Vidyalelo
ECE · Q57

Microprocessors And Microcontrollers

Engineering and GATE · ECE · question 57

Q57

1. Program Counter (PC) Pushed to Stack 2. Generate LCALL to ISR 3. Complete Execution of instruction in progress 4. Clear the interrupt flag 5. Set interrupt in progress Correct order of execution of action taken by 8051 micro-controllers when an interrupt occurs:

A.
3, 1, 4, 5, 2
Answer
B.
1, 2, 4, 5, 3
C.
3, 4, 2, 5, 1
D.
1, 3, 2, 4, 5

Answer: Option A

Solution

Answer: Option A
No explanation is given for this question Let's Discuss on Board