Multiple choice

How does DMA module communicate with CPU?

  1. By intrerrupts

  2. By priority set

  3. By cycle stealing

  4. All of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cycle stealing is a stategy whereby DMA module uses the system bus to move data between the I/O module/exeternal devices at times, when the CPU is not using the bus.