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Welcome to the 8051 Microcontroller MCQs Page

Dive deep into the fascinating world of 8051 Microcontroller with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 8051 Microcontroller, a crucial aspect of Computer Architecture. In this section, you will encounter a diverse range of MCQs that cover various aspects of 8051 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 8051 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 8051 Microcontroller. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

8051 Microcontroller MCQs | Page 6 of 14

Q51.
Which devices are specifically being used for converting serial to parallel and from parallel to serial respectively?
Discuss
Answer: (c).registers
Discuss
Answer: (c).one uses asynchronous means of communication and the other uses asynchronous and synchronous means of communication
Discuss
Answer: (b).it tells us about the start and stop of the data to be transmitted or received
Q54.
Which of the following signal control the flow of data?
Discuss
Answer: (a).RTS
Q55.
Which of the following is the logic level understood by the micro-controller/micro-processor?
Discuss
Answer: (a).TTL logic level
Discuss
Answer: (c).the RxD of one is the TxD for the other
Discuss
Answer: (b).to make the two devices compatible with each other, so that the transmission becomes easy and error free
Q58.
With what frequency UART operates( where f denoted the crystal frequency )?
Discuss
Answer: (d).f/384
Discuss
Answer: (b).to program the start bit, stop bit, and data bits of framing
Discuss
Answer: (b).change a bit of the PCON register
Page 6 of 14

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