Holtek HT46R47 User manual

HT46R47, HT46R22,

HT46R23, HT46R24

A/D Type MCU

Handbook

October 2004

may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photo-

copying, recording, or otherwise without the prior written permission of HOLTEK SEMICONDUCTOR INC.

Contents

Part I Microcontroller Profile ................................................................... 1

Chapter 1 Hardware Structure ......................................................................................... 3

Introduction ....................................................................................................................3

Features ......................................................................................................................... 4

Technology Features ............................................................................................... 4

Kernel Features ....................................................................................................... 4

Peripheral Features ................................................................................................. 4

Selection Table .............................................................................................................. 5

Block Diagram ............................................................................................................... 6

Pin Assignment .............................................................................................................. 7

Pin Description ............................................................................................................... 8

Absolute Maximum Ratings ......................................................................................... 12

D.C. Characteristics ..................................................................................................... 12

A.C. Characteristics ..................................................................................................... 14

System Architecture ..................................................................................................... 15

Clocking and Pipelining ......................................................................................... 15

Program Counter ................................................................................................... 16

Stack ..................................................................................................................... 18

Arithmetic and Logic Unit -ALU ........................................................................... 18

Program Memory ......................................................................................................... 19

Organization .......................................................................................................... 19

Special Vectors ..................................................................................................... 20

Look-up Table ........................................................................................................ 20

Table Program Example ........................................................................................ 21

Data Memory ............................................................................................................... 22

Organization .......................................................................................................... 22

General Purpose Data Memory ............................................................................ 23

Special Purpose Data Memory ............................................................................. 24

Contents

Special Function Registers .......................................................................................... 25

Indirect Addressing Registers -IAR, IAR0, IAR1 ................................................. 25

Memory Pointers -MP, MP0, MP1 ....................................................................... 25

Bank Pointer -BP ................................................................................................. 26

Accumulator -ACC ............................................................................................... 26

Program Counter Low Register -PCL ................................................................. 26

Look-up Table Registers -TBLP, TBLH ................................................................ 27

Status Register -STATUS .................................................................................... 27

Interrupt Control Registers -INTC, INTC0, INTC1 ............................................... 28

Timer/Event Counter Registers ............................................................................. 28

Input/Output Ports and Control Registers ............................................................. 28

Pulse Width Modulator Registers -PWM, PWM0, PWM1, PWM2, PWM3 .......... 29

I2C Bus Registers -HADR, HCR, HSR, HDR ....................................................... 29

A/D Converter Registers -ADRL, ADRH, ADCR, ADSR ..................................... 29

Input/Output Ports ........................................................................................................ 29

Pull-high Resistors ................................................................................................ 30

Port A Wake-up ..................................................................................................... 30

I/O Port Control Registers ..................................................................................... 30

Pin-shared Functions ............................................................................................ 30

Programming Considerations ................................................................................ 34

Timer/Event Counters .................................................................................................. 34

Configuring the Timer/Event Counter Input Clock Source .................................... 35

Timer Registers -TMR, TMRL/TMRH, TMR0L/TMR0H, TMR1L/TMR1H ............ 36

Timer Control Registers -TMRC, TMR0C, TMR1C ............................................. 37

Configuring the Timer Mode .................................................................................. 39

Configuring the Event Counter Mode .................................................................... 39

Configuring the Pulse Width Measurement Mode ................................................. 40

Programmable Frequency Divider -PFD ............................................................. 41

Prescaler ............................................................................................................... 42

I/O Interfacing ........................................................................................................ 42

Programming Considerations ................................................................................ 42

Pulse Width Modulator ................................................................................................. 42

6+2 PWM Mode .................................................................................................... 43

7+1 PWM Mode .................................................................................................... 44

PWM Output Control ............................................................................................. 45

Analog to Digital Converter .......................................................................................... 46

A/D Converter Data Registers -ADRL/ADRH ...................................................... 46

A/D Converter Control Register -ADCR .............................................................. 47

A/D Converter Clock Source Register -ACSR ..................................................... 49

A/D Input Pins ....................................................................................................... 49

Summary of A/D Conversion Steps ...................................................................... 50

A/D Transfer Function ........................................................................................... 52

I2C Bus Serial Interface ............................................................................................... 54

I2C Bus Slave Address Register -HADR ............................................................. 55

I2C Bus Input/Output Data Register -HDR ........................................................... 55

I2C Bus Control Register -HCR ........................................................................... 55

I2C Bus Status Register -HSR ............................................................................. 55

A/D Type MCU

I2C Bus Communication ........................................................................................ 56

Interrupts ......................................................................................................................60

External Interrupt ................................................................................................... 63

Timer/Event Counter Interrupt ............................................................................... 63

A/D Interrupt .......................................................................................................... 64

I2C Interrupt ........................................................................................................... 64

Interrupt Priority ..................................................................................................... 64

Programming Considerations ................................................................................ 65

Reset and Initialization ................................................................................................. 65

Reset ..................................................................................................................... 65

Oscillator ......................................................................................................................72

System Clock Configurations ................................................................................ 72

System Crystal/Ceramic Oscillator ........................................................................ 72

System RC Oscillator ............................................................................................ 73

