AT89C51CC03U-RDTIM datasheet(191/195 Pages) ATMEL

191 / 195 page

4182I–CAN–06/05

AT89C51CC03

Table of Contents

Features ................................................................................................. 1

Description ............................................................................................ 2

Block Diagram ...................................................................................... 2

Pin Configuration ................................................................................. 3

CA-BGA64 Top View ............................................................................................5

I/O Configurations................................................................................................. 8

Port 1, Port 3 and Port 4 ....................................................................................... 8

Port 0 and Port 2................................................................................................... 9

Read-Modify-Write Instructions .......................................................................... 10

Quasi-Bidirectional Port Operation ..................................................................... 11

SFR Mapping ....................................................................................... 12

Clock .................................................................................................... 18

Description.......................................................................................................... 18

Registers............................................................................................................. 21

Data Memory ....................................................................................... 23

Internal Space..................................................................................................... 24

External Space ................................................................................................... 25

Dual Data Pointer ............................................................................................... 27

Registers............................................................................................................. 28

Power Monitor ..................................................................................... 30

Description.......................................................................................................... 30

Reset .................................................................................................... 32

Introduction ......................................................................................................... 32

Reset Input ......................................................................................................... 32

Reset Output .......................................................................................................33

Power Management ............................................................................ 34

Introduction ......................................................................................................... 34

Idle Mode ............................................................................................................ 34

Power-Down Mode ............................................................................................. 34

Registers............................................................................................................. 37

EEPROM Data Memory ...................................................................... 38

Write Data in the Column Latches ...................................................................... 38

Programming ...................................................................................................... 38

Read Data........................................................................................................... 38

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