When the processor wants to read (write) the contents of a memory location or register within a particular peripheral, it sets the address bus pins appropriately and receives (transmits) the contents on the data bus.
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释义
当一个处理器想去写(读)某一特定外设中的存储器地址或寄存器中的内容时,处理器设置地址总线并在数据总线上接收(传输)内容。
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