Multi-Processor Communication of 8051 - MCQs with Answers

Multi-Processor Communication of 8051 - MCQs with Answers


Q1. Which serial modes possess the potential to support the multi-processor type of communication?

a. Modes 0 & 1
b. Modes 1 & 2
c. Modes 2 & 3
d. All of the above

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ANSWER: c. Modes 2 & 3



Q2. How does it become possible for 9th bit to differentiate the address byte from the data byte during the data transmission process in multiprocessor communication?

a. By recognizing 9th bit as '1' for address byte & '0' for data byte
b. By recognizing 9th bit as '0' for address byte & '1' for data byte
c. By recognizing 9th bit as '1' for address as well as data bytes
d. By recognizing 9th bit as '0' for address as well as data bytes

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ANSWER: a. By recognizing 9th bit as '1' for address byte & '0' for data byte



Q3. Which byte has the capability to interrupt the slave when SM2 bit is assigned to be '1' after the initialization process in the multiprocessor mode of communication?

a. Address byte
b. Data byte
c. Both a & b
d. None of the above

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ANSWER: a. Address byte


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