LQFP100 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

LQFP100

8/16-BIT SINGLE VOLTAGE FLASH MCU FAMILY WITH RAM, E³ ™ (EMULATED EEPROM), CAN 2.0B AND J1850 BLPD

STMicroelectronics 

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

Figure 38. Flash in-system Programming.

TestFlash Code

Internal RAM (User Code Example)

Start

Initialisation

No

SOUT0 Yes

=0?

Jump to Flash

Main

User

Code

Enable Serial

Interface

WFI

Address

Match

Interrupt

(from SCI)

Test

Flash

In-system

prog routine

Flash

No

virgin ?

Yes

Erase sectors

Load 1st table

of data in RAM

through S.I.

Code Update

Routine

Enable DMA

Load in-system

prog routine

in internal RAM

through SCI.

Call in-system

prog routine

Prog 1st table

of data from

RAM in Flash

Load 2nd table

of data in RAM

through SCI

Inc. Address

Last

No

Address ?

Yes

RET

HALT

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