Welcome to the Microcontroller MCQs Page

Dive deep into the fascinating world of Microcontroller with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Microcontroller, a crucial aspect of Computer Architecture. In this section, you will encounter a diverse range of MCQs that cover various aspects of Microcontroller, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Computer Architecture.

Check out the MCQs below to embark on an enriching journey through Microcontroller. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Computer Architecture.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Microcontroller. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Microcontroller MCQs | Page 11 of 36

Explore more Topics under Computer Architecture

01

Computer Architecture Basics

02

Digital Logic Circuits

03

Digital Components

04

Digital Data Representation

05

Microoperations

06

Basic Computer Organization

07

Pipeline and Vector Processing

08

Computer Arithmetic

09

Input Output Organization

10

Memory Organization

11

Multiprocessors

12

8085 Microprocessor

13

8051 Microcontroller

Q101.

To latch in information at the data pins of the LCD, we send

H-L pulse at the E pin

L-H pulse at the E pin

A constant H pulse at the E pin

A constant L pulse at the E pin

Discuss

Answer: (a).H-L pulse at the E pin

Q102.

What is the function of the 0x06 command?

to clear the LCD

to blink the cursor

to shift the cursor to the right

for selecting the matrix

Discuss

Answer: (c).to shift the cursor to the right

Q103.

What is the address of the second column and the second row of the 2*20 LCD?

0x80

0x81

0xc0

0xc1

Discuss

Answer: (d).0xc1

Q104.

Which of the following commands takes more than 100 microseconds to run?

shift cursor left

shift cursor right

set address location of the DDRAM

clear screen

Discuss

Answer: (d).clear screen

Q105.

For selecting the data pins in a LCD, RS pin should be

Discuss

Answer: (a).1

Q106.

In reading the columns of a keyboard matrix, when no key is pressed then all the pins show

Discuss

Answer: (b).1

Q107.

To see if any key is pressed, all rows are grounded.

true

false

can’t be said

depends on the conditions

Discuss

Answer: (a).true

Q108.

Identify the row and the column for the following case when for the row D3-D0= 1110 and for the column D3-D0= 1101

first row and second column

first row and third column

second row and first column

second row and second column

Discuss

Answer: (a).first row and second column

Q109.

What are the actual steps that are followed in identifying any key that is being pressed?

wait for the debounce time

identify the key that is pressed

initially no key should be pressed

all of the mentioned

Discuss

Answer: (d).all of the mentioned

Q110.

To identify that the key is present in which row and the column

we ground the bits of the row one by one

we ground the bits of the column one by one

we connect the bits of the row to the logic level 1 one by one

we can connect the columns to the logic level 1 one by one

Discuss

Answer: (a).we ground the bits of the row one by one

Page 11 of 36

Welcome to the Microcontroller MCQs Page

Microcontroller MCQs | Page 11 of 36

Explore more Topics under Computer Architecture

Computer Architecture Basics

Digital Logic Circuits

Digital Components

Digital Data Representation

Microoperations

Basic Computer Organization

Pipeline and Vector Processing

Computer Arithmetic

Input Output Organization

Memory Organization

Multiprocessors

8085 Microprocessor

8051 Microcontroller

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