To complete a DMA transfer, a memory to memory transfer requires
A. a read from memory cycle
B. a write to memory cycle
C. a read-from and write-to memory cycle
D. none of the mentioned
Answer:A
To complete a DMA transfer, a memory to memory transfer requires
A. a read from memory cycle B. a write to memory cycle C. a read-from and write-to memory cycle D. none of the mentioned
Explanation: A memory to memory transfer is a two cycle operation, and requires a read from and write-to memory cycle, to complete each DMA transfer.