AT89C5131A-RDTUM datasheet(185/188 Pages) ATMEL

185 / 188 page

4337K–USB–04/08

AT89C5130A/31A-M

10.3

Programming ...................................................................................................43

10.4

Read Data .......................................................................................................43

10.5

Registers .........................................................................................................44

In-System Programming (ISP) .............................................................. 45

11.1

Flash Programming and Erasure .....................................................................45

11.2

Boot Process ...................................................................................................46

11.3

Application-Programming-Interface .................................................................47

11.4

XROW Bytes ...................................................................................................47

11.5

Hardware Conditions .......................................................................................48

On-chip Expanded RAM (ERAM) .......................................................... 50

Timer 2 .................................................................................................... 53

13.1

Auto-reload Mode ............................................................................................53

13.2

Programmable Clock Output ...........................................................................54

Programmable Counter Array (PCA) .................................................... 58

14.1

PCA Capture Mode .........................................................................................65

14.2

16-bit Software Timer/Compare Mode ............................................................65

14.3

High Speed Output Mode ................................................................................66

14.4

Pulse Width Modulator Mode ..........................................................................67

14.5

PCA Watchdog Timer ......................................................................................68

Serial I/O Port ......................................................................................... 69

15.1

Framing Error Detection ..................................................................................69

15.2

Automatic Address Recognition ......................................................................70

15.3

Baud Rate Selection for UART for Mode 1 and 3 ............................................72

15.4

UART Registers ...............................................................................................75

Interrupt System ..................................................................................... 79

16.1

Overview ..........................................................................................................79

16.2

Registers .........................................................................................................80

16.3

Interrupt Sources and Vector Addresses .........................................................87

Keyboard Interface ................................................................................. 88

17.1

Introduction ......................................................................................................88

17.2

Description .......................................................................................................88

17.3

Registers .........................................................................................................89

Programmable LED ................................................................................ 92

AT89C5131A-RDTUM Datasheet(PDF) 185 Page - ATMEL Corporation

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