no. of interrupts of 8051 excluding reset.
Answers were Sorted based on User's Feedback
Answer / vivek
5 intr
2 for timer 0 & 1
2 for external intr
1 for serial intr
1more is there for timer 2 but in 8052
Is This Answer Correct ? | 44 Yes | 8 No |
Answer / gaurav
6 intrupts
5 are maskable
1 is reset which is not maskable
Is This Answer Correct ? | 19 Yes | 4 No |
Answer / niranjan
there r 5 interrupts excluding reset.. and these can be
masked..
2 for timer 0 & 1
2 for ext int
1 for serial int
Is This Answer Correct ? | 16 Yes | 3 No |
Answer / gaurav pathak
In reality only 5 interrupts are available in 8051, but many
manufacturers data sheet state that there are 6 interrupts
since they include reset.
1)Reset
2)Two interrupts are for Timers. One for timer0 & other for
timer1.
3)Two interrupts are set for hardware external hardware
interrupts. Pin no. 12 & 13 in port 3 & for the external
hardware interrupts INT0 & INT1.
4)Serial communication has a single interrupt that belongs
to both transmit & receive.
Is This Answer Correct ? | 13 Yes | 0 No |
Answer / vijay kishore
5 Excluding Reset:
EXT0 -- Interrupt Number 0
TIMER0 -- Interrupt Number 1
EXT1 -- Interrupt Number 2
TIMER1 -- Interrupt Number 3
SERIAL -- Interrupt Number 4
In the order of Interrupt Number as written in Interrupt
Vector Table.
TIMER2 --- Interrupt Number 5 (for 8052).
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / prinsai
yes 6 interrupts
2 external
2 timer
and 1 serial
Is This Answer Correct ? | 2 Yes | 5 No |
Answer / damodhar
there 6 interrupts 3 external and 3 internal
External :--
1) Reset
2) Two Ext inte.
Is This Answer Correct ? | 3 Yes | 10 No |
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