 Input capture 2 level select 00 Falling edge 01 Rising edge 10 Either Rising or falling edge 11 Reserved 3 2 CAP1LS 1 0 Input capture...

Страница 67: ...n 6 ENF2 Enable noise filer on input capture 2 0 Noise filter on input capture channel 2 Disabled 1 Noise filter on input capture channel 2 Enabled 5 ENF1 Enable noise filer on input capture 1 0 Noise...

Страница 68: ...er Register SFR Address Reset Value CKDIV 95H Page0 0000_0000b 7 6 5 4 3 2 1 0 CKDIV 7 0 R W Bit Name Description 7 0 CKDIV 7 0 Clock divider The system clock frequency FSYS follows the equation below...

Страница 69: ...or disabled 1 External clock P00 input is enabled and stable 5 HIRCST High speed internal oscillator 16 MHz status 0 High speed internal oscillator is not stable or disabled 1 High speed internal osc...

Страница 70: ...RCEN High speed internal oscillator 16 MHz enable 0 The high speed internal oscillator Disabled 1 The high speed internal oscillator Enabled Note that once IAP is enabled by setting IAPEN CHPCON 0 the...

Страница 71: ...2 and FSYS 2 0 The clock runs at FSYS 12 baud rate It maintains standard 8051 compatibility 1 The clock runs at FSYS 2 baud rate for faster serial communica tion Mode 1 This bit checks valid stop bit...

Страница 72: ...after the 8 th bit in Mode 0 or the last data bit in other modes When the serial port 0 interrupt is enabled setting this bit causes the CPU to execute the serial port 0 interrupt service routine Thi...

Страница 73: ...Name Description 7 0 SBUF 7 0 Serial port 0 data buffer This byte actually consists two separate registers One is the receiving resister and the other is the transmitting buffer When data is moved to...

Страница 74: ...it Name Description 7 0 SBUF_1 7 0 Serial port 1 data buffer This byte actually consists two separate registers One is the receiving resister and the other is the transmitting buffer When data is move...

Страница 75: ...PSR 4 Enable 5 EFB Enable Fault Brake interrupt 0 Fault Brake interrupt Disabled 1 Interrupt generated by FBF PWM0FBD 7 Enabled 4 EWDT Enable WDT interrupt 0 WDT interrupt Disabled 1 Interrupt generat...

Страница 76: ...N0 5 Enabled 4 EPWM2 Enable PWM2 interrupt 0 PWM2 interrupt Disabled 1 Interrupt generated by PWM2F PWM2CON0 5 Enabled 3 EPWM1 Enable PWM1 interrupt 0 PWM1 interrupt Disabled 1 Interrupt generated by...

Страница 77: ...7 6 Reserved 5 HardF mirrored from AUXR1 5 Clear this bit by write AUXR1 5 0 or RSR 5 0 4 POF mirrored from PCON 4 Clear this bit by write PCON 4 0 or RSR 4 0 3 RSTPINF mirrored from AUXR1 6 Clear thi...

Страница 78: ...CON0 7 as 1 and BORST BODCON0 2 as 0 This bit should be cleared via software 0 IAPEN IAP enable 0 IAP function Disabled 1 IAP function Enabled Once enabling IAP function the HIRC will be turned on for...

Страница 79: ...s recommended that the flag be cleared via software Note If MCU run in OCD debug mode and OCDEN 0 hard fault reset will be disabled and only HardF flag be asserted 4 SLOW ADC Slow Speed Selection This...

Страница 80: ...AL REFERENCE MANUAL Bit Name Description 0 DPS Data pointer select 0 Data pointer 0 DPTR is active by default 1 Data pointer 1 DPTR1 is active After DPS switches the activated data pointer the previou...

Страница 81: ...lect 00 Reserved by default 01 Assign UART2 TX to P0 3 10 Assign UART2 TX to P3 0 11 Reserved 5 4 UART2RXP UART2 RX pin select 00 Reserved by default 01 Assign UART2 RX to P0 4 10 Assign UART2 RX to P...

Страница 82: ...UART4 TX pin select 00 Reserved by default 01 Assign UART4 TX to P2 3 10 Reserved 11 Reserved 5 4 UART4RXP UART4 RX pin select 00 Reserved by default 01 Assign UART4 RX to P2 2 10 Reserved 11 Reserved...

Страница 83: ...PWM2_CH1 to P3 0 01 Assign PWM2_CH1 to P3 1 10 Assign PWM2_CH1 to P0 0 11 Assign PWM2_CH1 to P0 4 5 4 PWM2_CH0P PWM2 channel 0 pin select 00 Reserved by default 01 Assign PWM2_CH0 to P2 1 10 Assign P...

Страница 84: ...CLK Output pin select 0 Assign CLO to P1 1 while CLO output enabled 1 Assign CLO to P3 3 while CLO output enabled 6 T0P T0 pin select 0 Assign T0 to P0 5 1 Assign T0 to P2 4 5 4 Reserved 3 2 PWM3_CH1...

Страница 85: ...R W R W R W Bit Name Description 4 UART4DG UART4 RX Deglitch Control 1 Deglitch is Enabled 0 Deglitch is Disabled 3 UART3DG UART3 RX Deglitch Control 1 Deglitch is Enabled 0 Deglitch is Disabled 2 UAR...

Страница 86: ...IMISOP SPICKP R W R W R W R W Bit Name Description 4 3 SPI0NSSP SPI0_SS pin select 00 Assign SPI0_SS to P1 5 01 Reserved 10 Assign SPI0_SS to P3 5 11 Reserved 2 SPI0MOSIP SPI0_MOSI pin select 0 Assign...

Страница 87: ...Name Description 7 4 CLODIV 3 0 Clock output divider The system clock output follows the equation below according to CLODIV value while CLODIV 00H and while CLODIV 01H to 0FH 3 0 CKTESTOEN 3 0 Clock...

Страница 88: ...are set a brown out interrupt requirement will be generated This bit should be cleared via software 2 BORST Brown out reset enable This bit decides whether a brown out reset is caused by a power drop...

Страница 89: ...o IAP begins by setting this bit as logic 1 After this instruction the CPU holds the Program Counter PC and the IAP hardware automation takes over to control the progress After IAP action completed th...

Страница 90: ...APUEN R W R W R W Bit Name Description 2 CFUEN CONFIG bytes updated enable 0 Inhibit erasing or programming CONFIG bytes by IAP 1 Allow erasing or programming CONFIG bytes by IAP 1 LDUEN LDROM updated...

Страница 91: ...ES TECHNICAL REFERENCE MANUAL IAPAL IAP Address Low Byte Register SFR Address Reset Value IAPAL A6H Page 0 0000 _0000 b 7 6 5 4 3 2 1 0 IAPA 7 0 R W Bit Name Description 7 0 IAPA 7 0 IAP address low b...

Страница 92: ...TECHNICAL REFERENCE MANUAL IAPAH IAP Address High Byte Register SFR Address Reset Value IAPAH A7H Page 0 0000 _0000 b 7 6 5 4 3 2 1 0 IAPA 15 8 R W Bit Name Description 7 0 IAPA 15 8 IAP address high...

Страница 93: ...pt 0 ADC interrupt Disabled 1 Interrupt generated by ADCF ADCCON0 7 Enabled 5 EBOD Enable brown out interrupt 0 Brown out detection interrupt Disabled 1 Interrupt generated by BOF BODCON0 3 Enabled 4...

Страница 94: ...E MANUAL SADDR Slave 0 Address Register SFR Address Reset Value SADDR A9H Page 0 0000 _0000 b 7 6 5 4 3 2 1 0 SADDR 7 0 R W Bit Name Description 7 0 SADDR 7 0 Slave 0 address This byte specifies the m...

Страница 95: ...DT counter is completely cleared 1 WDT counter is not yet cleared 5 WDTF WDT time out flag This bit indicates an overflow of WDT counter This flag should be cleared by software 4 WIDPD WDT running in...

Страница 96: ...turning on BOD circuit every 6 4 ms periodically 11 BOD low power mode 3 by turning on BOD circuit every 25 6 ms periodically 0 BODFLT BOD filter control BOD has a filter which counts 32 clocks of FSY...

Страница 97: ...0 0000 _0000 b 7 6 5 4 3 2 1 0 IAPFD 7 0 R W Bit Name Description 7 0 IAPFD 7 0 IAP Flash data This byte contains Flash data which is read from or is going to be written to the Flash Memory User shoul...

Страница 98: ...Control Register SFR Address Reset Value IAPCN AFH Page 0 0011_0000 b 7 6 5 4 3 2 1 0 IAPB 1 0 FOEN FCEN FCTRL 3 0 R W R W R W R W Bit Name Description 7 6 IAPB 1 0 IAP control This byte is used for I...

Страница 99: ...1 Register SFR Address Reset Value P0M1 B1H Page 0 1111_1111 b P1M1 B3H Page 0 1111_1111 b P2M1 89H Page 2 0011_1111 b P3M1 ACH Page 0 1111_1111 b 7 6 5 4 3 2 1 0 PnM1 7 PnM1 6 PnM1 5 PnM1 4 PnM1 3 P...

Страница 100: ...4 3 2 1 0 PnM2 7 PnM2 6 PnM2 5 PnM2 4 PnM2 3 PnM2 2 PnM2 1 PnM2 0 R W R W R W R W R W R W R W R W Bit Name Description 7 0 PnM2 7 0 Port 0 mode select 2 NOTE PxM1 and PxM2 are used in combination to...

Страница 101: ...ss Reset Value P0S B1H Page 1 0000_0000 b P1S B3H Page 1 0000_0000 b P2S 8CH Page 2 0000_0000 b P3S ACH Page 1 0000_0000 b 7 6 5 4 3 2 1 0 PnS 7 PnS 6 PnS 5 PnS 4 PnS 3 PnS 2 PnS 1 PnS 0 R W R W R W R...

Страница 102: ...T1OE T0OE R W R W Bit Name Description 3 T1OE Timer 1 output enable 0 Timer 1 output Disabled 1 Timer 1 output Enabled from T1 pin Note that Timer 1 output should be enabled only when operating in it...

Страница 103: ...iority high bit 5 PBOD Brown out detection interrupt priority high bit 4 PSH Serial port 0 interrupt priority high bit 3 PT1H Timer 1 interrupt priority high bit 2 PX1H External interrupt 1 priority h...

Страница 104: ...t type select These bit select PWM interrupt type 00 Falling edge on PWM channel 0 1 2 3 4 5 pin 01 Rising edge on PWM channel 0 1 2 3 4 5 pin 10 Central point of a PWM period 11 End point of a PWM pe...

Страница 105: ...DC interrupt priority low bit 5 PBOD Brown out detection interrupt priority low bit 4 PS Serial port 0 interrupt priority low bit 3 PT1 Timer 1 interrupt priority low bit 2 PX1 External interrupt 1 pr...

Страница 106: ...ss Reset Value SADEN B9H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 SADEN 7 0 R W Bit Name Description 7 0 SADEN 7 0 Slave 0 address mask This byte is a mask byte of UART0 that contains don t care bits define...

Страница 107: ...Reset Value SADEN_1 BAH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 SADEN_1 7 0 R W Bit Name Description 7 0 SADEN_1 7 0 Slave 1 address mask This byte is a mask byte of UART1 that contains don t care bits de...

Страница 108: ...ANUAL SADDR_1 Slave 1 Address Register SFR Address Reset Value SADDR_1 BBH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 SADDR_1 7 0 R W Bit Name Description 7 0 SADDR_1 7 0 Slave 1 address This byte specifies t...

Страница 109: ...the I 2 C data to be transmitted or a byte which has just received Data in I2DAT remains as long as SI is logic 1 The result of reading or writing I2DAT during I 2 C transceiving progress is unpredic...

Страница 110: ...7 3 I2STAT 7 3 I 2 C status code The MSB five bits of I2STAT contains the status code There are 27 possible status codes When I2STAT is F8H no relevant state information is available and SI flag keeps...

Страница 111: ...is register determines the clock rate of I 2 C bus when the device is in a master mode The clock rate follows the equation 1 CLK 2 I 4 FSYS The default value will make the clock rate of I 2 C bus 400k...

Страница 112: ...OF R W R W R W Bit Name Description 2 I2TOCEN I 2 C time out counter enable 0 I 2 C time out counter Disabled 1 I 2 C time out counter Enabled 1 DIV I 2 C time out counter clock divider 0 The clock of...

Страница 113: ...e STOP condition has been detected on the bus The STO flag setting is also used to recover the I 2 C device from the bus error state I2STAT as 00H In this case no STOP condition is transmitted to the...

Страница 114: ...d no interrupt is requested Note that if an addressed slave does not return an ACK under slave receiver mode or not receive an ACK under slave transmitter mode the slave device will become a not addre...

Страница 115: ...hould address I 2 C device by sending the same address in the first byte data after a START or a repeated START condition If the AA flag is set this I 2 C device will acknowledge the master after rece...

Страница 116: ...NICAL REFERENCE MANUAL ADCRL ADC Result Low Byte Register SFR Address Reset Value ADCRL C2H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCR 3 0 R Bit Name Description 3 0 ADCR 3 0 ADC result low byte The leas...

Страница 117: ...CAL REFERENCE MANUAL ADCRH ADC Result High Byte Register SFR Address Reset Value ADCRH C3H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCR 11 4 R Bit Name Description 7 0 ADCR 11 4 ADC result high byte The mo...

