The vector address of external interrupt source INT1 is ()
A. 0003H
B. 000BH
C. 0013H
D. 002BH
查看答案
When the external interrupt 0 sends an interrupt request, the interrupt response condition is().
A. SETB ET0
B. SETB EX0
C. MOV IE,
D. 81H
E. MOV IE,
F. 61H
Interrupt is a kind of ()
A. Resource sharing technology
B. Data conversion technology
C. Data sharing technology
D. Parallel processing technology
When MCS-51 single chip microcomputer applies for interrupt from the same priority interrupt source at the same time, CPU responds first.
A. External interrupt 0
B. External interrupt 1
C. Timer 0 interrupt
D. Timer 1 interrupt
The interrupt request flag of external interrupt 1 of MCS-51 is ()
A. ET1
B. TF1
C. IT1
D. IE1