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935324461518 PDF预览

935324461518

更新时间: 2024-09-21 20:55:39
品牌 Logo 应用领域
恩智浦 - NXP 微控制器外围集成电路
页数 文件大小 规格书
275页 3926K
描述
Microcontroller

935324461518 技术参数

生命周期:Not RecommendedReach Compliance Code:unknown
风险等级:5.76uPs/uCs/外围集成电路类型:MICROCONTROLLER
Base Number Matches:1

935324461518 数据手册

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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  
1

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