Страница 118: ...RCK Serial port 0 baud rate clock source This bit selects which Timer is used as the baud rate clock source when serial port 0 is in Mode 1 or 3 0 Timer 1 1 Timer 3 4 TF3 Timer 3 overflow flag This bi...

Страница 119: ...ES TECHNICAL REFERENCE MANUAL RL3 Timer 3 Reload Low Byte Register SFR Address Reset Value RL3 C5H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RL3 7 0 R W Bit Name Description 7 0 RL3 7 0 Timer 3 reload low by...

Страница 120: ...S TECHNICAL REFERENCE MANUAL RH3 Timer 3 Reload High Byte Register SFR Address Reset Value RH3 C6H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RH3 7 0 R W Bit Name Description 7 0 RH3 7 0 Timer 3 reload high b...

Страница 121: ...in functions as P1 5 1 P1 5 PWM pin functions as PWM0C5 PWM3_CH1 output PWM3_CH1P 11 select PWM3_CH1 others select PWM0C5 3 PIO04 P0 4 PWM pin function select 0 P0 4 PWM pin functions as P0 4 1 P0 4 P...

Страница 122: ...3 3 1 P3 3 PWM0C0 pin functions as PWM0_CH1 output 5 PIO32 P3 2 PWM3_CH0 pin function select 0 P3 2 PWM3_CH0 pin functions as P3 2 1 P3 2 PWM3_CH0 pin functions as PWM3_CH0 output 4 PIO31 P3 1 PWM2_CH...

Страница 123: ...1 0 TA 7 0 W Bit Name Description 7 0 TA 7 0 Timed access The timed access register controls the access to protected SFRs To access protected bits user should first write AAH to the TA and immediatel...

Страница 124: ...compare match occurs If the Timer 2 interrupt and the global interrupt are enable setting this bit will make CPU execute Timer 2 interrupt service routine This bit is not automatically cleared via ha...

Страница 125: ...APCR Capture auto clear This bit is valid only under Timer 2 auto reload mode It enables hardware auto clearing TH2 and TL2 counter registers after they have been transferred in to RCMP2H and RCMP2L w...

Страница 126: ...Register SFR Address Reset Value RCMP2L CAH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RCMP2L 7 0 R W Bit Name Description 7 0 RCMP2L 7 0 Timer 2 reload compare low byte This register stores the low byte of...

Страница 127: ...Register SFR Address Reset Value RCMP2H CBH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RCMP2H 7 0 R W Bit Name Description 7 0 RCMP2H 7 0 Timer 2 reload compare high byte This register stores the high byte of...

Страница 128: ...CHNICAL REFERENCE MANUAL TL2 Timer 2 Low Byte Register SFR Address Reset Value TL2 CCH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 TL2 7 0 R W Bit Name Description 7 0 TL2 7 0 Timer 2 low byte The TL2 register...

Страница 129: ...HNICAL REFERENCE MANUAL TH2 Timer 2 High Byte Register SFR Address Reset Value TH2 CDH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 TH2 7 0 R W Bit Name Description 7 0 TH2 7 0 Timer 2 high byte The TH2 registe...

Страница 130: ...FERENCE MANUAL ADCMPL ADC Compare Low Byte Register SFR Address Reset Value ADCMPL CEH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCMP 3 0 W R Bit Name Description 3 0 ADCMP 3 0 ADC compare low byte The leas...

Страница 131: ...ERENCE MANUAL ADCMPH ADC Compare High Byte Register SFR Address Reset Value ADCMPH CFH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCMP 11 4 W R Bit Name Description 7 0 ADCMP 11 4 ADC compare high byte The m...

Страница 132: ...4 RS1 Register bank selection bits These two bits select one of four banks in which R0 to R7 locate RS1 RS0 Register Bank RAM Address 0 0 0 00H to 07H 0 1 1 08H to 0FH 1 0 2 10H to 17H 1 1 3 18H to 1F...

Страница 133: ...for an even number of ones It performs even parity check Instruction CY OV AC Instruction CY OV AC ADD X 1 X X CLR C 0 ADDC X X X CPL C X SUBB X X X ANL C bit X MUL 0 X ANL C bit X DIV 0 X ORL C bit...

Страница 134: ...1 2 3 Register SFR Address Reset Value PWM0PH D1H Page 0 0000_0000 b PWM1PH A9H Page 2 0000_0000 b PWM2PH B9H Page 2 0000_0000 b PWM3PH C9H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 PWM0P 15 8 R W Bit Name D...

Страница 135: ...ative Polarity Register SFR Address Reset Value PNP D6H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 PNP5 PNP4 PNP3 PNP2 PNP1 PNP0 R W R W R W R W R W R W Bit Name Description n PNPn PWMn negative polarity outp...

Страница 136: ...n 7 FBF Fault Brake flag This flag is set when FBINEN is set as 1 and FB pin detects an edge which matches FBINLS PWM0FBD 6 selection This bit is cleared by software After FBF is cleared Fault Brake d...

Страница 137: ...r the loading is complete LOAD will be automatically cleared via hardware The meaning of writing and reading LOAD bit is different Writing 0 No effect 1 Load new period and duty in their buffers while...

Страница 138: ...be automatically cleared via hardware The meaning of writing and reading LOAD bit is different Writing 0 No effect 1 Load new period and duty in their buffers while a PWM period is completed Reading...

Страница 139: ...starts running Note This bit is only for PWM0CON0 0 P33FBINEN P33 FB pin input enable 0 PWM0 output Fault Braked by P33 FB pin input Disabled 1 PWM0 output Fault Braked by P33 FB pin input Enabled On...

Страница 140: ...1 2 3 Register SFR Address Reset Value PWM0PL D9H Page 0 0000_0000 b PWM1PL B1H Page 2 0000_0000 b PWM2PL C1H Page 2 0000_0000 b PWM3PL D1H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 PWMnP 7 0 R W Bit Name D...

Страница 141: ...nnel 1 Duty High Byte 0000_0000 b PWM0C2H D4H Page 0 PWM0 Channel 2 Duty High Byte 0000_0000 b PWM0C3H D5H Page 0 PWM0 Channel 3 Duty High Byte 0000_0000 b PWM0C4H C4H Page 1 PWM0 Channel 4 Duty High...

Страница 142: ...Channel 1 Duty Low Byte 0000_0000 b PWM0C2L DCH Page 0 PWM0 Channel 2 Duty Low Byte 0000_0000 b PWM0C3L DDH Page 0 PWM0 Channel 3 Duty Low Byte 0000_0000 b PWM0C4L CCH Page 1 PWM0 Channel 4 Duty Low B...

Страница 143: ...utput PWM3_CH0P 10b select PWM3_CH0 others select PWM0C4 3 PIO00 P0 0 PWM pin function select 0 P0 0 PWM pin functions as P0 0 1 P0 0 PWM pin functions as PWM0_CH3 PWM2_CH1 output PWM2_CH1P 10b select...

Страница 144: ...es the group mode If enabled the duty of first three pairs of PWM are decided by PWM01H and PWM01L rather than their original duty control registers 0 Group mode Disabled 1 Group mode Enabled Note Thi...

Страница 145: ...91 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 2 0 PWMDIV 2 0 PWM clock divider This field decides the pre scale of PWM clock source 000 1 1 001 1 2 010 1 4 011 1 8 100 1...

Страница 146: ...or Register SFR Address Reset Value ACC E0H All pages Bit addressable 0000_0000 b 7 6 5 4 3 2 1 0 ACC 7 ACC 6 ACC 5 ACC 4 ACC 3 ACC 2 ACC 1 ACC 0 R W R W R W R W R W R W R W R W Bit Name Description 7...

Страница 147: ...C clock source FSYS 2 10 ADC clock source FSYS 4 11 ADC clock source FSYS 8 3 2 ETGTYP 1 0 External trigger type select When ADCEX ADCCON1 1 is set these bits select which condition triggers ADC conve...

Страница 148: ...fine The ADCF register changes to 1 only when ADC comparing result matches the condition and then enters interrupt vector if ADC interrupt is enabled 0 ADC result comparator trig ADCF Disabled 1 ADC r...

Страница 149: ...3 bit field decides the acquisition sampling time for ADC AIN9 AIN15 sampling following by equation below ADC sampling time ADCAQT F 6 ADCAQT 4 FADCAQT is defined in ADCDIV ADCCON2 3 1 As default FAD...

Страница 150: ...7 0 ADC external trigger delay counter low byte This 8 bit field combined with ADCCON2 0 forms a 9 bit counter This counter inserts a delay after detecting the external trigger An A D converting star...

Страница 151: ...Byte n 0 1 2 Register SFR Address Reset Value C0L E4H Page 0 0000_0000 b C1L E6H Page 0 0000_0000 b C2L EDH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 CnL 7 0 R W Bit Name Description 7 0 CnL 7 0 Input captur...

Страница 152: ...Byte n 1 2 3 Register SFR Address Reset Value C0H E5H Page 0 0000_0000 b C1H E7H Page 0 0000_0000 b C2H EEH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 CnH 7 0 R W Bit Name Description 7 0 CnH 7 0 Input captur...

Страница 153: ...g is 1 ADC cannot start a new converting This bit is cleared by software 6 ADCS A D converting software start trigger Setting this bit 1 triggers an A D conversion This bit remains logic 1 during A D...

Страница 154: ...el select This filed selects the activating analog input source of ADC If ADCEN is 0 all inputs are disconnected 0000 ADC_CH0 0001 ADC_CH1 0010 ADC_CH2 0011 ADC_CH3 0100 ADC_CH4 0101 ADC_CH5 0110 ADC_...

Страница 155: ...red 1 Edge triggered 5 PIT5 Pin interrupt channel 5 type select This bit selects which type that pin interrupt channel 5 is triggered 0 Level triggered 1 Edge triggered 4 PIT4 Pin interrupt channel 4...

Страница 156: ...f 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 0 PIT0 Pin interrupt channel 0 type select This bit selects which type that pin interrupt channel 0 is triggered 0 Level...

Страница 157: ...0 PINEN7 PINEN6 PINEN5 PINEN4 PINEN3 PINEN2 PINEN1 PINEN0 R W R W R W R W R W R W R W R W Bit Name Description n PINENn Pin interrupt channel n negative polarity enable This bit enables low level fal...

Страница 158: ...0 PIPEN7 PIPEN6 PIPEN5 PIPEN4 PIPEN3 PIPEN2 PIPEN1 PIPEN0 R W R W R W R W R W R W R W R W Bit Name Description n PIPENn Pin interrupt channel n positive polarity enable This bit enables high level ri...

Страница 159: ...e R level R W edge R level R W edge R level R W edge R level R W edge R level R W edge Bit Name Description n PIFn Pin interrupt channel n flag If the edge trigger is selected this flag will be set by...

Страница 160: ...nterrupt priority low bit 6 PSPI SPI interrupt priority low bit 5 PFB Fault Brake interrupt priority low bit 4 PWDT WDT interrupt priority low bit 3 PPWM PWM interrupt priority low bit 2 PCAP Input ca...

Страница 161: ...TRIM 2 0 LDOTRIM 4 0 R W R W Bit Name Description 7 5 Uldotrim 2 0 Suspend LDO output voltage trim This field is used to adjust the output voltage of suspend LDO 000 Maximum voltage 001 110 Minimum vo...

Страница 162: ...ter SFR Address Reset Value B F0H All pages Bit addressable 0000_0000 b 7 6 5 4 3 2 1 0 B 7 B 6 B 5 B 4 B 3 B 2 B 1 B 0 R W R W R W R W R W R W R W R W Bit Name Description 7 0 B 7 0 B register The B...

Страница 163: ...R W R W R W R W R W R W R W R W Bit Name Description 7 4 CAP1 3 0 Input capture channel 0 input pin select 0000 P1 2 IC0 0001 P1 1 IC1 0010 P1 0 IC2 0011 P0 0 IC3 0100 P0 4 IC3 0101 P0 1 IC4 0110 P0 3...

Страница 164: ...FR Address Reset Value CAPCON4 F2H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 CAP23 CAP22 CAP21 CAP20 R W R W R W R W Bit Name Description 3 0 CAP2 3 0 Input capture channel 0 input pin select 0000 P1 2 IC0 0...

Страница 165: ...e select the Slave device 6 SPIEN SPI enable 0 SPI function Disabled 1 SPI function Enabled 5 LSBFE LSB first enable 0 The SPI data is transferred MSB first 1 The SPI data is transferred LSB first 4 M...

Страница 166: ...FSYS 16 MHz condition Fsys 16 MHz SPR1 SPR0 Divider SPI clock rate 0 0 2 8M bit s 0 1 4 4M bit s 1 0 8 WM bit s 1 1 16 1 M bit s Fsys 24 MHz SPR1 SPR0 Divider SPI clock rate 0 0 2 12M bit s 0 1 4 6M...

Страница 167: ...6 5 4 3 2 1 0 SPIS1 SPIS0 R W R W Bit Name Description 7 2 Reserved 0 SPIS 1 0 SPI Interval time selection between adjacent bytes SPIS 1 0 and CPHA select eight grades of SPI interval time selection b...

Страница 168: ...an overrun event occurs this bit will be set If ESPI and EA are enabled an SPI interrupt will be required This bit should be cleared via software 4 MODF Mode Fault error flag This bit indicates a Mod...

Страница 169: ...0000 b 7 6 5 4 3 2 1 0 SPDR 7 0 R W Bit Name Description 7 0 SPDR 7 0 Serial peripheral data This byte is used for transmitting or receiving data on SPI bus A write of this byte is a write to the shif...

