Fujitsu mb91192 Manual Do Utilizador
221
13.3
External Interrupt (INT0 to 2)
The external interrupt (INT0 to 2) has 3 inputs.
■
Feature of External Interrupt (INT0 to 2)
•
Each interrupt is independent vector.
•
Usable for returning from standby.
■
Block Diagram of External Interrupt (INT0 to 2)
Figure 13.3-1 Block diagram of external interrupt (INT0 to 2)
■
Register List of External Interrupt (INT0 to 2)
Figure 13.3-2 Register list of external interrupt (INT0 to 2)
INT2
INT1
IF3
IF2
IF1
Test
INT2E INT1E INT0E
Test
I2CLR I1CLR I0CLR
Test
INT0
IRQ04
SR
R
EIF
EIE
Internal Bus
IRQ03
IRQ02
clr
enable
7
0
bit
EIE
EIF
External Interupt Enable R
External Interupt Request
000098
H
Address:
000099
H