参数资料
型号: ST72F321J9T5
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
封装: 10 X 10 MM, PLASTIC, TQFP-44
文件页数: 79/176页
文件大小: 1112K
代理商: ST72F321J9T5
ST72321J
17/176
FLASH PROGRAM MEMORY (Cont’d)
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, (us-
er-defined strategy for entering programming
mode, choice of communications protocol used to
fetch the data to be stored, etc.). For example, it is
possible to download code from the SPI, SCI, USB
or CAN 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 pro-
tected to allow recovery in case errors occur dur-
ing the programming operation.
4.6.1 Register Description
FLASH CONTROL/STATUS REGISTER (FCSR)
Read/Write
Reset Value: 0000 0000 (00h)
This register is reserved for use by Programming
Tool software. It controls the Flash programming
and erasing operations. For details on customizing
Flash programming methods and In-Circuit Test-
ing, refer to the ST7 Flash Programming Refer-
ence Manual.
Table 4. Flash Control/Status Register Address and Reset Value
70
000
00000
Address
(Hex.)
Register
Label
765
4
321
0
0029h
FCSR
Reset Value
0
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