Samsung C8274X Manuel D’Utilisation
CONTROL REGISTERS
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
4-10
EXTICONL
—
External Interrupt Control Register (Low Byte)
F9H
Set 1, Bank 0
Bit
Identifier
.7 .6 .5 .4 .3 .2 .1 .0
Reset Value
0 0 0 0 0 0 0 0
Read/Write
R/W R/W R/W R/W R/W R/W R/W R/W
Addressing Mode
Register addressing mode only
.7–.6
P1.3 External Interrupt (INT3) Configuration Bits
0 0
Disable
interrupt
0
1
Enable interrupt by falling edge
1
0
Enable interrupt by rising edge
1
1
Enable interrupt by both falling and rising edge
.5–.4
P0.2 External Interrupt (INT2) Configuration Bits
0 0
Disable
interrupt
0
1
Enable interrupt by falling edge
1
0
Enable interrupt by rising edge
1
1
Enable interrupt by both falling and rising edge
.3–.2
P0.1 External Interrupt (INT1) Configuration Bits
0 0
Disable
interrupt
0
1
Enable interrupt by falling edge
1
0
Enable interrupt by rising edge
1
1
Enable interrupt by both falling and rising edge
.1–.0
P0.0 External Interrupt (INT0) Configuration Bits
0 0
Disable
interrupt
0
1
Enable interrupt by falling edge
1
0
Enable interrupt by rising edge
1
1
Enable interrupt by both falling and rising edge