MPC quiz

MPC quiz

University

5 Qs

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Assessment

Quiz

Computers

University

Hard

Created by

thyla shri

Used 3+ times

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

MOV A, #56H

MOV R1, #50H

MOV 50H, # 45H

XCHD A, @R1

What is the result at A, R1?

56H, 45H

45H, 50H

50H, 56H

45H, 56H

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

MOV 45, #4FH

MOV R0, 45H

INC R0

MOV @R0, #30H

What is the location value of R0 and the content at that place?

45H, 4F

50H, 30H

30H, 50H

50H, 45H

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the Address (SFR) for TCON, SCON, SBUF, PCON and PSW respectively?

88H, 98H, 99H, 87H, 0D0H

98H, 99H, 87H, 88H, 0D0H

0D0H, 87H, 88H, 99H, 98H

87H, 88H, 0D0H, 98H, 99H

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Why is the speed accessibility of external data memory slower than internal on-chip RAM?

Due to multiplexing of lower order byte of address-data bus

Due to multiplexing of higher order byte of address-data bus

Due to demultiplexing of lower order byte of address-data bus

Due to demultiplexing of higher order byte of address-data bus

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which general purpose register holds eight bit divisor and store the remainder especially after the execution of division operation?

Register

B-Register

Registers R0 through R7

All of the above