4524_M Datasheet, PDF (5/310 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 720 FAMILY / 4500 SERIES

4524 Group
Table of contents
Table of contents
CHAPTER 1 HARDWARE
DESCRIPTION ................................................................................................................................... 2
FEATURES ......................................................................................................................................... 2
APPLICATION ................................................................................................................................... 2
PIN CONFIGURATION ..................................................................................................................... 3
BLOCK DIAGRAM ............................................................................................................................ 4
PERFORMANCE OVERVIEW .......................................................................................................... 5
PIN DESCRIPTION ........................................................................................................................... 6
MULTIFUNCTION ........................................................................................................................ 7
DEFINITION OF CLOCK AND CYCLE .................................................................................... 7
PORT FUNCTION ....................................................................................................................... 8
CONNECTIONS OF UNUSED PINS ........................................................................................ 9
PORT BLOCK DIAGRAMS ...................................................................................................... 10
FUNCTION BLOCK OPERATIONS .............................................................................................. 18
CPU ............................................................................................................................................. 18
PROGRAM MEMORY (ROM) .................................................................................................. 21
DATA MEMORY (RAM) ............................................................................................................ 22
INTERRUPT FUNCTION .......................................................................................................... 23
EXTERNAL INTERRUPTS ....................................................................................................... 27
TIMERS ...................................................................................................................................... 32
WATCHDOG TIMER ................................................................................................................. 45
A/D CONVERTER (COMPARATOR) ...................................................................................... 47
SERIAL I/O ................................................................................................................................. 53
LCD FUNCTION ........................................................................................................................ 57
RESET FUNCTION ................................................................................................................... 62
VOLTAGE DROP DETECTION CIRCUIT .............................................................................. 66
POWER DOWN FUNCTION .................................................................................................... 67
CLOCK CONTROL .................................................................................................................... 72
ROM ORDERING METHOD .......................................................................................................... 74
LIST OF PRECAUTIONS ............................................................................................................... 75
CONTROL REGISTERS ................................................................................................................. 79
INSTRUCTIONS ............................................................................................................................... 86
SYMBOL ..................................................................................................................................... 86
INDEX LIST OF INSTRUCTION FUNCTION ........................................................................ 87
MACHINE INSTRUCTIONS (INDEX BY ALPHABET) .......................................................... 92
MACHINE INSTRUCTIONS (INDEX BY TYPES) (CONTINUED) ..................................... 132
INSTRUCTION CODE TABLE ............................................................................................... 148
BUILT-IN PROM VERSION ......................................................................................................... 150
Rev.2.00 Aug, 06 2004
i
REJ09B0107-0200Z