MICROPROCESSOR AND MICROCONTROLLER

8051 MICROCONTROLLER

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which memory allow the execution of instructions till the address limit of 0FFFH especially when the External Access (EA) pin is held high?
A
Internal Program Memory
B
External Program Memory
C
None of above
D
Both a & b
Explanation: 

Detailed explanation-1: -Internal Program Memory-Execution of instructions till the address limit of 0FFFH.

Detailed explanation-2: -The main job of the Program Counter(PC) register is to keep track of the instructions stored in a program stored in memory.

Detailed explanation-3: -In computing, the instruction register (IR) or current instruction register (CIR) is the part of a CPU’s control unit that holds the instruction currently being executed or decoded.

Detailed explanation-4: -Program memory is a non-volatile memory. All modern PIC® processors use a Flash memory technology that allows the program memory to be reprogrammed using a simple hardware interface. It is common to include some kind of programming connector on even a production product to allow for firmware updates if needed.

There is 1 question to complete.