Microcontroller

Microcontroller

University

15 Qs

quiz-placeholder

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Microcontroller

Microcontroller

Assessment

Quiz

Computers

University

Practice Problem

Hard

Created by

Sajeesh M

Used 104+ times

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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is internal RAM memory of 8051 microcontroller?

32 bytes

64 bytes

128 bytes

256 bytes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

8051 series has how many 16 bit registers?

2

1

3

0

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Register that is used to hold the memory address of the next instruction to be executed is----------------

Program Memory

Program Counter

Control Unit

Instruction Decoder

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which register is used to store the output generated by ALU?

Special Function Register

Timer Register

Accumulator

Stack Pointer

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When the microcontroller executes some arithmetic operations, then the flag bits of which register are affected?

PSW

SP

DPTR

PC

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What kind of instructions usually affect the program counter?

Push & Pop

Call & Jump

Call & Return

Return & Jump

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The 8051 microprocessor has ________ parallel I/O ports.

2

3

4

5

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