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The serial port interrupt is generated if

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+1 vote
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in Microprocessor by (39.4k points)
The serial port interrupt is generated if

(a) RI is set

(b) RI and TI are set

(c) Either RI or TI is set

(d) RI and TI are reset

I had been asked this question in class test.

This is a very interesting question from Interrupt and Stack of 8051 -1 in section Microcontroller 8051 of Microprocessor

1 Answer

0 votes
by (49.2k points)
Right answer is (c) Either RI or TI is set

For explanation: The serial port interrupt is generated if atleast one of the two bits, RI and TI is set.

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