MCQOPTIONS
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| 1. |
Cycle-stealing mode of DMA operation involves: |
| A. | DMA controller takes over the address, data and control buses while a block of data is transferred between memory and an I/O device |
| B. | While the μP is executing a program an interface circuit takes over control of the address, data and control buses when not in use by the μP |
| C. | Data transfer takes place between the I/O device and memory during every alternate clock cycle |
| D. | The DMA controller waits for the μP to finish execution of the program and then takes over the buses. |
| Answer» D. The DMA controller waits for the μP to finish execution of the program and then takes over the buses. | |