AT89C51AC3-RDTUM datasheet(58/143 Pages) ATMEL

Part #	AT89C51AC3-RDTUM

Description	Enhanced 8-bit Microcontroller with 64KB Flash Memory

PDF	143 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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58 / 143 page

AT89C51AC3

4383B–8051–01/05

Figure 30. Hardware Boot Process Algorithm

Application

Programming Interface

Several Application Program Interface (API) calls are available for use by an application

program to permit selective erasing and programming of Flash pages. All calls are made

by functions.

All these APIs are describe in an documentation: "In-System Programing: Flash Library

for AT89C51AC3" available on the Atmel web site.

XROW Bytes

Table 23. XROW Mapping

RESET

Hardware

condition?

BLJB = = 0

bit ENBOOT in AUXR1 register

is initialized with BLJB.

ENBOOT = 1

PC = F800h

ENBOOT = 1

PC = F800h

FCON = 00h

FCON = F0h

Boot Loader

in FM1

ENBOOT = 0

PC = 0000h

Yes

Application

in FM0

Description

Default Value

Address

Copy of the Manufacturer Code

58h

30h

Copy of the Device ID#1: Family code

D7h

31h

Copy of the Device ID#2: Memories size and type

FFh

60h

Copy of the Device ID#3: Name and Revision

FEh

61h

AT89C51AC3-RDTUM Datasheet(PDF) 58 Page - ATMEL Corporation

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