Страница 170: ...SFR Address Reset Value AINDIDS0 F6H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 P11DIDS P03DIDS P04DIDS P05DIDS P06DIDS P07DIDS P30DIDS P17DIDS R W R W R W R W R W R W R W R W Bit Name Description n PnnDIDS A...

Страница 171: ...ter SFR Address Reset Value AINDIDS1 99H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 P25DIDS P14DIDS P13DIDS P24DIDS P23DIDS P22DIDS P21DIDS R W R W R W R W R W R W R W R W Bit Name Description n PnnDIDS ADC C...

Страница 172: ...interrupt priority high bit 6 PSPIH SPI interrupt priority high bit 5 PFBH Fault Brake interrupt priority high bit 4 PWDTH WDT interrupt priority high bit 3 PPWMH PWM interrupt priority high bit 2 PCA...

Страница 173: ...eption is always valid no matter the logic level of stop bit 1 Reception is valid only when the received stop bit is logic 1 andthe received data matches Given or Broadcast address Mode 2 or 3 For mul...

Страница 174: ...s bit causes the CPU to execute the serial port 1 interrupt service routine This bit must be cleared manually via software 0 RI_1 Receiving interrupt flag This flag is set via hardware when a data fra...

Страница 175: ...bit is valid only when PWM4 5 is under complementary mode 0 No delay on GP4 GP5 pair signals 1 Insert dead time delay on the rising edge of GP4 GP5 pair signals 1 PDT23EN PWM2 3 pair dead time inserti...

Страница 176: ...6 5 4 3 2 1 0 PWM0DTCNT 7 0 R W Bit Name Description 7 0 PWM0DTCNT 7 0 PWM dead time counter low byte This 8 bit field combined with PWM0DTEN 4 forms a 9 bit PWM dead time counter PWM0DTCNT This count...

Страница 177: ...R W Bit Name Description x PMENx PWMnCx mask enable 0 PWMnCx signal outputs from its PWM generator 1 PWMnCx signal is masked by PMDx Note PMEN2 5 are only for PWM0 Register SFR Address Description Res...

Страница 178: ...nCx mask data The PWMnCx signal outputs mask data once its corresponding PMENx is set 0 PWMnCx signal is masked by 0 1 PWMnCx signal is masked by 1 Note PMD2 5 are only for PWM0 Register SFR Address D...

Страница 179: ...MANUAL PORDIS POR Disable Register SFR Address Reset Value PORDIS FDH Page 0 TA protected 0000_0000 b 7 6 5 4 3 2 1 0 PORDIS 7 0 W Bit Name Description 7 0 PORDIS 7 0 POR disable To first writing 5AH...

Страница 180: ...Name Description 5 PPWM3 PWM3 interrupt priority low bit 4 PPWM2 PWM2 interrupt priority low bit 3 PPWM1 PWM1 interrupt priority low bit 2 PWKT WKT interrupt priority low bit 1 PT3 Timer 3 interrupt...

Страница 181: ...t Name Description 5 PPWM3H PWM3 interrupt priority high bit 4 PPWM2H PWM2 interrupt priority high bit 3 PPWM1H PWM1 interrupt priority high bit 2 PWKTH WKT interrupt priority high bit 1 PT3H Timer 3...

Страница 182: ...E MANUAL LVRDIS LVR disable Register SFR Address Reset Value EIPH1 FFH Page 1 TA protected 0000_0000 b 7 6 5 4 3 2 1 0 LVRDIS 7 0 W Bit Name Description 7 0 LVRDIS 7 0 LVR disable To first writing 5AH...

Страница 183: ...5 4 3 2 1 0 PUART4 PUART3 PUART2 R W R W R W Bit Name Description 2 PUART4 UART4 interrupt priority low bit 1 PUART3 UART3 interrupt priority low bit 0 PUART2 UART2 interrupt priority low bit Note EI...

Страница 184: ...5 4 3 2 1 0 PSC2H PSC1H PSC0H R W R W R W Bit Name Description 2 PSC2H SC2 UART4 interrupt priority high bit 1 PSC1H SC1 UART3 interrupt priority high bit 0 PSC0H SC0 UART2 interrupt priority high bit...

Страница 185: ...0000_0000 b PIPS2 FBH page 2 0000_0000 b PIPS1 FAH page 2 0000_0000 b PIPS0 F9H page 2 0000_0000 b 7 6 5 4 3 2 1 0 PSEL 2 0 BSEL 2 0 R W R W Bit Name Description 6 4 PSEL 2 0 Pin interrupt channel Po...

Страница 186: ...er for the bit length of block guard time According to ISO 7816 3 in T 0 mode the software must clear T bit to 0 for real block guard time 16 5 In T 1 mode the software must set T bit to 1 for real bl...

Страница 187: ...e before Answer to Reset state and the first data must be 0x3B or 0x3F After hardware received first data and stored it at buffer hardware will decided the convention and change the CONSEL SCnCR0 4 bi...

Страница 188: ...the last data word bit and stop bit of the serial data 1 Parity bit is not generated transmitting data or checked receiving data during transfer Note In ISO 7816 3 mode this field must be 0 default se...

Страница 189: ...UART Mode Enable Bit 0 ISO 7816 3 mode 1 UART mode Note 1 When operating in UART mode user must set CONSEL SCnCR0 4 0 and AUTOCEN SCnCR0 3 0 Note 2 When operating in ISO 7816 3 mode user must set UAR...

Страница 190: ...age 2 0000_0000 b SC2DR E9H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 SCnDR 7 0 R W Bit Name Description 7 0 SCnDR 7 0 SC UART buffer data This byte is used for transmitting or receiving data on SC UART bus...

Страница 191: ...rd Time Register Register SFR Address Reset Value SC0EGT DAH Page 2 0000_0000 b SC1EGT E2H Page 2 0000_0000 b SC2EGT EAH Page 2 0000_0000 b 7 6 5 4 3 2 1 0 SCnEGT 7 0 R W Bit Name Description 7 0 SCnE...

Страница 192: ...DBH Page 2 0111_0011 b SC1ETURD0 E3H Page 2 0111_0011 b SC2ETURD0 EBH Page 2 0111_0011 b 7 6 5 4 3 2 1 0 ETURDIV 7 0 R W Bit Name Description 7 0 ETURDIV 7 0 LSB bits of ETU Rate Divider The field ind...

Страница 193: ...Description 7 Reserved 6 4 SCDIV 2 0 SC clock divider 000 FSC is FSYS 1 001 FSC is FSYS 2 010 FSC is FSYS 4 011 FSC is FSYS 8 By default 100 FSC is FSYS 16 101 FSC is FSYS 16 110 FSC is FSYS 16 111 FS...

Страница 194: ...t 0 Block guard time interrupt Disabled 1 Block guard time interrupt Enabled 2 TERRIEN Transfer Error Interrupt Enable Bit This field is used to enable transfer error interrupt The transfer error stat...

Страница 195: ...us Flag Read Only This field is used for transfer error interrupt status flag The transfer error states is at SC0TSR register which includes receiver break error BEF SC0TSR 6 frame error FEF SC0TSR 5...

Страница 196: ...ever the received character does not have a valid stop bit that is the stop bit following the last data bit or parity bit is detected as logic 0 Note This bit is read only but it can be cleared by wri...

Страница 197: ...91 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 0 RXOV RX Overflow Error Status Flag Read Only This bit is set when RX buffer overflow Note This bit is read only but it can...

Страница 198: ...rol TA Protected Register SFR Address Reset Value XTLCON D7H Page 2 0111_0111 b 7 6 5 4 3 2 1 0 HXSG R W Bit Name Description 7 Reserved 6 4 HXSG HXT gain value select 000 L0 mode smallest value 001 L...

Страница 199: ...dress Reset Value P0DW 9AH page 2 0000_0000 b P1DW 9BH page 2 0000_0000 b P2DW 9CH page 2 0000_0000 b P3DW 9DH page 2 0000_0000 b 7 6 5 4 3 2 1 0 PnDW 7 PnDW 6 PnDW 5 PnDW 4 PnDW 3 PnDW 2 PnDW 1 PnDW...

Страница 200: ...Address Reset Value P0UP 92H page 2 0000_0000 b P1UP 93H page 2 0000_0000 b P2UP 94H page 2 0000_0000 b P3UP 95H page 2 0000_0000 b 7 6 5 4 3 2 1 0 PnUP 7 PnUP 6 PnUP 5 PnUP 4 PnUP 3 PnUP 2 PnUP 1 PnU...

Страница 201: ...gram System Clock Sources 6 2 1 2 There are a total of three system clock sources selectable in the MS51 including high speed internal oscillator low speed internal oscillator and external clock input...

Страница 202: ...Nov 28 2019 Page 202 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL HIRC speed slower about 40 kHz Following shows two Byte combine the 9 bit internal RC trim value And HIRC 24 MHz define...

Страница 203: ...03 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL RCTRIM0 High Speed Internal Oscillator 16 MHz Trim 0 Register SFR Address Reset Value RCTRIM0 84H Page0 TA protected 0000_0000b 7 6 5 4 3...

Страница 204: ...f external clock sources 4 MHz to 24 MHz high speed crystal resonator HXT and the external clock input ECLK through XIN pin User can set OSC 2 0 as 0 1 x to select ECLK as the system clock By setting...

Страница 205: ...equires some amount of warm up period for an original disabled clock source Therefore use should follow steps below to ensure a complete clock source switching User can enable the target clock source...

Страница 206: ...it for stabilization of the target clock source and then switch to it in the background During this waiting period the device will continue executing the program with the original clock source and CKS...

Страница 207: ...or disabled 1 External clock P00 input is enabled and stable 5 HIRCST High speed internal oscillator 16 MHz status 0 High speed internal oscillator is not stable or disabled 1 High speed internal osc...

Страница 208: ...ning by the clock source of the internal 10 kHz oscillator 3 BOD is enabled or 4 LVR filter is enabled a write 0 to LIRCEN will be ignored LIRCEN is always 1 and the internal 10 kHz oscillator is alwa...

Страница 209: ...the equation below according to CKDIV value OSC SYS F F while CKDIV 00H and CKDIV 2 F F OSC SYS while CKDIV 01H to FFH System Clock Output 6 2 1 7 The MS51 provides a CLO pin that outputs the system...

Страница 210: ...N Clock Control Register SFR Address Reset Value CKCON 8EH Page0 0000_0000b 7 6 5 4 3 2 1 0 PWMCKS T1M T0M CLOEN R W R W R W R W Bit Name Description 1 CLOEN System clock output enable 0 System clock...

Страница 211: ...ion at the instruction which follows the instruction that put the system into Power down mode Note that If IDL bit and PD bit are set simultaneously CPU will enter Power down mode Then it does not go...

Страница 212: ...enters Power down mode In the Power down mode RAM maintains its content The port pins output the values held by their own state before Power down respectively There are several ways to exit the MS51...

Страница 213: ...e applications These eight nominal levels are 1 8V 2 0V 2 4V 2 7V 3 0V 3 7V and 4 4V selected via setting CBOV 2 0 CONFIG2 6 4 BOD level can also be changed by setting BOV 2 0 BODCON0 6 4 after power...

Страница 214: ...sis feature will disappear in low power BOD mode For a noise sensitive system the MS51 has a BOD filter which filters the power noise to avoid BOD event triggering unconsciously The BOD filter is enab...

Страница 215: ...detection circuit on 0 Brown out detection circuit off 5 4 CBOV 1 0 CONFIG brown out voltage select 11 VBOD is 2 2V 10 VBOD is 2 7V 01 VBOD is 3 7V 00 VBOD is 4 4V 2 CBORST CONFIG brown out reset enab...

Страница 216: ...are set a brown out interrupt requirement will be generated This bit should be cleared via software 2 BORST Brown out reset enable This bit decides whether a brown out reset is caused by a power drop...

Страница 217: ...turning on BOD circuit every 6 4 ms periodically 11 BOD low power mode 3 by turning on BOD circuit every 25 6 ms periodically 0 BODFLT BOD filter control BOD has a filter which counts 32 clocks of FS...

Страница 218: ...1 FLIRC Low power mode 2 LPBOD 1 0 1 0 Any clock source 64 1 FLIRC Low power mode 3 LPBOD 1 0 1 1 Any clock source 256 1 FLIRC 1 Normal mode LPBOD 1 0 0 0 HIRC ECLK Normal operation 32 1 FSYS Idle mo...

Страница 219: ...a power on flag POF PCON 4 will be set 1 to indicate a cold reset a power on process complete Note that the contents of internal RAM will be undetermined after a power on It is recommended that user...

Страница 220: ...t Once the device is in reset condition it will remain as long as RST pin is low After the RST high is removed the MCU will exit the reset state and begin code executing from address 0000H If an exter...

Страница 221: ...eared via software Note If MCU run in OCD debug mode and OCDEN 0 Hard fault reset will disable Only HardF flag be asserted Watchdog Timer Reset 6 2 4 5 The WDT is a free running timer with programmabl...

Страница 222: ...s quite useful in the end of an ISP progress For example if an ISP of Boot Code updating User Code finishes a software reset can be asserted to re boot CPU to execute new User Code immediately Writing...

Страница 223: ...FR Address Reset Value CHPCON 9FH All page TA protected Software 0000_00U0 b Others 0000_00C0 b 7 6 5 4 3 2 1 0 SWRST IAPFF BS IAPEN W R W R W R W Bit Name Description 7 SWRST Software reset To set th...

