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Cortex-A53 / Cortex-A57的地址线数目

chinatiger

hi, experts:

根据CA57 TRM：

它的地址线数目：

Aarch64 state : 44根

Aarch32 state : 40根

Aarch32 state比Aarch64少用了4根：那么这4根地址线，在Aarch32下，用作什么signal pin?实现相关吗？

best wishes,