Each controller on a bus can be individually addressed by the CPU, this is why the software device driver can write to its registers and thus control it.

 
  • 在總線(xiàn)上的每個(gè)控制器可以被CPU所單獨尋址,這是軟件設備驅動(dòng)程序能寫(xiě)入寄存器并能控制這些控制器的原因。
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