Страница 224: ...11b software reset flag clear CLR EA MOV TA 0Aah MOV TA 55h ORL CHPCON 10000000b software reset Boot Select 6 2 4 7 RST pin reset Brown out reset Software reset Low voltage reset Load Reset and boot f...

Страница 225: ...CDEN LOCK R W R W R W R W Factory default value 1111 1111b Bit Name Description 7 CBS CONFIG boot select This bit defines from which block that MCU re boots after resets except software reset 1 MCU wi...

Страница 226: ...released from reset state the hardware will always check the BS bit instead of the CBS bit to determine from which block that the device reboots Reset State 6 2 4 8 The reset state besides power on r...

Страница 227: ...crucial to proper operation of the system If leaving these control registers unprotected errant code may write undetermined value into them and results in incorrect operation and loss of control To pr...

Страница 228: ...ed access window is opened It remains open for 4 clock cycles during which user may write to the protected bits After 4 clock cycles this window automatically closes Once the window closes the procedu...

Страница 229: ...the protected bits is done before the 3 clock cycle window closes In example 2 however the writing to BODCON0 does not complete during the window opening there will be no change of the value of BODCON...

Страница 230: ...Number Source Vector Address Vector Number Reset 0000H Input capture interrupt 0063H 12 External interrupt 0 0003H 0 PWM0 interrupt 006BH 13 Timer 0 overflow 000BH 1 Fault Brake interrupt 0073H 14 Ex...

Страница 231: ...rupts can be generated Note that every interrupts if enabled is generated by a setting as logic 1 of its interrupt flag no matter by hardware or software User should take care of each interrupt flag i...

Страница 232: ...pt 0 ADC interrupt Disabled 1 Interrupt generated by ADCF ADCCON0 7 Enabled 5 EBOD Enable brown out interrupt 0 Brown out detection interrupt Disabled 1 Interrupt generated by BOF BODCON0 3 Enabled 4...

Страница 233: ...SPSR 4 Enable 5 EFB Enable Fault Brake interrupt 0 Fault Brake interrupt Disabled 1 Interrupt generated by FBF PWM0FBD 7 Enabled 4 EWDT Enable WDT interrupt 0 WDT interrupt Disabled 1 Interrupt genera...

Страница 234: ...ON0 5 Enabled 4 EPWM2 Enable PWM2 interrupt 0 PWM2 interrupt Disabled 1 Interrupt generated by PWM2F PWM2CON0 5 Enabled 3 EPWM1 Enable PWM1 interrupt 0 PWM1 interrupt Disabled 1 Interrupt generated by...

Страница 235: ...e a low priority interrupt handler is running if a high priority interrupt arrives the handler will be interrupted and the high priority handler will run When the high priority handler does RETI the l...

Страница 236: ...ity bits natural priority and the permission to wake up the CPU from Power down mode For details of waking CPU up from Power down mode please see Section 6 2 2 3 Power Down Mode Interrupt Priority Con...

Страница 237: ...terrupt 003BH PIF0 to PIF7 PIF 3 EPI 8 PPI PPIH Yes Timer 1 001BH TF1 2 ET1 9 PT1 PT1H No Serial port 0 0023H RI TI ES 10 PS PSH No Fault Brake event 0073h FBF PWM0FBD 7 EFB 11 PFB PFBH No SPI 004Bh S...

Страница 238: ...interrupt pin is set as edge triggered Itx 1 its own flag Iex will be automatically cleared if the interrupt service routine ISR is executed While as level triggered Itx 0 Iex follows the inverse of r...

Страница 239: ...DC interrupt priority low bit 5 PBOD Brown out detection interrupt priority low bit 4 PS Serial port 0 interrupt priority low bit 3 PT1 Timer 1 interrupt priority low bit 2 PX1 External interrupt 1 pr...

Страница 240: ...ority high bit 5 PBOD Brown out detection interrupt priority high bit 4 PSH Serial port 0 interrupt priority high bit 3 PT1H Timer 1 interrupt priority high bit 2 PX1H External interrupt 1 priority hi...

Страница 241: ...terrupt priority low bit 6 PSPI SPI interrupt priority low bit 5 PFB Fault Brake interrupt priority low bit 4 PWDT WDT interrupt priority low bit 3 PPWM PWM interrupt priority low bit 2 PCAP Input cap...

Страница 242: ...interrupt priority high bit 6 PSPIH SPI interrupt priority high bit 5 PFBH Fault Brake interrupt priority high bit 4 PWDTH WDT interrupt priority high bit 3 PPWMH PWM interrupt priority high bit 2 PCA...

Страница 243: ...Name Description 5 PPWM3 PWM3 interrupt priority low bit 4 PPWM2 PWM2 interrupt priority low bit 3 PPWM1 PWM1 interrupt priority low bit 2 PWKT WKT interrupt priority low bit 1 PT3 Timer 3 interrupt...

Страница 244: ...Name Description 5 PPWM3H PWM3 interrupt priority high bit 4 PPWM2H PWM2 interrupt priority high bit 3 PPWM1H PWM1 interrupt priority high bit 2 PWKTH WKT interrupt priority high bit 1 PT3H Timer 3 i...

Страница 245: ...5 4 3 2 1 0 PSC2 PSC1 PSC0 R W R W R W Bit Name Description 2 PSC2 SC2 UART4 interrupt priority low bit 1 PSC1 SC1 UART3 interrupt priority low bit 0 PSC0 SC0 UART2 interrupt priority low bit Note EI...

Страница 246: ...system clock cycle If an interrupt flag is active in one cycle but not responded to for the above conditions are not met if the flag is not still active when the blocking condition is removed the den...

Страница 247: ...e RETI 6 clock cycles to complete the longest instruction 1 clock cycle to detect the interrupt and 4 clock cycles to complete the hardware LCALL to the interrupt vector location Thus in a single inte...

Страница 248: ...rigger this flag follows the inverse of the INT1 input signal s logic level Software cannot control it 2 IT1 External interrupt 1 type select This bit selects by which type that INT1 is triggered 0 IN...

Страница 249: ...lly controlled disregard of the operating voltage and frequency Nominally a page erase time is 5 ms and a byte program time is 23 5 s After IAP action completed the Program Counter continues to run th...

Страница 250: ...001H CONFIG2 0002H CONFIG4 0004H CONFIG6 0005H Data in CONFIG byte read 11 0 0 0000 CONFIG0 0000H CONFIG1 0001H CONFIG2 0002H CONFIG4 0004H CONFIG6 0005H Data out Note 1 X means don t care 2 Each page...

Страница 251: ...tory default value 1111 1111b Bit Name Description 3 BOIAP Brown out inhibiting IAP This bit decide whether IAP erasing or programming is inhibited by brown out status This bit is valid only when brow...

Страница 252: ...tion is met 1 The accessing address is oversize 2 IAPCN command is invalid 3 IAP erases or programs updating un enabled block 4 IAP erasing or programming operates under VBOD while BOIAP CONFIG2 5 rem...

Страница 253: ...CPU memory address 0xff80 0xffff is mapping to SPROM memory 3 SPUEN SPROM Memory space updated enable TA protected 0 Inhibit erasing or programming SPRO Mbytes by IAP 1 Allow erasing or programming SP...

Страница 254: ...CAL REFERENCE MANUAL IAPCN IAP Control Register SFR Address Reset Value IAPCN AFH Page 0 0011_0000 b Bit Name Description 7 6 IAPB 1 0 IAP control This byte is used for IAP command For details see Tab...

Страница 255: ...MS51 32K SERIES TECHNICAL REFERENCE MANUAL IAPAH IAP Address High Byte Register SFR Address Reset Value IAPAH A7H Page 0 0000 _0000 b Bit Name Description 7 0 IAPA 15 8 IAP address high byte IAPAH con...

Страница 256: ...ES TECHNICAL REFERENCE MANUAL IAPAL IAP Address Low Byte Register SFR Address Reset Value IAPAL A6H Page 0 0000 _0000 b 7 6 5 4 3 2 1 0 IAPA 7 0 R W Bit Name Description 7 0 IAPA 7 0 IAP address low b...

Страница 257: ...0 0000 _0000 b 7 6 5 4 3 2 1 0 IAPFD 7 0 R W Bit Name Description 7 0 IAPFD 7 0 IAP Flash data This byte contains Flash data which is read from or is going to be written to the Flash Memory User shou...

Страница 258: ...ings will possible cause undetermined results even serious damages of devices Furthermore this paragraph will also support useful suggestions during IAP procedures 1 If no more IAP operation is needed...

Страница 259: ...APROM 201h as a byte of Data Flash when user code is executed in APROM PAGE_ERASE_AP EQU 00100010b BYTE_PROGRAM_AP EQU 00100001b ORG 0000h MOV TA 0Aah CHPCON is TA protected MOV TA 55h ORL CHPCON 000...

Страница 260: ...element array in code area from absolute address 0x0200 volatile unsigned char code Data_Flash 128 _at_ 0x0200 Main void TA 0Xaa CHPCON is TA protected TA 0x55 CHPCON 0x01 IAPEN 1 enable IAP mode TA 0...

Страница 261: ...e that resides in LDROM The maximum size of LDROM is 4K Byte User developed Boot Code can be re programmed by parallel writer or In Circuit Programming ICP tool General speaking an ISP is carried out...

Страница 262: ...erify Programmed CONFIG2 CALL Disable_IAP MOV TA 0Aah TA protection MOV TA 55h ANL CHPCON 11111101b BS 0 reset to APROM MOV TA 0Aah MOV TA 55h ORL CHPCON 80h software reset and reboot from APROM SJMP...

Страница 263: ...APTRG 00000001b write 1 to IAPGO to trigger IAP process RET IAP APROM Function Erase_AP MOV IAPCN PAGE_ERASE_AP MOV IAPFD 0FFh MOV R0 00h Erase_AP_Loop MOV IAPAH R0 MOV IAPAL 00h CALL Trigger_IAP MOV...

Страница 264: ..._AP_Verify_Loop RET Program_AP_Verify_Error CALL Disable_IAP MOV P0 00h SJMP IAP CONFIG Function Erase_CONFIG MOV IAPCN ALL_ERASE_CONFIG MOV IAPAH 00h MOV IAPAL 00h MOV IAPFD 0FFh CALL Trigger_IAP RET...

Страница 265: ...mmed with the most recent firmware or a customized firmware There are three signal pins RST ICP_DAT and ICP_CLK involved in ICP function RST is used to enter or exit ICP mode ICP_DAT is the data input...

Страница 266: ...he MS51 is a fully featured microcontroller that multiplexes several functions on its limited I O pins Some device functionality must be sacrificed to provide resources for OCD system The OCD has the...

Страница 267: ...factory pre programmed with a 96 bit width serial number which is guaranteed to be unique The serial number is called Unique Code The user can read the Unique Code only by IAP command Please see Chapt...

Страница 268: ...ed 2 RPD Reset pin disable 1 The reset function of P2 0 Nrst pin Enabled P2 0 Nrst functions as the external reset pin 0 The reset function of P2 0 Nrst pin Disabled P2 0 Nrst functions as an input on...

Страница 269: ...W Factory default value 1111 1111b Bit Name Description 2 0 LDSIZE 2 0 LDROM size select This field selects the size of LDROM 111 No LDROM APROM is 32 Kbytes 110 LDROM is 1 Kbytes APROM is 31 Kbytes 1...

Страница 270: ...P Brown out inhibiting IAP This bit decides whether IAP erasing or programming is inhibited by brown out status This bit is valid only when brown out detection is enabled 1 IAP erasing or programming...

Страница 271: ...4 WDTEN 3 0 WDT enable This field configures the WDT behavior after MCU execution 1111 WDT is Disabled WDT can be used as a general purpose timer via software control 0101 WDT is Enabled as a time ou...

Страница 272: ...suppression capability All I O pins also have bit controllable slew rate select ability via software The control registers are PxSR By default the slew rate is slow If user would like to increase the...

Страница 273: ...ce current is needed for an output driving Port Pin Input Port Latch P N VDD Strong Figure 6 4 2 Push Pull Mode Structure Input Only Mode 6 4 1 3 Input only mode provides true high impedance input pat...

Страница 274: ...Structure 6 4 2 Read Modify Write Instructions Instructions that read a byte from SFR or internal RAM modify it and rewrite it back are called Read Modify Write instructions When the destination is an...

Страница 275: ...terrupt flags located in PIF register The respective flags for each pin interrupt channel allow the interrupt service routine to poll on which channel on which the interrupt event occurs All flags in...

Страница 276: ...rs are bit addressable Pn Port Bit addressable Register SFR Address Reset Value P0 80H All pages Bit addressable 1111_1111 b P1 90H All pages Bit addressable 1111_1111 b P2 A0H All pages Bit addressab...

Страница 277: ...1 Register SFR Address Reset Value P0M1 B1H Page 0 1111_1111 b P1M1 B3H Page 0 1111_1111 b P2M1 89H Page 2 0011_1111 b P3M1 ACH Page 0 1111_1111 b 7 6 5 4 3 2 1 0 PnM1 7 PnM1 6 PnM1 5 PnM1 4 PnM1 3 P...

Страница 278: ...I O pin can be configured individually as TTL input or Schmitt triggered input Note that all of PxS registers are accessible by switching SFR page to Page 1 PnS Port n Schmitt Triggered Input Registe...

Страница 279: ...MS51 Nov 28 2019 Page 279 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Note that all PxSR registers are accessible by switching SFR page to Page 1...

