AT89C51RC2-3CSCM(2003) 查看數據表（PDF） - Atmel Corporation

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AT89C51RC2-3CSCM
(Rev.:2003)

8-bit Microcontroller with 16K/32K Bytes Flash

Atmel Corporation 

Table of Contents

Table of Contents

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

Description ............................................................................................ 1

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

SFR Mapping ......................................................................................... 3

Pin Configurations ................................................................................ 8

Oscillator ............................................................................................. 12

Registers ............................................................................................................ 12

Functional Block Diagram .................................................................................. 13

Enhanced Features ............................................................................. 14

X2 Feature.......................................................................................................... 14

Dual Data Pointer Register (DPTR) ................................................... 18

Expanded RAM (XRAM) ...................................................................... 21

Registers ............................................................................................................ 23

Timer 2 ................................................................................................. 24

Auto-reload Mode ............................................................................................... 24

Programmable Clock-out Mode.......................................................................... 25

Registers ............................................................................................................ 27

Programmable Counter Array (PCA) ................................................. 29

Registers ............................................................................................................ 31

PCA Capture Mode ............................................................................................ 37

16-bit Software Timer/ Compare Mode .............................................................. 38

High-speed Output Mode ................................................................................... 39

Pulse Width Modulator Mode ............................................................................. 40

PCA Watchdog Timer......................................................................................... 40

Serial I/O Port ...................................................................................... 42

Framing Error Detection ..................................................................................... 42

Automatic Address Recognition ......................................................................... 43

Registers ............................................................................................................ 45

Baud Rate Selection for UART for Mode 1 and 3 .............................................. 45

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