#csapp
This process, whereby a device performs a read or write bus transaction on its own, without any involvement of the CPU, is known as direct memory access (DMA). The transfer of data is known as a DMA transfer.
设备可以自己执行读或写的总线事务而不需要CPU干涉的过程,称为直接内存访问。这种数据传送称为DMA传送
展开
评论