Generation of Serial Port Interrupt - It's reasons

Q.  Which among the below mentioned reasons is/are responsible for the generation of Serial Port Interrupt?

a. Overflow of timer/counter 1
b. High to low transition on pin INT1
c. High to low transition on pin INT0
d. Setting of either TI or RI flag
- Published on 09 Nov 15

a. A & B
b. Only B
c. C & D
d. Only D

ANSWER: Only D

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