no. of interrupts of 8051 excluding reset.

Categories >> Engineering >> Electronics Communications
Suggest New Category

Question Posted / kunalpatel83

10 Answers
19424 Views
CBIT, ONGC, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

no. of interrupts of 8051 excluding reset. ..

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

no. of interrupts of 8051 excluding reset. ..

Answer / gaurav

6 intrupts
5 are maskable
1 is reset which is not maskable

Is This Answer Correct ?

19 Yes

4 No

no. of interrupts of 8051 excluding reset. ..

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

no. of interrupts of 8051 excluding reset. ..

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

no. of interrupts of 8051 excluding reset. ..

Answer / ajay kumar yadav

6 intrupts

Is This Answer Correct ?

33 Yes

21 No

no. of interrupts of 8051 excluding reset. ..

Answer / prashanth

Is This Answer Correct ?

6 Yes

2 No

no. of interrupts of 8051 excluding reset. ..

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

no. of interrupts of 8051 excluding reset. ..

Answer / prinsai

yes 6 interrupts
2 external
2 timer
and 1 serial

Is This Answer Correct ?

2 Yes

5 No

no. of interrupts of 8051 excluding reset. ..

Answer / damodhar

there 6 interrupts 3 external and 3 internal

External :--
1) Reset
2) Two Ext inte.