Answer to Question #259657 in Electrical Engineering for SUNNY

Question #259657

Why are the read and write control lines in a DMA controller bidirectional? Under what



condition and for what purpose are they used as inputs? Under what condition and for what



purpose are they used as outputs?

1
Expert's answer
2021-11-01T08:52:42-0400

In the CPU and DMA controllers. The DMA controller and CPU controller "share" the write and read control lines. They must all be bidirectional. As a result, we can claim that the CPU controller and the DMA controller can both regulate (activate) these lines as necessary. On the other hand, we can state that. When a DMA controller sends a Bus request input (BR) to the CPU and takes control of the Buses, these control lines go via the data buses and include control signals.


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS