Microprogrammed Control Q.13

0. Which of the following statements are true when the control signals PCout, MARin, and READ are activated simultaneously?

  • Option : A
  • Explanation : Option A, C and D are correct.
    When the control signals PCout and MARin are activated, the contents of PC will get transferred via the internal processor bus to the MAR register. And since READ is also active, the address in MAR will be used to initiate a read operation to memory to fetch the next instruction.
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