Страница 280: ...set Value P0SR B2H Page 1 0000_0000 b P1SR B4H Page 1 0000_0000 b P2SR 8BH Page 2 0000_0000 b P3SR ADH Page 1 0000_0000 b 7 6 5 4 3 2 1 0 PnSR 7 PnSR 6 PnSR 5 PnSR 4 PnSR 3 PnSR 2 PnSR 1 PnSR 0 R W R...

Страница 281: ...red 1 Edge triggered 5 PIT5 Pin interrupt channel 5 type select This bit selects which type that pin interrupt channel 5 is triggered 0 Level triggered 1 Edge triggered 4 PIT4 Pin interrupt channel 4...

Страница 282: ...f 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 0 PIT0 Pin interrupt channel 0 type select This bit selects which type that pin interrupt channel 0 is triggered 0 Level...

Страница 283: ...0 PINEN7 PINEN6 PINEN5 PINEN4 PINEN3 PINEN2 PINEN1 PINEN0 R W R W R W R W R W R W R W R W Bit Name Description n PINENn Pin interrupt channel n negative polarity enable This bit enables low level fal...

Страница 284: ...0 PIPEN7 PIPEN6 PIPEN5 PIPEN4 PIPEN3 PIPEN2 PIPEN1 PIPEN0 R W R W R W R W R W R W R W R W Bit Name Description n PIPENn Pin interrupt channel n positive polarity enable This bit enables high level ri...

Страница 285: ...e R level R W edge R level R W edge R level R W edge R level R W edge R level R W edge Bit Name Description n PIFn Pin interrupt channel n flag If the edge trigger is selected this flag will be set by...

Страница 286: ...0000_0000 b PIPS2 FBH page 2 0000_0000 b PIPS1 FAH page 2 0000_0000 b PIPS0 F9H page 2 0000_0000 b 7 6 5 4 3 2 1 0 PSEL 2 0 BSEL 2 0 R W R W Bit Name Description 6 4 PSEL 2 0 Pin interrupt channel Po...

Страница 287: ...automatically to toggle output whenever a timer overflow occurs The same device pins that are used for the T0 and T1 count inputs are also used for the timer toggle outputs This function is enabled by...

Страница 288: ...uto reload mode In this mode TL0 TL1 acts as an 8 bit count register whereas TH0 TH1 holds the reload value When the TL0 TL1 register overflow the TF0 TF1 bit in TCON is set and TL0 TL1 is reloaded wi...

Страница 289: ...ching it out of or into its own Mode 3 It can still be used in Modes 0 1 and 2 although its flexibility is restricted It no longer has control over its overflow flag TF1 and the enable bit TR1 However...

Страница 290: ...with auto reload from TH1 1 1 Mode 3 Timer 1 halted 4 M0 3 GATE Timer 0 gate control 0 Timer 0 will clock when TR0 is 1 regardless of INT0 logic level 1 Timer 0 will clock only when TR0 is 1 and INT0...

Страница 291: ...ll be preserved in TH0 and TL0 1 Timer 0 Enabled 3 IE1 External interrupt 1 edge flag If IT1 1 falling edge trigger this flag will be set by hardware when a falling edge is detected It remain set unti...

Страница 292: ...ECHNICAL REFERENCE MANUAL TL0 Timer 0 Low Byte Register SFR Address Reset Value TL0 8AH Page0 0000_0000b 7 6 5 4 3 2 1 0 TL0 7 0 R W Bit Name Description 7 0 TL0 7 0 Timer 0 low byte The TL0 register...

Страница 293: ...CHNICAL REFERENCE MANUAL TH0 Timer 0 High Byte Register SFR Address Reset Value TH0 8CH Page0 0000_0000b 7 6 5 4 3 2 1 0 TH0 7 0 R W Bit Name Description 7 0 TH0 7 0 Timer 0 high byte The TH0 register...

Страница 294: ...ECHNICAL REFERENCE MANUAL TL1 Timer 1 Low Byte Register SFR Address Reset Value TL1 8BH Page0 0000_0000b 7 6 5 4 3 2 1 0 TL1 7 0 R W Bit Name Description 7 0 TL1 7 0 Timer 1 low byte The TL1 register...

Страница 295: ...CHNICAL REFERENCE MANUAL TH1 Timer 1 High Byte Register SFR Address Reset Value TH1 8DH Page0 0000_0000b 7 6 5 4 3 2 1 0 TH1 7 0 R W Bit Name Description 7 0 TH1 7 0 Timer 1 high byte The TH1 register...

Страница 296: ...r 0 output Disabled 1 Timer 0 output Enabled from T0 pin Note that Timer 0 output should be enabled only when operating in its Timer mode 6 5 2 Timer2 And Input Capture Overview 6 5 2 1 Timer 2 is a 1...

Страница 297: ...Capture 0 Module Input Capture 1 Module Input Capture 2 Module Input Capture Flags CAPF 2 0 CAPCR 1 T2MOD 3 CAPF0 CAPF1 CAPF2 Clear Timer 2 1 Once CAPCR and LDEN are both set an input capture event o...

Страница 298: ...MP2L contents TF2 Timer 2 Interrupt Pre scalar FSYS RCMP2H T2DIV 2 0 T2MOD 6 4 RCMP2L TH2 TL2 00 01 10 11 CAPF0 CAPF1 CAPF2 LDEN 1 T2MOD 7 LDTS 1 0 T2MOD 1 0 TR2 T2CON 2 Timer 2 Module C0H C0L Noise F...

Страница 299: ...er 2 counter as 0000H automatically after a compare match has occurred Input Capture Interrupt CAPF0 CAPF1 CAPF2 TF2 Timer 2 Interrupt Pre scalar FSYS RCMP2H T2DIV 2 0 T2MOD 6 4 RCMP2L TH2 TL2 TR2 T2C...

Страница 300: ...channel has to set its own enabling bit CAPEN0 2 CAPCON0 6 4 before use While input capture channel is enabled and the selected edge trigger occurs the content of the free running Timer 2 counter TH2...

Страница 301: ...ch occurs If the Timer 2 interrupt and the global interrupt are enable setting this bit will make CPU execute Timer 2 interrupt service routine This bit is not automatically cleared via hardware and s...

Страница 302: ...APCR Capture auto clear This bit is valid only under Timer 2 auto reload mode It enables hardware auto clearing TH2 and TL2 counter registers after they have been transferred in to RCMP2H and RCMP2L w...

Страница 303: ...Register SFR Address Reset Value RCMP2L CAH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RCMP2L 7 0 R W Bit Name Description 7 0 RCMP2L 7 0 Timer 2 reload compare low byte This register stores the low byte of...

Страница 304: ...Register SFR Address Reset Value RCMP2H CBH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RCMP2H 7 0 R W Bit Name Description 7 0 RCMP2H 7 0 Timer 2 reload compare high byte This register stores the high byte of...

Страница 305: ...CHNICAL REFERENCE MANUAL TL2 Timer 2 Low Byte Register SFR Address Reset Value TL2 CCH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 TL2 7 0 R W Bit Name Description 7 0 TL2 7 0 Timer 2 low byte The TL2 register...

Страница 306: ...H2 7 0 R W Bit Name Description 7 0 TH2 7 0 Timer 2 high byte The TH2 register is the high byte of the 16 bit counting register of Timer 2 Note that the TH2 and TL2 are accessed separately It is stron...

Страница 307: ...1 enable 0 Input capture channel 1 Disabled 1 Input capture channel 1 Enabled 4 CAPEN0 Input capture 0 enable 0 Input capture channel 0 Disabled 1 Input capture channel 0 Enabled 3 Reserved 2 CAPF2 In...

Страница 308: ...CAP0LS 1 0 R W R W R W Bit Name Description 7 6 Reserved 5 4 CAP2LS 1 0 Input capture 2 level select 00 Falling edge 01 Rising edge 10 Either rising or falling edge 11 Reserved 3 2 CAP1LS 1 0 Input c...

Страница 309: ...on 6 ENF2 Enable noise filer on input capture 2 0 Noise filter on input capture channel 2 Disabled 1 Noise filter on input capture channel 2 Enabled 5 ENF1 Enable noise filer on input capture 1 0 Nois...

Страница 310: ...Byte n 0 1 2 Register SFR Address Reset Value C0L E4H Page 0 0000_0000 b C1L E6H Page 0 0000_0000 b C2L EDH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 CnL 7 0 R W Bit Name Description 7 0 CnL 7 0 Input captur...

Страница 311: ...Byte n 1 2 3 Register SFR Address Reset Value C0H E5H Page 0 0000_0000 b C1H E7H Page 0 0000_0000 b C2H EEH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 CnH 7 0 R W Bit Name Description 7 0 CnH 7 0 Input captur...

Страница 312: ...R W R W R W R W R W R W R W R W Bit Name Description 7 4 CAP1 3 0 Input capture channel 1 input pin select 0000 P1 2 IC0 0001 P1 1 IC1 0010 P1 0 IC2 0011 P0 0 IC3 0100 P0 4 IC3 0101 P0 1 IC4 0110 P0 3...

Страница 313: ...FR Address Reset Value CAPCON4 F2H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 CAP23 CAP22 CAP21 CAP20 R W R W R W R W Bit Name Description 3 0 CAP2 3 0 Input capture channel 2 input pin select 0000 P1 2 IC0 0...

Страница 314: ...he baud rate clock source of both UARTs For details please see Section 6 9 3 Baud Rate RL3 TR3 T3CON 3 FSYS Internal 16 bit Counter 0 7 RH3 0 7 Timer 3 Overflow Pre scalar 1 1 1 128 T3PS 2 0 T3CON 2 0...

Страница 315: ...v 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 2 0 T3PS 2 0 Timer 3 pre scalar These bits determine the scale of the clock divider for Timer 3 000 1 1 001 1 2 010 1 4 011 1 8 1...

Страница 316: ...ES TECHNICAL REFERENCE MANUAL RL3 Timer 3 Reload Low Byte Register SFR Address Reset Value RL3 C5H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RL3 7 0 R W Bit Name Description 7 0 RL3 7 0 Timer 3 reload low by...

Страница 317: ...S TECHNICAL REFERENCE MANUAL RH3 Timer 3 Reload High Byte Register SFR Address Reset Value RH3 C6H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 RH3 7 0 R W Bit Name Description 7 0 RH3 7 0 Timer 3 reload high b...

Страница 318: ...two PWM1 2 3 can be configured as one of independent mode complementary mode or synchronous mode The PWM1 2 3 waveform can be edge aligned or center aligned with variable interrupt points PWM output...

Страница 319: ...riod counter The duty of each PWM is determined independently by the value of duty registers PWM0 has six duty registers PWM1 2 3 has two duty registers These PWMs output can be generated independentl...

Страница 320: ...egister PWM0C4 buffer PWM0C4 Register PWM0C5 buffer PWM0C5 Register P0G2 P0G3 P0G4 P0G5 0 1 0 1 0 1 0 1 GP PWM0CON1 5 PWM0PH PWM0PL PWM0CH0H PWM0CH0L PWM0CH1H PWM0CH1L PWM0CH2H PWM0CH2L PWM0CH3H PWM0C...

Страница 321: ...CON0 4 PWMnP registers LOAD PWMnCON0 6 PWMF PWMnCON0 5 PWMnP buffer PWMnC0 buffer PWMnC0 Register 0 to 1 PWMn and Fault Brake output control PWMTYP PWMnCON1 4 edge center Interrupt select type PWMDIV0...

Страница 322: ...CH0 PWM0_CH3 PWM0_CH1 PWM0_CH2 PWM0_CH5 PWM0_CH4 Figure 6 6 3 PWM0 and Fault Brake Output Control Block Diagram User should follow the initialization steps below to start generating the PWM signal out...

Страница 323: ...AD bit Any updating of PWM control registers during LOAD bit as logic 1 will cause unpredictable output PWM Types 6 6 2 2 The PWM generator provides two PWM types edge aligned or center aligned PWM ty...

Страница 324: ...y PWMDIV PWM high level duty 1 PWMnPL PWMnPH PWMnCHxL PWMnCHxH Center Aligned Type 6 6 2 4 In center aligned mode the 16 bit counter use dual slop operation by counting up from 0000H to PWMnPH PWMnPL...

Страница 325: ...n a real motor application a complementary PWM0 output always has a need of dead time insertion to prevent damage of the power switching device like GPIBs due to being active on simultaneously of the...

Страница 326: ...ardware to assert a Fault Brake interrupt if enabled PWMnFBD data output remains even after the FBF is cleared by software User should resume the PWM output only by setting PWM0RUN again Meanwhile the...

Страница 327: ...flag PWMF PWMnCON0 5 to indicate certain point of each complete PWM period The indicating PWM channel and point can be selected by INTSEL 2 0 and INTTYP 1 0 PWMnINTC 2 0 and 5 4 Note that the center p...

Страница 328: ...t type select These bit select PWM interrupt type 00 Falling edge on PWM channel 0 1 2 3 4 5 pin 01 Rising edge on PWM channel 0 1 2 3 4 5 pin 10 Central point of a PWM period 11 End point of a PWM pe...

Страница 329: ...nter Dead time PWMF falling edge INTTYP 1 0 0 0 PWMF rising edge INTTYP 1 0 0 1 Edge aligned PWM Center aligned PWM Reserved Figure 6 6 9 PWM Interrupt Type Fault Brake event requests another interrup...

Страница 330: ...ected on the next PWM cycle After the loading is complete LOAD will be automatically cleared via hardware The meaning of writing and reading LOAD bit is different Writing 0 No effect 1 Load new period...

