4501_M Datasheet, PDF (5/212 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4501 Group
Table of contents
Table of contents
CHAPTER 1 HARDWARE
DESCRIPTION ................................................................................................................................ 1-2
FEATURES ...................................................................................................................................... 1-2
APPLICATION ................................................................................................................................ 1-2
PIN CONFIGURATION .................................................................................................................. 1-3
BLOCK DIAGRAM ......................................................................................................................... 1-4
PERFORMANCE OVERVIEW ....................................................................................................... 1-5
PIN DESCRIPTION ........................................................................................................................ 1-6
MULTIFUNCTION ..................................................................................................................... 1-6
PORT FUNCTION .................................................................................................................... 1-7
DEFINITION OF CLOCK AND CYCLE ................................................................................. 1-7
CONNECTIONS OF UNUSED PINS ..................................................................................... 1-8
PORT BLOCK DIAGRAMS ..................................................................................................... 1-9
FUNCTION BLOCK OPERATIONS ........................................................................................... 1-14
CPU .......................................................................................................................................... 1-14
PROGRAM MEMOY (ROM) .................................................................................................. 1-17
DATA MEMORY (RAM) ......................................................................................................... 1-18
INTERRUPT FUNCTION ....................................................................................................... 1-19
EXTERNAL INTERRUPTS .................................................................................................... 1-23
TIMERS ................................................................................................................................... 1-26
WATCHDOG TIMER .............................................................................................................. 1-31
A/D CONVERTER .................................................................................................................. 1-33
RESET FUNCTION ................................................................................................................ 1-38
VOLTAGE DROP DETECTION CIRCUIT ........................................................................... 1-41
RAM BACK-UP MODE .......................................................................................................... 1-42
CLOCK CONTROL ................................................................................................................. 1-47
ROM ORDERING METHOD ....................................................................................................... 1-49
LIST OF PRECAUTIONS ............................................................................................................ 1-50
CONTROL REGISTERS .............................................................................................................. 1-53
INSTRUCTIONS ............................................................................................................................ 1-57
SYMBOL .................................................................................................................................. 1-57
INDEX LIST OF INSTRUCTION FUNCTION ..................................................................... 1-58
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) ....................................................... 1-62
MACHINE INSTRUCTIONS (INDEX BY TYPES) .............................................................. 1-90
INSTRUCTION CODE TABLE ............................................................................................ 1-102
BUILT-IN PROM VERSION ...................................................................................................... 1-104
Rev.2.01 Feb 07, 2005
i
REJ09B0192-0201