在DSP 手册里讲到有的寄存器需要不同模式下访问,请问user mode 和supervision mode是什么意思?
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在DSP 手册里讲到有的寄存器需要不同模式下访问,请问user mode 和supervision mode是什么意思?
请看c6678 CPU user guide第9章节。
CPU Privilege
http://www.ti.com/lit/ug/sprugh7/sprugh7.pdf