Страница 331: ...PWM1RUN PWM1 run enable 0 PWM1 stays in idle 1 PWM1 starts running Note This bit is only for PWM0CON0 0 P33FBINEN P33 FB pin input enable 0 PWM0 output Fault Braked by P33 FB pin input Disabled 1 PWM...

Страница 332: ...r the loading is complete LOAD will be automatically cleared via hardware The meaning of writing and reading LOAD bit is different Writing 0 No effect 1 Load new period and duty in their buffers while...

Страница 333: ...es the group mode If enabled the duty of first three pairs of PWM are decided by PWM01H and PWM01L rather than their original duty control registers 0 Group mode Disabled 1 Group mode Enabled Note Thi...

Страница 334: ...91 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 2 0 PWMDIV 2 0 PWM clock divider This field decides the pre scale of PWM clock source 000 1 1 001 1 2 010 1 4 011 1 8 100 1...

Страница 335: ...lock Control Register SFR Address Reset Value CKCON 8EH Page0 0000_0000b 7 6 5 4 3 2 1 0 PWMCKS T1M T0M T0OE CLOEN R W R W R W R W R W Bit Name Description 6 PWMCKS PWM clock source select 0 The clock...

Страница 336: ...1 2 3 Register SFR Address Reset Value PWM0PL D9H Page 0 0000_0000 b PWM1PL B1H Page 2 0000_0000 b PWM2PL C1H Page 2 0000_0000 b PWM3PL D1H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 PWM0P 7 0 R W Bit Name D...

Страница 337: ...1 2 3 Register SFR Address Reset Value PWM0PH D1H Page 0 0000_0000 b PWM1PH A9H Page 2 0000_0000 b PWM2PH B9H Page 2 0000_0000 b PWM3PH C9H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 PWM0P 15 8 R W Bit Name D...

Страница 338: ...nnel 1 Duty High Byte 0000_0000 b PWM0C2H D4H Page 0 PWM0 Channel 2 Duty High Byte 0000_0000 b PWM0C3H D5H Page 0 PWM0 Channel 3 Duty High Byte 0000_0000 b PWM0C4H C4H Page 1 PWM0 Channel 4 Duty High...

Страница 339: ...Channel 1 Duty Low Byte 0000_0000 b PWM0C2L DCH Page 0 PWM0 Channel 2 Duty Low Byte 0000_0000 b PWM0C3L DDH Page 0 PWM0 Channel 3 Duty Low Byte 0000_0000 b PWM0C4L CCH Page 1 PWM0 Channel 4 Duty Low B...

Страница 340: ...alid only when PWM0C4 5 is under complementary mode 0 No delay on P0G4 P0G5 pair signals 1 Insert dead time delay on the rising edge of P0G4 P0G5 pair signals 1 PDT23EN PWM0_CH2 3 pair dead time inser...

Страница 341: ...5 4 3 2 1 0 PWM0DTCNT 7 0 R W Bit Name Description 7 0 PWM0DTCNT 7 0 PWM0 dead time counter low byte This 8 bit field combined with PWM0DTEN 4 forms a 9 bit PWM0 dead time counter PWM0DTCNT This count...

Страница 342: ...R W Bit Name Description x PMENx PWMnCx mask enable 0 PWMnCx signal outputs from its PWM generator 1 PWMnCx signal is masked by PMDx Note PMEN2 5 are only for PWM0 Register SFR Address Description Res...

Страница 343: ...nCx mask data The PWMnCx signal outputs mask data once its corresponding PMENx is set 0 PWMnCx signal is masked by 0 1 PWMnCx signal is masked by 1 Note PMD2 5 are only for PWM0 Register SFR Address D...

Страница 344: ...R W R W Bit Name Description 3 FBINEN FB pin input enable 0 PWM output Fault Braked by FB pin input Disabled 1 PWM output Fault Braked by FB pin input Enabled Once an edge which matches FBINLS PWM0FB...

Страница 345: ...n 7 FBF Fault Brake flag This flag is set when FBINEN is set as 1 and FB pin detects an edge which matches FBINLS PWM0FBD 6 selection This bit is cleared by software After FBF is cleared Fault Brake d...

Страница 346: ...tive Polarity Register SFR Address Reset Value PNP D6H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 PNP5 PNP4 PNP3 PNP2 PNP1 PNP0 R W R W R W R W R W R W Bit Name Description 5 0 PNPn PWMn negative polarity out...

Страница 347: ...output PWM3_CH0P 10 select PWM3_CH0 others select PWM0C4 3 PIO03 P0 0 PWM pin function select 0 P0 0 PWM pin functions as P0 0 1 P0 0 PWM pin functions as PWM0_CH3 PWM2_CH1 output PWM2_CH1P 10 select...

Страница 348: ...ut When AUXR5 3 2 PWM3CH1P 11 PIO15 1 P1 5 define as PWM3_CH1 When AUXR5 3 2 PWM3CH1P 00 PIO15 1 P1 5 define as PWM0_CH5 3 PIO04 P0 4 PWM pin function select 0 P0 4 PWM pin functions as P0 4 1 P0 4 PW...

Страница 349: ...3 3 1 P3 3 PWM0C0 pin functions as PWM0_CH1 output 5 PIO32 P3 2 PWM3_CH0 pin function select 0 P3 2 PWM3_CH0 pin functions as P3 2 1 P3 2 PWM3_CH0 pin functions as PWM3_CH0 output 4 PIO31 P3 1 PWM2_CH...

Страница 350: ...PWM2_CH1 to P3 0 01 Assign PWM2_CH1 to P3 1 10 Assign PWM2_CH1 to P0 0 11 Assign PWM2_CH1 to P0 4 5 4 PWM2_CH0P PWM2 channel 0 pin select 00 Reserved by default 01 Assign PWM2_CH0 to P2 1 10 Assign P...

Страница 351: ...00_0000 b 7 6 5 4 3 2 1 0 CLOP T0P PWM3_CH1P PWM3_CH0P R W R W R W R W Bit Name Description 3 2 PWM3_CH1P PWM3 channel 1 pin select 00 Reserved by default 01 Assign PWM3_CH1 to P3 4 10 Assign PWM3_CH1...

Страница 352: ...ONFIG4 7 4 initialize the WDT to operate as a time out reset timer or a general purpose timer The Watchdog time out interval is determined by the formula 64 scalar divider clock F 1 LIRC where FLIRC i...

Страница 353: ...e Others WDT is Enabled as a time out reset timer and it keeps running during Idle or Power down mode The WDT is implemented with a set of divider that divides the low speed internal oscillator clock...

Страница 354: ...cleared 5 WDTF WDT time out flag This bit indicates an overflow of WDT counter This flag should be cleared by software 4 WIDPD WDT running in Idle or Power down mode This bit is valid only when contro...

Страница 355: ...WDT occurs the WDT reset flag WDTRF WDCON 3 will be set This bit keeps unchanged after any reset other than a power on reset User may clear WDTRF via software Note that all bits in WDCON require time...

Страница 356: ...ption of Idle mode still keeps at a mA level To further reducing the current consumption to uA level the CPU should stay in Power down mode when nothing needs to be served and has the ability of wakin...

Страница 357: ...timer and it stops running during Idle or Power down mode Others WDT is Enabled as a time out reset timer and it keeps running during Idle or Power down mode The WDT is implemented with a set of divid...

Страница 358: ...1 WDT counter is not yet cleared 5 WDTF WDT time out flag This bit indicates an overflow of WDT counter This flag should be cleared by software 4 WIDPD WDT running in Idle or Power down mode This bit...

Страница 359: ...of WKT will not automatically enabled along with WKT configuration User should manually enable the selected clock source and waiting for stability to ensure a proper operation The WKT is implemented...

Страница 360: ...interrupt and the global interrupt are enabled setting this bit will make CPU execute WKT interrupt service routine This bit is not automatically cleared via hardware and should be cleared via softwa...

Страница 361: ...Reload Low Byte Register SFR Address Reset Value RWKL 86H Page 0 0000 0000b 7 6 5 4 3 2 1 0 RWK 7 0 R W Bit Name Description 7 0 RWK 7 0 WKT reload low byte The RWKL register is the low byte of the 1...

Страница 362: ...eload High Byte Register SFR Address Reset Value RWKH 97H Page 2 0000 0000b 7 6 5 4 3 2 1 0 RWK 15 8 R W Bit Name Description 7 0 RWK 15 8 WKT reload high byte The RWKH register is the low byte of the...

Страница 363: ...communication with external devices Serial data centers and exits through RXD pin TXD outputs the shift clocks 8 bit frame of data are transmitted or received Mode 0 therefore provides half duplex co...

Страница 364: ...gin at any time Reception is initiated by a detected 1 to 0 transition at RXD Data will be sampled and shifted in at the selected baud rate In the midst of the stop bit certain conditions should be me...

Страница 365: ...ditions fail there will be no data loaded and RI will remain 0 After above receiving progress the serial control will look forward another 1 to 0 transition on RXD pin to start next data reception Mod...

Страница 366: ...256 F 32 1 SYS Timer 3 3 RL 3 RH 256 65536 scale Pre F 32 1 SYS 1 Time1 TM1 CKCON 3 0 TH1 256 12 F 16 1 SYS Time1 TM1 CKCON 3 1 TH1 256 F 16 1 SYS Timer 3 RL3 RH3 256 65536 scale Pre F 16 1 SYS 2 11...

Страница 367: ...3 256 65536 scale Pre F 16 1 SYS Table 6 9 2 Serial Port UART1 Mode baudrate Description Sample code we list the most popular UART setting Mode 1 initial step as following Serial port 0 UART0 use time...

Страница 368: ...and the deviation value Fsys Value Baud Rate TH1 Value Hex RH3 RL3 Value Hex Baudrate Deviation 24 MHz 4800 64 SMOD 0 FEC8 0 160256 9600 64 FF64 0 160256 19200 B2 FFB2 0 160256 38400 D9 FFD9 0 160256...

Страница 369: ...1 so that when a byte of frame is received the serial interrupt will be generated only if the 9th bit is 1 For Mode 2 the 9th bit is the stop bit When the SM2 bit is 1 serial data frames that are rec...

Страница 370: ...bit Using the automatic address recognition feature allows a master to selectively communicate with one or more slaves by invoking the Given slave address or addresses All of the slaves may be contact...

Страница 371: ...ess is 11100011b To select Slaves 0 and 1 and exclude Slave 2 use address 11100100b since it is necessary to make bit 2 1 to exclude slave 2 The Broadcast address for each slave is created by taking t...

Страница 372: ...ud rate between FSYS 12 and FSYS 2 0 The clock runs at FSYS 12 baud rate It maintains standard 8051compatibility 1 The clock runs at FSYS 2 baud rate for faster serial communication Mode 1 This bit ch...

Страница 373: ...0 after the 8th bit in Mode 0 or the last data bit in other modes When the serial port 0 interrupt is enabled setting this bit causes the CPU to execute the serial port 0 interrupt service routine Thi...

Страница 374: ...ption is always valid no matter the logic level of stop bit 1 Reception is valid only when the received stop bit is logic 1 and the received data matches Given or Broadcast address Mode 2 or 3 For mul...

Страница 375: ...s bit causes the CPU to execute the serial port 1 interrupt service routine This bit must be cleared manually via software 0 RI_1 Receiving interrupt flag This flag is set via hardware when a data fra...

Страница 376: ...DL R W R W RW R W R W R W R W R W Bit Name Description 7 SMOD Serial port 0 double baud rate enable Setting this bit doubles the serial port baud rate when UART0 is in Mode 2 or when Timer 1 overflow...

Страница 377: ...details 6 SMOD0_1 Serial port 1 framing error access enable 0 S1CON 7 accesses to SM0_1 bit 1 S1CON 7 accesses to FE_1 bit SBUF Serial Port 0 Data Buffer Register SFR Address Reset Value SBUF 99H Pag...

Страница 378: ...it Name Description 7 0 SBUF_1 7 0 Serial port 1 data buffer This byte actually consists two separate registers One is the receiving resister and the other is the transmitting buffer When data is move...

Страница 379: ...egister SFR Address Reset Value IE A8H All pages Bit addressable 0000 _0000 b 7 6 5 4 3 2 1 0 EA EADC EBOD ES ET1 EX1 ET0 EX0 R W R W R W R W R W R W R W R W Bit Name Description 4 ES Enable serial po...

Страница 380: ...Register SFR Address Reset Value EIE1 9CH Page 0 0000 _0000 b 7 6 5 4 3 2 1 0 EPWM3 EPWM2 EPWM1 EWKT ET3 ES_1 R W R W R W R W R W R W Bit Name Description 0 ES1 Enable serial port 1 interrupt 0 Serial...

Страница 381: ...CE MANUAL SADDR Slave 0 Address Register SFR Address Reset Value SADDR A9H Page 0 0000 _0000 b 7 6 5 4 3 2 1 0 SADDR 7 0 R W Bit Name Description 7 0 SADDR 7 0 Slave 0 address This byte specifies the...

Страница 382: ...ss Reset Value SADEN B9H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 SADEN 7 0 R W Bit Name Description 7 0 SADEN 7 0 Slave 0 address mask This byte is a mask byte of UART0 that contains don t care bits define...

Страница 383: ...ANUAL SADDR_1 Slave 1 Address Register SFR Address Reset Value SADDR_1 BBH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 SADDR_1 7 0 R W Bit Name Description 7 0 SADDR_1 7 0 Slave 1 address This byte specifies t...

