在TCI6630数据手册中看到如下的型号描述:
Blank: Security Accelerator disabled
X: Security Accelerator enabled/General Purpose device
S: Security Accelerator enabled/High Security device with production keys
这X,S二者是什么样的区别?production Keys是表示什么意思?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
在TCI6630数据手册中看到如下的型号描述:
Blank: Security Accelerator disabled
X: Security Accelerator enabled/General Purpose device
S: Security Accelerator enabled/High Security device with production keys
这X,S二者是什么样的区别?production Keys是表示什么意思?
X和S都是代表有安全加速器,不同点在于X没有security feature,而S可以支持security feature,安全特性主要在于:加入security boot特性,防止没有经过签名(signature)的非法image写入器件;防止器件中的代码被非法用户读取以达到保护知识产权的目的。
production key 就是在产品正式量产时,用来产生合法image的key
那二者型号的管脚是兼容的是吗? 量产的话,这个production key是每个芯片唯一的? 如何产生?