M34551E8-XXXFP_98 Просмотр технического описания (PDF) - MITSUBISHI ELECTRIC

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Компоненты Описание

производитель

M34551E8-XXXFP_98

4-BIT SINGLE-CHIP MICROCOMPUTER

MITSUBISHI ELECTRIC  

Table of contents

Table of contents

CHAPTER 1 HARDWARE

DESCRIPTION ................................................................................................................................ 1-3

FEATURES ...................................................................................................................................... 1-3

PIN CONFIGURATION (TOP VIEW) ........................................................................................... 1-3

APPLICATION ................................................................................................................................ 1-3

BLOCK DIAGRAM ......................................................................................................................... 1-4

PERFORMANCE OVERVIEW ....................................................................................................... 1-5

DEFINITION OF CLOCK AND CYCLE ....................................................................................... 1-5

PIN DESCRIPTION ........................................................................................................................ 1-6

MULTIFUNCTION ................................................................................................................... 1-7

CONNECTIONS OF UNUSED PINS ................................................................................... 1-7

PORT FUNCTION .................................................................................................................. 1-7

PORT BLOCK DIAGRAMS .................................................................................................. 1-8

FUNCTIONAL BLOCK OPERATIONS ...................................................................................... 1-10

CPU ........................................................................................................................................ 1-10

PROGRAM MEMORY (ROM) ............................................................................................. 1-13

DATA MEMORY (RAM) ...................................................................................................... 1-14

INTERRUPT FUNCTION ..................................................................................................... 1-15

EXTERNAL INTERRUPTS .................................................................................................. 1-18

TIMERS ................................................................................................................................. 1-20

WATCHDOG TIMER ............................................................................................................ 1-24

CARRIER GENERATING CIRCUIT ................................................................................... 1-25

LCD FUNCTION ................................................................................................................... 1-28

RESET FUNCTION .............................................................................................................. 1-32

VOLTAGE DROP DETECTION CIRCUIT ......................................................................... 1-34

POWER DOWN FUNCTION ............................................................................................... 1-35

CLOCK CONTROL .............................................................................................................. 1-38

ROM ORDERING METHOD ....................................................................................................... 1-39

LIST OF PRECAUTIONS ............................................................................................................ 1-40

SYMBOL ........................................................................................................................................ 1-41

LIST OF INSTRUCTION FUNCTION ........................................................................................ 1-42

INSTRUCTION CODE TABLE .................................................................................................... 1-44

MACHINE INSTRUCTIONS ........................................................................................................ 1-46

CONTROL REGISTERS .............................................................................................................. 1-60

BUILT-IN PROM VERSION ........................................................................................................ 1-64

PIN CONFIGURATION (TOP VIEW) ......................................................................................... 1-64

4551 Group User’s Manual

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