ST92F124 datasheet(49/426 Pages) STMICROELECTRONICS

部件名	ST92F124

功能描述	8/16-BIT SINGLE VOLTAGE FLASH MCU FAMILY WITH RAM, E3 TMEMULATED EEPROM, CAN 2.0B AND J1850 BLPD

PDF	426 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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ST92F124/F150/F250 - SINGLE VOLTAGE FLASH & E3 TM (EMULATED EEPROM)

3 SINGLE VOLTAGE FLASH & E3 TM (EMULATED EEPROM)

3.1 INTRODUCTION

The Flash circuitry contains one array divided in

two main parts that can each be read independ-

ently. The first part contains the main Flash array

for code storage, a reserved array (TestFlash) for

system routines and a 128-byte area available as

one time programmable memory (OTP). The sec-

ond part contains the two dedicated Flash sectors

used for EEPROM Hardware Emulation.

The write operations of the two parts are managed

embedded

Program/Erase

Controller.

Through a dedicated RAM buffer the Flash and the

E3 TM

can be written in blocks of 16 bytes.

Figure 30. Flash Memory Structure (Example for 64K Flash device)

230000h

004000h

002000h

000000h

Sector F1

8 Kbytes

Sector F0

8 Kbytes

TestFlash

8 Kbytes

Program / Erase

Controller

RAM buffer

16 bytes

Interface

Address

Data

231F80h

User OTP and Protection registers

Sector F2

48 Kbytes

sense amplifiers

22CFFFh

228000h

Hardware emulated EEPROM sectors

8 Kbytes (Reserved)

Emulated EEPROM

1 Kbyte

sense amplifiers

220000h

2203FFh

010000h

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