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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.

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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 16 of 36

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Q151.
For a normal 4 step sequence, what are number of teeth required to accomplish a 2 degree step angle?

a.

180

b.

90

c.

360

d.

45

Discuss
Answer: (d).45
Q152.
Ounch-inch is a unit of a torque.

a.

true

b.

false

c.

can’t say

d.

depends on the situation

Discuss
Answer: (a).true
Q153.
Why do we make the connection of the SCLK for communicating serially between two devices?

a.

to get a clock output from the device

b.

to synchronize the two devices

c.

to obtain an analog output

d.

all of the mentioned

Discuss
Answer: (b).to synchronize the two devices
Q154.
What is the function of the CE pin in SPI?

a.

it is used for synchronization

b.

it is used as a transmitting pin

c.

it is used as a receiving pin

d.

it is used to initiate and terminate the data transfer

Discuss
Answer: (d).it is used to initiate and terminate the data transfer
Q155.
Which of the following is correct?

a.

MOSI has the same meaning as the SDO

b.

SCLK is used to initiate and terminate the data transfer

c.

In 3 wire SPI, their is only one pin for transmission and reception

d.

In 3 wire SPI, their are three pins MOSI, MISO and SCLK

Discuss
Answer: (c).In 3 wire SPI, their is only one pin for transmission and reception
Q156.
If CPHA= 0 and CPOL=1, then which of the following is true?

a.

read on rising edge, changed on a falling edge

b.

read on falling edge, changed on a rising edge

c.

write on rising edge, changed on a falling edge

d.

write on rising edge, changed on a falling edge

Discuss
Answer: (b).read on falling edge, changed on a rising edge
Q157.
In SPI write, LSB goes first?

a.

true

b.

false

c.

can’t be said

d.

depends on the cases

Discuss
Answer: (b).false
Q158.
In AVR, which of the following registers are used for SPI?

a.

SPSR

b.

SPCR

c.

SPDR

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q159.
How do we set the SPI, to operate in the master mode 1?

a.

We set the MSTR bit, and make the CPOL= 1 and CPHA=0

b.

We set the MSTR bit, and make the CPOL= 0 and CPHA=1

c.

We reset the MSTR bit, and make the CPOL= 1 and CPHA=0

d.

We reset the MSTR bit, and make the CPOL= 0 and CPHA=1

Discuss
Answer: (b).We set the MSTR bit, and make the CPOL= 0 and CPHA=1
Q160.
SPI can act as a half duplex transmission?

a.

true

b.

false

c.

depends on the conditions

d.

can’t be said

Discuss
Answer: (b).false
Page 16 of 36

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