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If the microcontroller is expected to communicate in a multiprocessor system, then the required condition is

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If the microcontroller is expected to communicate in a multiprocessor system, then the required condition is

(a) SM0 is set

(b) SM1 is set

(c) SM2 is set

(d) REN is set

This question was addressed to me during an online exam.

Asked question is from Serial Communication Unit topic in portion Microcontroller 8051 of Microprocessor

1 Answer

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by (49.2k points)
Correct answer is (c) SM2 is set

Easiest explanation: The bit, SM2 is set if the microcontroller is expected to communicate in a multiprocessor system.

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