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参数资料
| 型号： | STM8AF6126TBY |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP32 |
| 封装： | 7 X 7 MM, ROHS COMPLIANT, LQFP-32 |
| 文件页数： | 7/99页 |
| 文件大小： | 881K |
| 代理商： | STM8AF6126TBY |
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STM8AF61xx, STM8AF62xx
Product overview
Doc ID 14952 Rev 4
5.4.2
Write protection (WP)
Write protection in application mode is intended to avoid unintentional overwriting of the
memory. The write protection can be removed temporarily by executing a specific sequence
in the user software.
5.4.3
Protection of user boot code (UBC)
If the user chooses to update the program memory using a specific boot code to perform in
application programming (IAP), this boot code needs to be protected against unwanted
modification.
In the STM8A a memory area of up to 32 Kbytes can be protected from overwriting at user
option level. Other than the standard write protection, the UBC protection can exclusively be
modified via the debug interface, the user software cannot modify the UBC protection status.
The UBC memory area contains the reset and interrupt vectors and its size can be adjusted
in increments of 512 bytes by programming the UBC and NUBC option bytes
Figure 2.
Flash memory organization of STM8A products
5.4.4
Read-out protection (ROP)
The STM8A provides a read-out protection of the code and data memory which can be
activated by an option byte setting (see the ROP option byte in section 10).
The read-out protection prevents reading and writing program memory, data memory and
option bytes via the debug module and SWIM interface. This protection is active in all device
operation modes. Any attempt to remove the protection by overwriting the ROP option byte
triggers a global erase of the program and data memory.
The ROP circuit may provide a temporary access for debugging or failure analysis. The
temporary read access is protected by a user defined, 8-byte keyword stored in the option
Programmable area
Data
UBC area
Program memory area
Data memory area (1 Kbytes)
EEPROM
Remains write protected during IAP
memory
Write access possible for IAP
Option bytes
Flash
program
memory
maximum 32 Kbytes
相关PDF资料 |
PDF描述 |
|---|---|
| STM8AF6126TCU | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP32 |
| STM8AF6146TAX | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP32 |
| STM8AF6146TBY | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP32 |
| STM8AF6146TCY | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP32 |
| STM8AF6148TAX | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| STM8AF6146 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Automotive 8-bit MCU, with up to 32 Kbytes Flash, data EEPROM, 10-bit ADC, timers, LIN, SPI, I2C, 3 to 5.5 V |
| STM8AF6146TCY | 制造商:STMicroelectronics 功能描述: |
| STM8AF6148 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Automotive 8-bit MCU, with up to 32 Kbytes Flash, data EEPROM, 10-bit ADC, timers, LIN, SPI, I2C, 3 to 5.5 V |
| STM8AF6166 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Automotive 8-bit MCU, with up to 32 Kbytes Flash, data EEPROM, 10-bit ADC, timers, LIN, SPI, I2C, 3 to 5.5 V |
| STM8AF6166TAY | 制造商:STMicroelectronics 功能描述:AUTOMOTIVE 8-BIT MCU, WITH UP TO 32 KBYTES FLASH, EEPROM - Trays |
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