wht is ment by DMA controller?

would you please describe breifly alond with block diagram and parts associated with it.

90 Views|Posted 2011-05-07 12:44:46

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Suryap2012 | Guide-Level 11

2011-05-07 12:46:34

In DMA as the name suggest the memory can be accessed directly by i/o module. Thus overcome the drawback of programmed i/o and interrupt driven i/o where the CPU is responsible for extracting data from the memory for output & storing data in memory for input. DMA provids different information. i) wh