When the R/W bit of the status register of the DMA controller is set to 1.

Related MCQs

• Can a single DMA controller perform operations on two different disks simultaneously?
• The technique whereby the DMA controller steals the access cycles of the processor to operate is called
• The IA-32 processor can switch between 16 bit operation and 32 bit operation with the help of instruction prefix bit.
• The added output of the bits of the interrupt register and the mask register is set as an input of                               
• The DMA differs from the interrupt mode by                       
• The DMA transfers are performed by a control circuit called as                       
• In DMA transfers, the required signals and addresses are given by the
• After the completion of the DMA transfer, the processor is notified by
• When the process requests for a DMA transfer?
• The DMA transfer is initiated by