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MC908QC8CDTE

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MC908QC8CDTE 数据手册

Addendum to MC68HC908QC16, rev. 5

This addendum introduces a change to this data sheet.

Chapter 18 Development Support, Section 18.3.2 Security

A security feature discourages unauthorized reading of FLASH locations while in monitor mode. The host

can bypass the security feature at monitor mode entry by sending eight security bytes that match the

bytes at locations $FFF6–$FFFD. Locations $FFF6–$FFFD contain user-defined data.

NOTE

Do not leave locations $FFF6–$FFFD blank. For security reasons, program

locations $FFF6–$FFFD even if they are not used for vectors.

Changes to:

Chapter 18 Development Support, Section 18.3.2 Security

A security feature discourages unauthorized reading of FLASH locations while in monitor mode. The host

can bypass the security feature at monitor mode entry by sending eight security bytes that match the

bytes at locations $FFF6–$FFFD. Locations $FFF6–$FFFD contain user-defined data.

NOTE

Do not leave locations $FFF6–$FFFD blank. For security reasons, program

locations $FFF6–$FFFD even if they are not used for vectors. An improved

security function denies monitor mode entry if five or more of the eight

security bytes are $00 (zero bytes).

MC68HC908QC16 Data Sheet, Addendum 5/2012

Freescale Semiconductor

12 3 4 5 6 7...275

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型号	品牌	获取价格	描述	数据表
MC908QC8CDTER	FREESCALE	获取价格	Microcontrollers
MC908QC8CDXE	NXP	获取价格	8BIT MCU 8K FLASH PB FREE
MC908QC8CDXE	FREESCALE	获取价格	Microcontrollers
MC908QC8CDXER	FREESCALE	获取价格	Microcontrollers
MC908QC8CDYE	FREESCALE	获取价格	Microcontrollers
MC908QC8CDYE	NXP	获取价格	8-BIT, FLASH, 8MHz, MICROCONTROLLER, PDSO20, 1.27 MM PITCH, LEAD FREE, MS-013AC, SOIC-20
MC908QC8CDYER	FREESCALE	获取价格	Microcontrollers
MC908QC8CDZE	FREESCALE	获取价格	Microcontrollers
MC908QC8CDZE	NXP	获取价格	8BIT MCU 8K FLASH
MC908QC8CDZER	FREESCALE	获取价格	Microcontrollers