EM78P143

EM78P143 8-Bit Microprocessor with OTP ROM Product Specification DOC. VERSION 1.7

ELAN MICROELECTRONICS CORP.

April 2016

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Copyright ? 2016 by ELAN Microelectronics Corporation All Rights Reserved

Printed in Taiwan

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Contents

Contents

1 2 3 4

General Description ................................................................................................ 1 Features ................................................................................................................... 1 Pin Assignment ....................................................................................................... 2 Pin Description ........................................................................................................ 3 4.1 EM78P143MS10J/S ......................................................................................... 3 4.2 EM78P143SO14J ............................................................................................. 4 5 6

Block Diagram ......................................................................................................... 5 Functional Description ............................................................................................ 6 6.1 Operational Registers ....................................................................................... 6

6.1.1 R0 (Indirect Address Register) ........................................................................... 6

6.1.2 R1 (Time Clock/Counter) ..................................................................................... 6 6.1.3 R2 (Program Counter) and Stack ........................................................................ 6

6.1.3.1 Data Memory Configuration ................................................................. 8

6.1.4 R3 (Status Register) ............................................................................................ 9 6.1.5 R4 (RAM Select Register) ................................................................................... 9 6.1.6 R5 (Port 5) ........................................................................................................... 9 6.1.7 R6 (LVD Control Register) ................................................................................ 10 6.1.8 R7 (MCSR: Miscellaneous Control and Status Register) ................................. 11 6.1.9 R8 (AISR: ADC Input Select Register) .............................................................. 12 6.1.10 R9 (ADCON: ADC Control Register) ................................................................. 13 6.1.11 RA (ADOC: ADC Offset Calibration Register) ................................................... 15 6.1.12 RB (ADDATAH: Converted Value of ADC) ........................................................ 15 6.1.13 RC (ADDATAL: ADC Converted Value) ............................................................ 15 6.1.14 RD (TBLP: LSB of Table Pointer Register for Instruction TBRD)...................... 16 6.1.15 RE (TBHP: MSB of Table Pointer Register for Instruction TBRD) .................... 16 6.1.16 RF (Interrupt Status Register) ........................................................................... 16 6.1.17 R10 ~ R3F ......................................................................................................... 17

6.2 Special Purpose Registers .............................................................................. 17

6.2.1 6.2.2 6.2.3 6.2.4 6.2.5 6.2.6 6.2.7 6.2.8 6.2.9 6.2.10

A (Accumulator) ................................................................................................. 17 CONT (Control Register) ................................................................................... 17 IOC50 (I/O Port Control Register) ..................................................................... 18 IOC60 (Pull-high Control Register) ................................................................... 18 IOC70 (Pull-down Control Register) ................................................................. 19 IOC80 (Open-Drain Control Register) ............................................................... 19 IOC90 (CMPCON: Comparator Control Register) ............................................ 20 IOCA0 ~ IOCC0: Reserved ............................................................................... 21 IOCD0 (Option Control Bit I) ............................................................................. 21 IOCE0 (Option Control Bits II) ........................................................................... 22

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Contents

6.2.11 6.2.12 6.2.13 6.2.14 6.2.15 6.2.16 6.2.17 6.2.18 6.2.19 6.2.20 6.2.21 6.2.22

IOCF0 (Interrupt Mask Register) ....................................................................... 23 IOC51 (PWMCON: PWM Control Register) ...................................................... 24 IOC61 (TMRCON: Timer Control Register) ...................................................... 25 IOC71 (PRD1: PWM1 Time Period) .................................................................. 26 IOC81 (PRD2: PWM2 Time Period) .................................................................. 26 IOC91 (DT1: PWM1 Duty Cycle) ...................................................................... 26 IOCA1 (DT2:PWM2 Duty Cycle) ....................................................................... 26 IOCB1 (TMR1: PWM1 Timer) ........................................................................... 26 IOCC1 (TMR2: PWM2 Timer) ........................................................................... 26 IOCD1 (Wake-up Control Register) .................................................................. 27 IOCE1 (WDT Control Register) ......................................................................... 27 IOCF1: Reserve ................................................................................................ 28

6.3 TCC/WDT and Prescaler ................................................................................ 29

6.4 I/O Ports ......................................................................................................... 30

