MICROPROCESSOR AND MICROCONTROLLER

INTRODUCTION TO MICROPEOCESSOR

MODEL OF MICROPROCESSOR

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is true about Control and status signals?
A
These signals are used to identify the nature of operation.
B
There are 3 control signal and 3 status signals.
C
Three status signals are IO/M, S0 & S1.
D
All of the above
Explanation: 

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.

There is 1 question to complete.