ST72321BR9-AUTO View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72321BR9-AUTO

8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface

STMicroelectronics 

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ST72321Bxxx-Auto

Flash program memory

4.6

IAP (in-application programming)

This mode uses a BootLoader program previously stored in Sector 0 by the user (in ICP

mode or by plugging the device in a programming tool).

This mode is fully controlled by user software. This allows it to be adapted to the user

application, (such as user-defined strategy for entering programming mode, choice of

communications protocol used to fetch the data to be stored). For example, it is possible to

download code from the serial peripheral or serial communication interface and program it in

the Flash. IAP mode can be used to program any of the Flash sectors except Sector 0,

which is write/erase protected to allow recovery in case errors occur during the

programming operation.

4.7

Related documentation

For details on Flash programming and ICC protocol, refer to the ST7 Flash Programming

Reference Manual and to the ST7 ICC Protocol Reference Manual.

4.8

Flash control/status register (FCSR)

FSCR

Reset value: 0000 0000 (00h)

7

6

5

4

3

2

1

0

0

0

0

0

0

0

0

0

RW

RW

RW

RW

RW

RW

RW

RW

This register is reserved for use by programming tool software. It controls the Flash

programming and erasing operations.

Table 5. Flash control/status register address and reset value

Address (Hex.) Register label 7

6

5

4

3

2

1

0

0029h

FCSR

Reset value

0

0

0

0

0

0

0

0

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