Страница 384: ...Reset Value SADEN_1 BAH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 SADEN_1 7 0 R W Bit Name Description 7 0 SADEN_1 7 0 Slave 1 address mask This byte is a mask byte of UART1 that contains don t care bits de...

Страница 385: ...4 3 2 1 0 SWRF RSTPINF HardF SLOW GF2 UART0PX 0 DPS R W R W R W R W R W R W R R W Bit Name Description 2 UART0PX Serial port 0 pin exchange 0 Assign RXD to P0 7 and TXD to P0 6 by default 1 Exchange R...

Страница 386: ...000 b 7 6 5 4 3 2 1 0 UART2TXP UART2RXP UART1TXP UART1RXP R W R W R W R W Bit Name Description 3 2 UART1TXP UART1 TX pin select 00 Reserved by default 01 Assign UART1 TX to P1 6 10 Assign UART1 TX to...

Страница 387: ...ta Bus TX_OUT RX_IN Figure 6 10 1 SC Controller Block Diagram ISO 7816 3 T 0 T 1 compliant Programmable transmission clock frequency Programmable extra guard time selection Supports auto inverse conve...

Страница 388: ...ace controller supports activation cold reset warm reset and deactivation sequence by software control The activation cold reset warm reset and deactivation and sequence are shown as follows SC Interf...

Страница 389: ...T at high level reception mode by software programming to 1 period of timing T1 3 Enable SCn_CLK clock by programming CLKKEEP SCCR2 1 to 1 after timing T1 4 De assert SCn_RST to high by software progr...

Страница 390: ...measured by chip IO pin the real value will depended on system design Time 81 129 161 161 483 531 563 42106 T4 T5 T5 T6 Suggesting timing Unit SC Clock 400 T6 40000 SC_DAT SC_RST SC_RST to SC_DAT Rec...

Страница 391: ...gth by setting WLS SCCR2 5 4 parity format by setting OPE SCCR2 7 and PBOFF SCCR2 6 and stop bit length by setting NSB SCnCR1 7 5 Write the SCnDR SCnDR 7 0 TX register or read the SCnDR SCnDR 7 0 RX r...

Страница 392: ..._DAT to low by 1 5 bit period to inform the transmitter parity error Then the transmitter will retransmit the character The SC interface controller supports hardware error detection function SC0TSR 4...

Страница 393: ...O 7816 3 host controller sends data to ISO 7816 3 first If the ISO 7816 3 sends data to ISO 7816 3 host controller at the time which is less than 16 5 or 22 5 by T bit setting the block guard time int...

Страница 394: ...d indicates the counter for the bit length of block guard time According to ISO 7816 3 in T 0 mode the software must clear T bit to 0 for real block guard time 16 5 In T 1 mode the software must set T...

Страница 395: ...e before Answer to Reset state and the first data must be 0x3B or 0x3F After hardware received first data and stored it at buffer hardware will decided the convention and change the CONSEL SCnCR0 4 bi...

Страница 396: ...the last data word bit and stop bit of the serial data 1 Parity bit is not generated transmitting data or checked receiving data during transfer Note In ISO 7816 3 mode this field must be 0 default se...

Страница 397: ...UART Mode Enable Bit 0 ISO 7816 3 mode 1 UART mode Note 1 When operating in UART mode user must set CONSEL SCnCR0 4 0 and AUTOCEN SCnCR0 3 0 Note 2 When operating in ISO 7816 3 mode user must set UAR...

Страница 398: ...age 2 0000_0000 b SC2DR E9H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 SCnDR 7 0 R W Bit Name Description 7 0 SCnDR 7 0 SC UART buffer data This byte is used for transmitting or receiving data on SC UART bus...

Страница 399: ...rd Time Register Register SFR Address Reset Value SC0EGT DAH Page 2 0000_0000 b SC1EGT E2H Page 2 0000_0000 b SC2EGT EAH Page 2 0000_0000 b 7 6 5 4 3 2 1 0 SCnEGT 7 0 R W Bit Name Description 7 0 SCnE...

Страница 400: ...DBH Page 2 0111_0011 b SC1ETURD0 E3H Page 2 0111_0011 b SC2ETURD0 EBH Page 2 0111_0011 b 7 6 5 4 3 2 1 0 ETURDIV 7 0 R W Bit Name Description 7 0 ETURDIV 7 0 LSB bits of ETU Rate Divider The field ind...

Страница 401: ...Description 7 Reserved 6 4 SCDIV 2 0 SC clock divider 000 FSC is FSYS 1 001 FSC is FSYS 2 010 FSC is FSYS 4 011 FSC is FSYS 8 By default 100 FSC is FSYS 16 101 FSC is FSYS 16 110 FSC is FSYS 16 111 FS...

Страница 402: ...t 0 Block guard time interrupt Disabled 1 Block guard time interrupt Enabled 2 TERRIEN Transfer Error Interrupt Enable Bit This field is used to enable transfer error interrupt The transfer error stat...

Страница 403: ...us Flag Read Only This field is used for transfer error interrupt status flag The transfer error states is at SC0TSR register which includes receiver break error BEF SC0TSR 6 frame error FEF SC0TSR 5...

Страница 404: ...ever the received character does not have a valid stop bit that is the stop bit following the last data bit or parity bit is detected as logic 0 Note This bit is read only but it can be cleared by wri...

Страница 405: ...91 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL Bit Name Description 0 RXOV RX Overflow Error Status Flag Read Only This bit is set when RX buffer overflow Note This bit is read only but it can...

Страница 406: ...H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 UART2TXP UART2RXP UART1TXP UART1RXP R W R W R W R W Bit Name Description 7 6 UART2TXP UART2 TX pin select 00 Reserved by default 01 Assign UART2 TX to P0 3 10 Assi...

Страница 407: ...UART4 TX pin select 00 Reserved by default 01 Assign UART4 TX to P2 3 10 Reserved 11 Reserved 5 4 UART4RXP UART4 RX pin select 00 Reserved by default 01 Assign UART4 RX to P2 2 10 Reserved 11 Reserve...

Страница 408: ...l the line high In MS51 user should set output latches of I2C0_SCL and I2C0_SDA As logic 1 before enabling the I 2 C function by setting I2CEN SDA SCL Slave Device SDA SCL Other MCU SDA SCL VDD RUP RU...

Страница 409: ...thout first generating a STOP condition Various combinations of read write formats are then possible within such a transfer SDA SCL START STOP START Repeated START STOP Figure 6 11 3 START Repeated ST...

Страница 410: ...the General Call it operates as like in the slave receiver mode Note that the address 0x00 is reserved for General Call and cannot be used as a slave address therefore in theory a 7 bit addressing I 2...

Страница 411: ...the competing master devices to place a 1 high on I2C0_SDA while another master transmits a 0 low switches off its data output stage because the level on the bus does not match its own level The arbit...

Страница 412: ...tion of the new action a new status code will be updated in I2C_STATUS0 register and the SI flag of I2C_CTL0 register will be set But the SI flag will not be set when I2 C STOP If the I2 C interrupt c...

Страница 413: ...A STO SI AA 1 0 1 x STATUS 0xF8 STA STO SI AA 0 1 1 x STATUS 0x08 STA STO SI AA 1 1 1 x I2CnDAT SLA W ACK NAK Arbitration Lost STATUS 0x38 I2C_DAT SLA W STA STO SI AA 0 0 1 x I2CnDAT Data ACK NAK STAT...

Страница 414: ...repeated START condition to terminate the transmission or initial another one I2CnDAT SLA R ACK NAK I2CnDAT Data NAK I2CnDAT Data ACK P S P Sr I2CnDAT SLA R STA STO SI AA 0 0 1 x STATUS 0x40 STATUS 0x...

Страница 415: ...late with the master It cannot receive any byte of data with I2CnDAT remaining the previous byte of data which is just received Slave Transmitter The I2 C port is equipped with four slave address regi...

Страница 416: ...Data ACK NAK STA STO SI AA 0 0 1 1 I2CnDAT Data STA STO SI AA 0 0 1 0 STATUS 0x80 STATUS 0x88 Arbitration Lost Master to Slave Slave to Master STATUS 0xA0 Arbitration Lost STATUS 0x68 P Sr Sr P STATU...

Страница 417: ...X STA STO SI AA 0 0 1 X I2CnDAT SLA W 0x00 ACK Figure 6 11 13 Flow and Status of General Call Mode Miscellaneous States 6 11 2 6 There are two I2CnSTAT status codes that do not correspond to the 25 de...

Страница 418: ...t 0Xa8 Slave Transmit Address ACK 0x18 Master Transmit Address ACK 0Xb0 Slave Transmit Arbitration Lost 0x20 Master Transmit Address NACK 0Xb8 Slave Transmit Data ACK 0x28 Master Transmit Data ACK 0Xc...

Страница 419: ...0x28 28H DATA transmitted ACK received if Conti_TX_Data if continuing to send DATA I2DAT NEXT_SEND_DATA2 else if no DATA to be sent STO 1 AA 1 break case 0x30 30H DATA transmitted NACK received STO 1...

Страница 420: ...Call received ACK returned AA 0 STA 1 break case 0x80 80H previous own SLA W DATA received ACK returned DATA_RECEIVED2 I2DAT if To_RX_Last_Data2 AA 0 else AA 1 break case 0x88 88H previous own SLA W...

Страница 421: ...eceived not addressed SLAVE mode entered AA 1 break case 0Xc8 C8H previous own SLA R last DATA trans mitted ACK received not addressed SLAVE AA 1 mode entered break end of switch I2STAT SI 0 SI should...

Страница 422: ...Counter 6 11 5 I 2 C Interrupt There are two I 2 C flags SI and I2TOF Both of them can generate an I 2 C event interrupt requests If I 2 C interrupt mask is enabled via setting EI2 C and EA as 1 CPU w...

Страница 423: ...ag When STA is set the I 2 C generates a START condition if the bus is free If the bus is busy the I 2 C waits for a STOP condition and generates a START condition following If STA is set while the I...

Страница 424: ...C device is a receiver or an own address matching slave If the AA flag is cleared a NACK high level on I2C0_SDA will be returned during the acknowledge clock pulse of the I2C0_SCL line while the I 2...

Страница 425: ...bits of I2STAT are always read as 0 I2DAT I 2 C Data Register SFR Address Reset Value I2DAT BCH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 I2DAT 7 0 R W Bit Name Description 7 0 I2DAT 7 0 I 2 C data I2DAT con...

Страница 426: ...hould address I 2 C device by sending the same address in the first byte data after a START or a repeated START condition If the AA flag is set this I 2 C device will acknowledge the master after rece...

Страница 427: ...is register determines the clock rate of I 2 C bus when the device is in a master mode The clock rate follows the equation 1 CLK 2 I 4 FSYS The default value will make the clock rate of I 2 C bus 400k...

Страница 428: ...EN I 2 C time out counter enable 0 I 2 C time out counter Disabled 1 I 2 C time out counter Enabled Note please always enable I 2 C interrupt when enable I 2 C time out counter function 1 DIV I 2 C ti...

Страница 429: ...E SPIEN Internal Data Bus FSYS Write Data Buffer 8 bit Shift Register Read Data Buffer Figure 6 12 1 SPI Block Diagram Figure15 1 SPI Block Diagram shows SPI block diagram It provides an overview of S...

Страница 430: ...a general purpose I O However SS can be used as Master Mode Fault detection see chapter 6 12 5 Mode Fault Detection via software setting if multi master environment exists The MS51 also provides auto...

Страница 431: ...the data received from the Slave is also transferred in SPInDR User can clear SPIF and read data out of SPInDR Slave Mode 6 12 2 2 When MSTR is 0 the SPI operates in Slave mode The SPCLK pin becomes i...

Страница 432: ...an example of LSBFE 0 MSB first Therefore the Slave should shift its MSB data before the first SPCLK edge The falling edge of SS is used for preparing the MSB on MISO line The SS pin therefore should...

Страница 433: ...5 SPI Clock and Data Format with CPHA 0 Transfer Progress 1 internal signal SPCLK Cycles SPCLK CPOL 0 MOSI SS output of Master 2 SPIF Master 1 2 3 4 5 6 7 8 SPCLK CPOL 1 MSB MISO 6 5 4 3 2 1 LSB MSB I...

Страница 434: ...nerated if ESPI and EA are enabled 6 12 6 Write Collision Error The SPI is signal buffered in the transfer direction and double buffered in the receiving and transmit direction New data for transmissi...

Страница 435: ...ure 6 12 7 SPI Overrun Waveform 6 12 8 SPI Interrupt Three SPI status flags SPIF MODF and SPIOVF can generate an SPI event interrupt requests All of them locate in SPInSR SPIF will be set after comple...

Страница 436: ...electing external Slave device and goes high during each idle state to de select the Slave device 6 PIEN SPI enable 0 SPI function Disabled 1 SPI function Enabled 5 LSBFE LSB first enable 0 The SPI da...

Страница 437: ...FSYS 16 MHz condition Fsys 16 MHz SPR1 SPR0 Divider SPI clock rate 0 0 2 8M bit s 0 1 4 4M bit s 1 0 8 2M bit s 1 1 16 1 M bit s Fsys 24 MHz SPR1 SPR0 Divider SPI clock rate 0 0 2 12M bit s 0 1 4 6M...

Страница 438: ...election between adjacent bytes SPIS 1 0 and CPHA select eight grades of SPI interval time selection between adjacent bytes As below table CPHA SPIS1 SPIS0 SPI clock 0 0 0 0 5 0 0 1 1 0 0 1 0 1 5 0 1...