6.4.1 Usage of Port 5 Input Change Wake-up/Interrupt Function .............................. 33

6.5 Reset and Wake-up ........................................................................................ 33

6.5.1 Reset and Wake-up Operation .......................................................................... 33

6.5.1.1 Summary of Wake-up and Interrupt Modes Operation ...................... 36 6.5.1.2 Summary of Wake-up and Interrupt Modes Operation ...................... 37 6.5.1.3 Register Initial Values after Reset ...................................................... 39 6.5.1.4 Controller Reset Block Diagram ......................................................... 43

6.5.2 T and P Status under Status Register ............................................................... 44

6.6 Interrupt .......................................................................................................... 44 6.7 Analog-to-Digital Converter (ADC) .................................................................. 47

6.7.1 ADC Control Register (AISR/R8, ADCON/R9, ADOC/RA) ............................... 47

6.7.1.1 R8 (AISR: ADC Input Select Register) ............................................... 47 6.7.1.2 R9 (ADCON: AD Control Register) .................................................... 48 6.7.1.3 RA (ADOC: AD Offset Calibration Register) ....................................... 50

6.7.2 ADC Data Register (ADDATAH/RB, ADDATAL/RC) ......................................... 51 6.7.3 ADC Sampling Time .......................................................................................... 51 6.7.4 AD Conversion Time ......................................................................................... 51 6.7.5 ADC Operation during Sleep Mode .................................................................. 52 6.7.6 Programming Process/Considerations ............................................................. 52

6.7.6.1 Programming Process ........................................................................ 52 6.7.6.2 Sample Demo Progra ......................................................................... 53

6.8 Dual Sets of PWM (Pulse Width Modulation) .................................................. 55

6.8.1

6.8.2 6.8.3 6.8.4 6.8.5

Overview ........................................................................................................... 55 Increment Timer Counter (TMRX: TMR1 or TMR2) .......................................... 56 PWM Time Period (PRDX: PRD1 or PRD2) ..................................................... 56 PWM Duty Cycle (DTX: DT1 or DT2; DLX: DL1 or DL2) ................................. 57 Comparator X .................................................................................................... 57

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6.8.6 PWM Programming Process/Steps ................................................................... 57 6.8.7 PWM Cascade Mode ........................................................................................ 58

6.9 Timer .............................................................................................................. 58

6.9.1 6.9.2 6.9.3 6.9.4 6.9.5 6.10.1 6.10.2 6.10.3 6.10.4 6.11.1 6.11.2 6.11.3 6.11.4

Overview ........................................................................................................... 58 Functional Description ....................................................................................... 59 Programming the Related Registers ................................................................. 60 Timer Programming Process/Steps .................................................................. 60 Timer Cascade Mode ........................................................................................ 60 Comparator Reference Signal ........................................................................... 61 Comparator Output............................................................................................ 63 Comparator Interrupt ......................................................................................... 64 Wake-up from Sleep Mode................................................................................ 64 Oscillator Modes ............................................................................................... 65 Crystal Oscillator/Ceramic Resonators (Crystal) .............................................. 65 External RC Oscillator Mode ............................................................................. 66 Internal RC Oscillator Mode .............................................................................. 67

6.10 Comparator ..................................................................................................... 61

6.11 Oscillator ......................................................................................................... 65

6.12 Power-on Considerations ................................................................................ 68

6.12.1 Programmable WDT Time-out Period ............................................................... 68

6.12.2 External Power-on Reset Circuit ....................................................................... 68 6.12.2 Residual Voltage Protection .............................................................................. 69

6.13 Code Option ................................................................................................... 70

6.13.1 Code Option Register (Word 0) ......................................................................... 70 6.13.2 Code Option Register (Word 1) ......................................................................... 71 6.13.3 Customer ID Register (Word 2) ......................................................................... 72

6.14 Low Voltage Detector ...................................................................................... 72

6.14.1 Low Voltage Reset (LVR) .................................................................................. 73 6.14.2 Low Voltage Detector (LVD) .............................................................................. 73

6.14.2.1 R6 (LVD Control Register) .................................................................. 73

6.14.3 Programming Process ....................................................................................... 74 6.15 Instruction Set ................................................................................................... 76

7 8

Absolute Maximum Ratings .................................................................................. 78 DC Electrical Characteristics ................................................................................ 78 8.1 AD Converter Characteristics .......................................................................... 80 8.2 Comparator Characteristics ............................................................................ 81

9 AC Electrical Characteristics ................................................................................ 82

10 Timing Diagrams ................................................................................................... 83

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