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 10 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

Q91.

The USART in AVR based micro controllers operate at which of the following modes?

double speed asynchronous mode

master synchronous

slave synchronous

all of the mentioned

Discuss

Answer: (d).all of the mentioned

Q92.

Which bit of the UCSRA is used for doubling the baud rate of the transmission?

DOR

U2X

MPCM

Discuss

Answer: (c).U2X

Q93.

What is the use of the PE and the FE bits of the UCSRA register?

they are used for keeping a check at the speed of transmission and reception

they are used for keeping a check at the data bits to be transferred

they are used to keep the transmission error free

they are used as extra redundant bits with no use

Discuss

Answer: (c).they are used to keep the transmission error free

Q94.

Which of the following bits are used for setting the data frame size?

UCSZ0

U2X

DOR

MPCM

Discuss

Answer: (a).UCSZ0

Q95.

Which of the following parameters should the transmitter and the receiver agree upon before starting a serial transmission?

baud rate

frame size

stop bit

all of the mentioned

Discuss

Answer: (d).all of the mentioned

Q96.

In AVR, the LCD operates in two main modes, it can be in 8 bit or 4 bit data.

true

false

depends on the situation

can’t be said

Discuss

Answer: (a).true

Q97.

What can be the sequence of commands that may be used for initializing an LCD?

0x06, 0x0e, 0x01

0x0e, 0x01, 0x80

0x38, 0x0e, 0x01

all of the mentioned

Discuss

Answer: (c).0x38, 0x0e, 0x01

Q98.

When the LCD operates in the 4 bit mode, then what more commands are added to it?

all of the mentioned

Discuss

Answer: (d).all of the mentioned

Q99.

What is the main function of the LPM instruction used in LCD?

for initializing the LCD in the read mode

for initializing the LCD in the write mode

for sending a long string of characters to the LCD

all of the mentioned

Discuss

Answer: (c).for sending a long string of characters to the LCD

Q100.

The RS pin acts as an

input pin

output pin

any of the mentioned depending on the conditions

none of the mentioned

Discuss

Answer: (a).input pin

Page 10 of 36

Welcome to the Microcontroller MCQs Page

Microcontroller MCQs | Page 10 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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