
Hardware
S1C62440/624A0/624C0/62480 TECHNICAL HARDWARE
EPSON
I-i
CONTENTS
CONTENTS
CHAPTER 1
INTRODUCTION ............................................................... I-1
1.1
Features ......................................................................... I-2
1.2
Block Diagram ................................................................ I-3
1.3
Pin Layout Diagram ........................................................ I-7
1.4
Pin Description .............................................................. I-10
CHAPTER 2
CPU AND BUILT-IN MEMORY ......................................... I-11
2.1
CPU and Instruction Set ................................................ I-11
2.2
Program Memory (ROM) ............................................... I-17
2.3
Data Memory (RAM)...................................................... I-20
CHAPTER 3
POWER SOURCE ............................................................. I-29
3.1
Power Supply System ................................................... I-29
3.2
SVD (Supply Voltage Detection) Circuit ........................ I-30
Configuration of SVD circuit .................................... I-30
Control of SVD circuit ............................................. I-31
Programming notes ................................................. I-32
3.3
Heavy Load Protection Mode ........................................ I-33
Control of heavy load protection mode ..................... I-34
Programming notes ................................................. I-34
3.4
CPU Operating Voltage Change ................................... I-35
CHAPTER 4
WATCHDOG TIMER AND INITIAL RESET ......................... I-36
4.1
Watchdog Timer ............................................................ I-36
Configuration of watchdog timer .............................. I-36
Control of watchdog timer ....................................... I-37
Programming notes ................................................. I-37