Maskinnær programmering -
A system featuring DMA can be programmed such that no CPU activity is nescessary during the data transfer to and from an I/O unit. This is used to improve energy efficiency by:
Turning off memory while DMA transfer is ongoing
Turning off CPU while DMA transfer is ongoing
Turning off IO unit while DMA transfer is ongoing
Turning IO unit on and off to handle situations that may arise during transmission.
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