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MC68HC908QC16_12

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MC68HC908QC16_12 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
MC68HC908QC4	FREESCALE	获取价格	Microcontrollers
MC68HC908QC8	FREESCALE	获取价格	Microcontrollers
MC68HC908QF4	FREESCALE	获取价格	M68HC08 Microcontrollers
MC68HC908QL2	MOTOROLA	获取价格	Microcontrollers
MC68HC908QL2CP	NXP	获取价格	8-BIT, FLASH, 4MHz, MICROCONTROLLER, PDIP16, PLASTIC DIP-16
MC68HC908QL2MDT	NXP	获取价格	8-BIT, FLASH, 2MHz, MICROCONTROLLER, PDSO16, TSSOP-16
MC68HC908QL2MDW	NXP	获取价格	8-BIT, FLASH, 2MHz, MICROCONTROLLER, PDSO16, SOIC-16
MC68HC908QL2MP	NXP	获取价格	IC,MICROCONTROLLER,8-BIT,68HC08 CPU,CMOS,DIP,16PIN,PLASTIC
MC68HC908QL2VDT	MOTOROLA	获取价格	暂无描述
MC68HC908QL2VDW	MOTOROLA	获取价格	Microcontroller, 8-Bit, FLASH, 68HC08 CPU, 2MHz, CMOS, PDSO16, SOIC-16