AT89C5131-RDTIL datasheet(173/176 Pages) ATMEL

173 / 176 page

4136B–USB–09/03

Table of Contents

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

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

Block Diagram ....................................................................................... 3

Pinout Description ................................................................................ 4

Pinout.................................................................................................................... 4

Signals ................................................................................................................... 7

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

Clock Controller .................................................................................. 19

Introduction ......................................................................................................... 19

Oscillator............................................................................................................. 19

PLL ..................................................................................................................... 20

Registers.............................................................................................................. 22

Dual Data Pointer Register ................................................................ 24

Program/Code Memory ...................................................................... 26

External Code Memory Access .......................................................................... 26

Flash Memory Architecture................................................................................. 27

Overview of FM0 Operations .............................................................................. 28

Registers............................................................................................................. 34

Flash EEPROM Memory ..................................................................... 35

General Description ............................................................................................ 35

Features.............................................................................................................. 35

Flash Programming and Erasure........................................................................ 35

Flash Registers and Memory Map....................................................................... 36

Flash Memory Status.......................................................................................... 39

Memory Organization ......................................................................................... 39

EEPROM Data Memory ....................................................................... 40

Description.......................................................................................................... 40

Write Data in the Column Latches ...................................................................... 40

Programming ...................................................................................................... 40

Read Data........................................................................................................... 40

Registers.............................................................................................................. 41

In-System Programming (ISP) ........................................................... 42

Flash Programming and Erasure........................................................................ 42

Boot Process ...................................................................................................... 43

AT89C5131-RDTIL Folha de dados(PDF) 173 Page - ATMEL Corporation