T89C51AC2-RLSI-M datasheet(42/117 Pages) ATMEL

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T89C51AC2-RLSI-M データシート(PDF) 42 Page - ATMEL Corporation

部品番号	T89C51AC2-RLSI-M

部品情報	8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM

PDF	117 Pages

Scroll/Zoom	100%

メーカー	ATMEL [ATMEL Corporation]

ホームページ	http://www.atmel.com

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42 / 117 page

Draft.A - March 30, 2001

Preview - Confidential

T89C51AC2

10.2. Flash Programming and Erasure

There are three methods of programming the Flash memory:

• The Atmel bootloader located in FM1 is activated by the application. Low level API routines (located in FM1)

to program FM0 will be used. The interface used for serial downloading to FM0 is the UART. API can be

called also by user’s bootloader located in FM0 at [SBV]00h.

• A further method exist in activating the Atmel boot loader by hardware activation.

• The FM0 can be programed also by the parallel mode using a programmer.

Figure 27. Flash Memory Mapping

F800h

7FFFh

32 Kbytes

Flash memory

2 Kbytes IAP

bootloader

FM0

FM1

Custom

Boot Loader

[SBV]00h

FFFFh

FM1 mapped between FFFF and F800

when API called

0000h

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