MICROPROCESSOR AND MICROCONTROLLER

ICT

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where does the control unit look in order to find the address of the next instruction to be fetched?
A
Memory Address Register (MAR)
B
Instruction Register (IR)
C
Memory Buffer Register (MBR)
D
Accumulator(ACC)
Explanation: 

Detailed explanation-1: -The program to be executed is stored in main memory, as a sequence of instructions. One register within the central processor, today called the program counter, holds the address of the next instruction to be executed from the program.

Detailed explanation-2: -The program counter, PC, is a special-purpose register that is used by the processor to hold the address of the next instruction to be executed.

There is 1 question to complete.