參數(shù)資料
型號: MC9SA256BCFUR2
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 45/102頁
文件大?。?/td> 1050K
代理商: MC9SA256BCFUR2
MC9S12A256 Device Guide — V01.01
47
4.3.3 Unsecuring the Microcontroller
In order to unsecure the microcontroller, the internal FLASH and EEPROM must be erased. This can be
done through an external program in expanded mode.
Once the user has erased the FLASH and EEPROM, the part can be reset into special single chip mode.
This invokes a program that verifies the erasure of the internal FLASH and EEPROM. Once this program
completes, the user can erase and program the FLASH security bits to the unsecured state. This is generally
done through the BDM, but the user could also change to expanded mode (by writing the mode bits
through the BDM) and jumping to an external program (again through BDM commands). Note that if the
part goes through a reset before the security bits are reprogrammed to the unsecure state, the part will be
secured again.
4.4 Low Power Modes
Consult the respective Block User Guide for information on the module behavior in Stop, Pseudo Stop,
and Wait Mode.
相關PDF資料
PDF描述
MC9SA256BCPVR2 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP112
MC9SDJ128BCFUR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
MC9SDJ128BVPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9SDG128BMPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9SDB128BMPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
相關代理商/技術參數(shù)
參數(shù)描述
MC9SDG128BCPVR2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9SDG128BMFUR2 制造商:Motorola Inc 功能描述:
MC9SDG128BVFUR2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9SDG128ECPV 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9SDG128ECPVR2 制造商:Rochester Electronics LLC 功能描述:- Bulk