MICROPROCESSOR AND MICROCONTROLLER

INTRODUCTION TO MICROPEOCESSOR

MICROPROCESSOR BASICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
For the following subtract instruction, find the sequence of operationsA:Read data from memoryB:Fetch instruction from memoryC:DecodeD:Read RegistersE:Write data to memoryF:Write RegisterG:Execute
A
ACGE
B
BCAGE
C
BCDGF
D
ABDCGF
Explanation: 

Detailed explanation-1: -The correct answer is Fetch instruction, Decode instruction, Read operands, Execute instruction and Store data.

Detailed explanation-2: -Fetch instruction from memory. Decode the instruction. Read the effective address from memory. Execute the instruction.

Detailed explanation-3: -CPU transfers the address of the required information to MAR from where it is transferred through Address Bus to Memory. In the same time CPU uses it’s control lines of memory bus to indicate that a read operation is required. More items

Detailed explanation-4: -Five-stage pipeline. (non-accumulator. based-processor) Fetch the instruction. Decode the instruction and get the source operand. Get the destination operand. Perform the operation. Store the result.

There is 1 question to complete.