Samsung S3C8275X - Manual (Page 79)

S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X CONTROL REGISTER
4-9
EXTICONH
— External Interrupt Control Register (High Byte) F8H 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 P1.7 External Interrupt (INT7) 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 P1.6 External Interrupt (INT6) 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 P1.5 External Interrupt (INT5) 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 P1.4 External Interrupt (INT4) 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