INTRODUCTION TO MICROPEOCESSOR
MODEL OF MICROPROCESSOR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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These signals are used to identify the nature of operation.
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There are 3 control signal and 3 status signals.
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Three status signals are IO/M, S0 & S1.
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All of the above
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Detailed explanation-1: -There are 3 control signal and 3 status signals. C. Three status signals are IO/M, S0 & S1. Explanation: All of the above are correct about Control and status signals.
Detailed explanation-2: -Control and status signals These signals are used to identify the nature of operation. There are 3 control signal and 3 status signals. Three control signals are RD, WR & ALE. RD − This signal indicates that the selected IO or memory device is to be read and is ready for accepting data available on the data bus.
Detailed explanation-3: -Which is of the following is true about STA instruction? Explanation: STA is a direct addressing mode instruction which stands for Store Accumulator Direct. It is a 3-byte instruction and it requires four machine cycles. In STA instruction memory is loaded with the content of the accumulator.
Detailed explanation-4: -What is true about microprocessor? C. It also communicate with the other devices connected to it. Explanation: Microprocessor is a controlling unit of a micro-computer, fabricated on a small chip capable of performing ALU (Arithmetic Logical Unit) operations and communicating with the other devices connected to it.