INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is a type of an internal register that is very useful in memory-to-memory transfers, where an external signal is not available to begin the DMA transfer.
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Command Register
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Cash Register
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Request Register
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Select Register
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Explanation:
Detailed explanation-1: -Load − The load instruction is used to transfer data from the memory to a processor register, which is usually an accumulator. Store − The store instruction transfers data from processor registers to memory.
Detailed explanation-2: -DMA sends read control signal to peripheral device and puts the destination address and read signal on address and control buses for memory. Data transfers from peripheral to memory directly. As each byte transferred, the destination address is incremented by 1.
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