INTRODUCTION TO MICROPEOCESSOR
MICROPROCESSOR BASICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cycle-stealing
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burst mode
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interleaved mode
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none
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Detailed explanation-1: -Burst Mode − In burst mode, a whole block of data is shared in one contiguous sequence. Since the DMA controller is allowed access to the system buses by the CPU, it sends all bytes of data in the data block earlier yield control of the system buses back to the CPU.
Detailed explanation-2: -Burst mode is a generic electronics term referring to any situation in which a device is transmitting data repeatedly without going through all the steps required to transmit each piece of data in a separate transaction.
Detailed explanation-3: -Ans is 25% CPU time is consumed in Cycle Steal Mode .
Detailed explanation-4: -1) Burst or block transfer DMA It is the fastest DMA mode. In this two or more data bytes are transferred continuously. Processor is disconnected from system bus during DMA transfer.