Watchdog Timer Oscillator .................................................................................... 73

HALT and Wake-up in Power Down Mode .................................................................. 73

Watchdog Timer ........................................................................................................... 74

Configuration Options .................................................................................................. 76

Application Circuits .......................................................................................................77

Part II Programming Language ............................................................. 81

Chapter 2 Instruction Set Introduction ......................................................................... 83

Instruction Set .............................................................................................................. 83

Instruction Timing .................................................................................................. 83

Moving and Transferring Data ............................................................................... 84

Arithmetic Operations ............................................................................................ 84

Logical and Rotate Operations .............................................................................. 84

Branches and Control Transfer ............................................................................. 84

Bit Operations ....................................................................................................... 84

Table Read Operations ......................................................................................... 85

Other Operations ................................................................................................... 85

Instruction Set Summary ............................................................................................. 85

Convention ............................................................................................................ 85

Chapter 3 Instruction Definition .................................................................................... 89

Chapter 4 Assembly Language and Cross Assembler .............................................. 101

Notational Conventions .............................................................................................. 101

Statement Syntax ...................................................................................................... 102

Name ................................................................................................................... 102

Operation ............................................................................................................ 102

Operand .............................................................................................................. 102

Comment ............................................................................................................. 103

Contents

iii

Assembly Directives .................................................................................................. 103

Conditional Assembly Directives ......................................................................... 103

File Control Directives ......................................................................................... 104

Program Directives .............................................................................................. 105

Data Definition Directives .................................................................................... 108

Macro Directives .................................................................................................. 110

Assembly Instructions ................................................................................................ 112

Name ................................................................................................................... 112

Mnemonic ............................................................................................................ 112

Operand, Operator and Expression ..................................................................... 112

Miscellaneous ........................................................................................................... 114

Forward References ............................................................................................ 114

Local Labels ........................................................................................................ 114

Reserved Assembly Language Words ................................................................ 115

Cross Assembler Options .......................................................................................... 116

Assembly Listing File Format ..................................................................................... 116

Source Program Listing ....................................................................................... 116

Summary of Assembly ......................................................................................... 117

Miscellaneous ...................................................................................................... 117

Part III Development Tools ................................................................... 119

Chapter 5 MCU Programming Tools ............................................................................ 121

HT-IDE Development Environment ............................................................................ 121

Holtek In-Circuit Emulator -HT-ICE .......................................................................... 122

HT-ICE Interface Card ......................................................................................... 122

OTP Programmer................................................................................................. 123

OTP Adapter Card .............................................................................................. 123

System Configuration ................................................................................................ 123

HT-ICE Interface Card Settings.............................................................................124

Installation .................................................................................................................. 125

System Requirement ........................................................................................... 125

Hardware Installation .......................................................................................... 125

Software Installation ............................................................................................ 125

Chapter 6 Quick Start ................................................................................................... 129

Step 1 -Create a New Project ............................................................................ 129

Step 2 -Add Source Program Files to the Project ............................................. 129

Step 3 -Build the Project .................................................................................... 129

Step 4 -Programming the OTP Device .............................................................. 129

Step 5 -Transmit Code to Holtek ....................................................................... 130

A/D Type MCU

Appendix ................................................................................................. 131

Appendix A Device Characteristic Graphics .............................................................. 133

Appendix B Package Information ................................................................................ 143

Contents

A/D Type MCU

Preface

Since the founding of the company, Holtek Semiconductor Inc. has concentrated much of its de-

sign efforts in the area of microcontroller development. Although supplying a wide range of semi-

conductor devices, the microcontroller category has always been a key product category within

the Holtek range, and one which will continue to expand as their devices increase in functionality

and maturity. By capitalizing on the substantial accumulated skills within its dedicated

microcontroller development department, Holtek has been able to release a comprehensive

range of high quality low-cost microcontroller devices for a wide range of application areas. Many

important applications need to process analog signals such as those which interface to external

sensors. All of these applications require analog to digital signal conversion by an A/D converter

before they can be processed by the microcontroller. To address these needs, Holtek has devel-

oped its range of A/D microcontrollers, which in addition to having all the features and functions of

the I/O range of devices, also include integrated multi-channel A/D converters of varying resolu-

tion and channel capacity. The inclusion of PWM functions and an I2C interface further enhance

the features and application possibilities of the A/D series of microcontrollers.

This handbook is divided into three parts for user convenience. Most details regarding general

datasheet information and device specification is located within Part I. Information related to

microcontroller programming such as device instruction set, instruction definition, and assembly

language directives is found within Part II. Part III relates to the Holtek range of Development Tools

where information can be found on their installation and use.

By compiling all relevant data together in one handbook, we hope users of the Holtek range of A/D

Type microcontroller devices will have at their fingertips a useful, complete and simple means to ef-

ficiently implement their microcontroller applications. Holtek¢s efforts to combine information on de-

vice specifications, programming and development tools into one publication have produced a

handbook which with careful use by the user should result in trouble free designs and the maxi-

mum benefit being gained from the many features of Holtek microcontroller devices. We welcome

feedback and comments from our customers regarding further improvements.

Preface

vii

viii

A/D Type MCU

Part I

Microcontroller Profile

Part I Microcontroller Profile

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