Страница 439: ...an overrun event occurs this bit will be set If ESPI and EA are enabled an SPI interrupt will be required This bit should be cleared via software 4 MODF Mode Fault error flag This bit indicates a Mod...

Страница 440: ...0000 b 7 6 5 4 3 2 1 0 SPDR 7 0 R W Bit Name Description 7 0 SPDR 7 0 Serial peripheral data This byte is used for transmitting or receiving data on SPI bus A write of this byte is a write to the shif...

Страница 441: ...ADC ADCRH ADCRL ADCF ADC result comparator External Trigger VDD ADCEN ADCS ADC XRAM Control ADCBAH ADCSN XRAM Auxiliary RAM ADC Interrupt 1 2 ADC flag Re trigger VREF V REF ADC VDD STADC ADC_CH0 ADC_C...

Страница 442: ...et ADCF ADCCON0 7 and generate an interrupt if enabled The new conversion result will also be stored in ADCRH most significant 8 bits and ADCRL least significant 4 bits The 12 bit ADC result value is...

Страница 443: ...ADC_ channel analog input ADC_CH15 P2 5 ADC_ channel analog input ADC Conversion Triggered by External Source 6 13 2 2 Besides setting ADCS via software the MS51 32K series is enhanced by supporting h...

Страница 444: ...after enabling the result compare function the ADCF register changes to 1 only when ADC comparing result matches the condition and then enters interrupt vector if ADC interrupt is enabled After this...

Страница 445: ...ivide 8 bit high byte and 4 bit low nibble data two part Considering to reduce XRAM memory size two 4 bit nibble data continuing ADC conversion results are automatically combine into one byte size and...

Страница 446: ...ADC into continues conversion mode 3 Set ADCBAH and ADCBAL registers to configure store address of conversion result 4 Set ADCCN register to configure ADC conversion count 5 Set HIE FIE ADCCON1 5 to e...

Страница 447: ...d While this flag is 1 ADC cannot start a new converting This bit is cleared by software 6 ADCS A D converting software start trigger Setting this bit 1 triggers an A D conversion This bit remains log...

Страница 448: ...el select This filed selects the activating analog input source of ADC If ADCEN is 0 all inputs are disconnected 0000 ADC_CH0 0001 ADC_CH1 0010 ADC_CH2 0011 ADC_CH3 0100 ADC_CH4 0101 ADC_CH5 0110 ADC_...

Страница 449: ...e clock divider value 00 FADCAQT FSYS 1 01 FADCAQT FSYS 2 10 FADCAQT FSYS 4 11 FADCAQT FSYS 8 3 2 ETGTYP 1 0 External trigger type select When ADCEX ADCCON1 1 is set these bits select which condition...

Страница 450: ...t to 1 This condition base on ADCMPH ADCMPL and ADCMPOP register define The ADCF register changes to 1 only when ADC comparing result matches the condition and then enters interrupt vector if ADC inte...

Страница 451: ...tinue sampling ADC interrupt is set while total A D conversions are completed 3 1 ADCAQT1 ADC acquisition time 1 This 3 bit field decides the acquisition time for ADC AIN9 AIN15 sampling following by...

Страница 452: ...7 0 ADC external trigger delay counter low byte This 8 bit field combined with ADCCON2 0 forms a 9 bit counter This counter inserts a delay after detecting the external trigger An A D converting star...

Страница 453: ...ddress Reset Value AINDIDS0 F6H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 P11DIDS P03DIDS P04DIDS P05DIDS P06DIDS P07DIDS P30DIDS P17DIDS R W R W R W R W R W R W R W R W Bit Name Description 7 0 AINnDIDS ADC...

Страница 454: ...Disconnect Register SFR Address Reset Value AINDIDS1 99H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 P25DIDS P14DIDS P13DIDS P24DIDS P23DIDS P22DIDS P21DIDS Bit Name Description n PnnDIDS ADC Channel digital i...

Страница 455: ...CAL REFERENCE MANUAL ADCRH ADC Result High Byte Register SFR Address Reset Value ADCRH C3H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCR 11 4 R Bit Name Description 7 0 ADCR 11 4 ADC result high byte The mo...

Страница 456: ...EFERENCE MANUAL ADCRL ADC Result Low Byte Register SFR Address Reset Value ADCRL C2H Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCR 3 0 R Bit Name Description 7 4 Reserved 3 0 ADCR 3 0 ADC result low byte Th...

Страница 457: ...ERENCE MANUAL ADCMPH ADC Compare High Byte Register SFR Address Reset Value ADCMPH CFH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCMP 11 4 W R Bit Name Description 7 0 ADCMP 11 4 ADC compare high byte The m...

Страница 458: ...E MANUAL ADCMPL ADC Compare Low Byte Register SFR Address Reset Value ADCMPL CEH Page 0 0000_0000 b 7 6 5 4 3 2 1 0 ADCMP 3 0 W R Bit Name Description 7 4 Reserved 3 0 ADCMP 3 0 ADC compare low byte T...

Страница 459: ...gh Byte Register SFR Address Reset Value ADCBAH 84H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 ADCBAH 3 0 R W Bit Name Description 7 4 Reserved 3 0 ADCBAH 3 0 ADC RAM base address High byte The most significa...

Страница 460: ...ress Low Byte Register SFR Address Reset Value ADCBAL 85H Page 2 0000_0000 b 7 6 5 4 3 2 1 0 ADCBAL 7 0 R W Bit Name Description 7 0 ADCBAL 7 0 ADC RAM base address Low byte The least significant 8 bi...

Страница 461: ...E MANUAL ADCSN ADC Sampling Number Register SFR Address Reset Value ADCSN 8DH Page 2 0000_0000 b 7 6 5 4 3 2 1 0 ADCSN 7 0 R W Bit Name Description 7 0 ADCSN 7 0 ADC Sampling Number The total sampling...

Страница 462: ...CN ADC Current Sampling Number Register SFR Address Reset Value ADCCN 8EH Page 2 0000_0000 b 7 6 5 4 3 2 1 0 ADCCN 7 0 R W Bit Name Description 7 0 ADCCN 7 0 ADC Current Sampling Number The current sa...

Страница 463: ...it is set by hardware when ADCMPO ADCCON2 4 flag rising Note This bit can be cleared by writing 0 to it 1 HDONE A D Conversion Half Done Flag This bit is set by hardware when half of ADCSN A D convers...

Страница 464: ...2 1 0 SWRF RSTPINF HardF SLOW GF2 UART0PX 0 DPS R W R W R W R W R W R W R R W Bit Name Description 4 SLOW ADC Slow Speed Selection This bit is used to select ADC low speed 0 ADC convert time is high...

Страница 465: ...ointers and activating cyclic makes block RAM data move more simple and efficient than only one DPTR The INC AUXR1 instruction is the shortest 2 bytes instruction to accomplish DPTR toggling rather th...

Страница 466: ...alue DPL 82H All pages 0000_0000b 7 6 5 4 3 2 1 0 DPL 7 0 R W Bit Name Description 7 0 DPL 7 0 Data pointer low byte This is the low byte of 16 bit data pointer DPL combined with DPH serve as a 16 bit...

Страница 467: ...lue DPH 83H All pages 0000_0000b 7 6 5 4 3 2 1 0 DPH 7 0 R W Bit Name Description 7 0 DPH 7 0 Data pointer high byte This is the high byte of 16 bit data pointer DPH combined with DPL serve as a 16 bi...

Страница 468: ...0b 7 6 5 4 3 2 1 0 SWRF RSTPINF HardF SLOW GF2 UART0PX 0 DPS R W R W R W R W R W R W R R W Bit Name Description 3 GF2 General purpose flag 2 The general purpose flag that can be set or cleared by the...

Страница 469: ...2K SERIES TECHNICAL REFERENCE MANUAL 7 APPLICATION CIRCUIT 7 1 Power Supply Scheme VDD VSS 0 1uF N 10uF 0 1uF EXT_PWR EXT_VSS as close to VDD as possible as close to the EXT_PWR as possible MS51 Serie...

Страница 470: ...F nRESET VDD VSS I2 C Device CLK DIO I2C_SDA I2C_SCL DVCC DVCC VDD VSS SPI Device CS CLK MISO SPI_SS MOSI SPI_CLK SPI_MISO SPI_MOSI DVCC 10K 4 7K 4 7K Reset Circuit VDD VSS nRESET ICE_DAT ICE_CLK ICE...

Страница 471: ...DD is not adequate performing the Flash reading If an undetermined operating code is read from the program Flash and executed this will put CPU and even the whole system in to an erroneous state After...

Страница 472: ...the state keeps longer than 200 us glitch filter The POF will be set 1 Figure 7 3 1 nRESET Reset Waveform shows the nRESET reset waveform nRESET 0 2 VDD 0 7 VDD nRESET Reset 200 us 32 Fsys Clock Figu...

Страница 473: ...e MCU if BORST BODCON0 2 setting 1 After a brown out reset BORF BODCON0 1 will be set as 1 via hardware BORF will not be altered by any reset other than a power on reset or brown out reset itself This...

Страница 474: ...ck resuming After the system clock is stable MCU will enter the reset state There is a RSTPINF AUXR0 6 flag which indicates an external reset took place After the external reset this bit will be set a...

Страница 475: ...his bit keeps unchanged after any reset other than a power on reset or WDT reset itself User can clear WDTRF via software WDCON Watchdog Timer Control Register SFR Address Reset Value WDCON AAH Page 0...

Страница 476: ...nger than De glitch time set by LVRDGSEL SYS_BODCTL 14 12 The default setting of Low Voltage Reset is enabled without De glitch function Figure 7 3 4 shows the Low Voltage Reset waveform AVDD VLVR Low...

Страница 477: ...ctor BOD Waveform Watchdog Timer Reset WDT 7 3 1 10 In most industrial applications system reliability is very important To automatically recover the MCU from failure status is one way to improve syst...

Страница 478: ...8 2019 Page 478 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 8 ELECTRICAL CHARACTERISTICS Please refer to the relative Datasheet for detailed information about the MS51 electrical charac...

Страница 479: ...MS51 Nov 28 2019 Page 479 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 9 PACKAGE DIMENSIONS 9 1 QFN 33 pin 4 0 x 4 0 x 0 8 mm Figure 9 1 1 QFN 33 Package Dimension...

Страница 480: ...MS51 Nov 28 2019 Page 480 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 9 2 LQFP 32 pin 7 0 x 7 0 x 1 4 mm Figure 9 2 1 LQFP 32 Package Dimension...

Страница 481: ...MS51 Nov 28 2019 Page 481 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 9 3 TSSOP 28 pin 4 4 x 9 7 x 1 0 mm Figure 9 3 1 TSSOP 28 Package Dimension...

Страница 482: ...MS51 Nov 28 2019 Page 482 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 9 4 TSSOP 20 pin 4 4 x 6 5 x 0 9 mm Figure 9 4 1 TSSOP 20 Package Dimension...

Страница 483: ...MS51 Nov 28 2019 Page 483 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 9 5 QFN 20 pin 3 0 x 3 0 x 0 5mm Figure 9 5 1 QFN 20 Package Dimension...

Страница 484: ...Hz Internal High Speed RC Oscillator IAP In Application Programming ICP In Circuit Programming ISP In System Programming LDO Low Dropout Regulator LIRC 10 kHz internal low speed RC oscillator LIRC LVR...

Страница 485: ...called a one byte instruction In some cases more data is needed which is two or three byte instructions 11 1 Instruction Set And Addressing Modes Table 11 2 1 Instruction Set lists all instructions f...

Страница 486: ...24 2 2 6 ADDC A Rn 38 3F 1 2 6 ADDC A direct 35 2 3 4 ADDC A Ri 36 37 1 4 3 ADDC A data 34 2 2 6 SUBB A Rn 98 9F 1 2 6 SUBB A direct 95 2 3 4 SUBB A Ri 96 97 1 4 3 SUBB A data 94 2 2 6 INC A 04 1 1 1...

Страница 487: ...46 47 1 4 3 ORL A data 44 2 2 6 ORL direct A 42 2 4 3 ORL direct data 43 3 4 6 XRL A Rn 68 6F 1 2 6 XRL A direct 65 2 3 4 XRL A Ri 66 67 1 4 3 XRL A data 64 2 2 6 XRL direct A 62 2 4 3 XRL direct dat...

Страница 488: ...F6 F7 1 3 4 MOV Ri direct A6 A7 2 4 6 MOV Ri data 76 77 2 3 6 MOV DPTR data16 90 3 3 8 MOVC A A DPTR 93 1 4 6 MOVC A A PC 83 1 4 6 MOVX A Ri 1 E2 E3 1 5 4 8 MOVX A DPTR 1 E0 1 4 6 MOVX Ri A 1 F2 F3 1...

Страница 489: ...rel 70 2 3 8 JC rel 40 2 3 8 JNC rel 50 2 3 8 JB bit rel 20 3 5 4 8 JNB bit rel 30 3 5 4 8 JBC bit rel 10 3 5 4 8 CJNE A direct rel B5 3 5 4 8 CJNE A data rel B4 3 4 6 CJNE Rn data rel B8 BF 3 4 6 CJN...

Страница 490: ...MS51 Nov 28 2019 Page 490 of 491 Rev 1 00 MS51 32K SERIES TECHNICAL REFERENCE MANUAL 12 REVISION HISTORY Date Revision Description 2019 11 28 1 00 Initial release...

Страница 491: ...s but is not limited to equipment for surgical implementation atomic energy control instruments airplane or spaceship instruments the control or operation of dynamic brake or safety systems designed f...

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