st92f124 STMicroelectronics, st92f124 Datasheet - Page 49
st92f124
Manufacturer Part Number
st92f124
Description
8/16-bit Single Voltage Flash Mcu Family With Ram, E3 Tmemulated Eeprom, Can 2.0b And J1850 Blpd
Manufacturer
STMicroelectronics
Datasheet
1.ST92F124.pdf
(426 pages)
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3 SINGLE VOLTAGE FLASH & E
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-
Figure 30. Flash Memory Structure (Example for 64K Flash device)
22CFFFh
231F80h
000000h
002000h
004000h
2203FFh
230000h
228000h
220000h
010000h
ST92F124/F150/F250 - SINGLE VOLTAGE FLASH & E3 TM (EMULATED EEPROM)
Hardware emulated EEPROM sectors
User OTP and Protection registers
Emulated EEPROM
sense amplifiers
sense amplifiers
Sector F0
Sector F1
48 Kbytes
TestFlash
Sector F2
8 Kbytes
8 Kbytes (Reserved)
1 Kbyte
8 Kbytes
8 Kbytes
3 TM
(EMULATED EEPROM)
ond part contains the two dedicated Flash sectors
used for EEPROM Hardware Emulation.
The write operations of the two parts are managed
by an embedded Program/Erase Controller.
Through a dedicated RAM buffer the Flash and the
E
3 TM
can be written in blocks of 16 bytes.
Address
Program / Erase
RAM buffer
16 bytes
Interface
Controller
Register
Data
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