ST72321AR9-Auto STMicroelectronics, ST72321AR9-Auto Datasheet - Page 32

• Manufacturer Part Number: ST72321AR9-Auto
• Description: 8-bit MCU for automotive with 60 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
• Manufacturer: STMicroelectronics

Specifications of ST72321AR9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

Flash program memory
4.6
4.7
4.8
32/243
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 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.
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
Flash control/status register (FCSR)
This register is reserved for use by programming tool software. It controls the Flash
programming and erasing operations.
Table 6.
FSCR
Address (Hex.)
RW
7
0
0029h
Flash control/status register address and reset value
RW
6
0
FCSR
Reset value
Register label
RW
5
0
Doc ID 13829 Rev 1
7
0
RW
4
0
6
0
RW
3
0
5
0
4
0
RW
2
0
Reset value: 0000 0000 (00h)
3
0
.
RW
2
0
1
0
ST72321xx-Auto
1
0
RW
0
0
0
0