When Bus Grant (BG) = 1 in direct memory access (DMA) transfer, then what…
2021
When Bus Grant (BG) = 1 in direct memory access (DMA) transfer, then what function read line and write lines perform?
Answer: D. Read line and write line act as output lines from DMA controller — Read line and write line act as output lines from DMA controller
- A.
Read line and write line act as input line allowing CPU to communicate with internal DMA register
- B.
Read line act as input line and write line act as output line from DMA
- C.
Read line act as output line and write line act as input line from DMA controller
- D.
Read line and write line act as output lines from DMA controller
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Correct answer: D
Read line and write line act as output lines from DMA controller
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