Preliminary
S3C2451X RISC MICROPROCESSOR
I/O PORTS
11-39
EXTINTn (External Interrupt Control Register n) (Continued)
EXTINT2 Bit
Description
Reset
Value
FLTEN23
[31]
Filter enable for EINT23
0 = Filter Enable
1= Filter Disable
0
EINT23
[30:28]
Setting the signaling method of the EINT23.
000 = Low level
001 = High level
01x = Falling edge triggered
10x = Rising edge triggered
11x = Both edge triggered
000
FLTEN22
[27]
Filter Enable for EINT22
0 = Filter Enable
1= Filter Disable
0
EINT22
[26:24]
Setting the signaling method of the EINT22.
000 = Low level
001 = High level
01x = Falling edge triggered
10x = Rising edge triggered
11x = Both edge triggered
000
FLTEN21
[23]
Filter Enable for EINT21
0 = Filter Enable
1= Filter Disable
0
EINT21
[22:20]
Setting the signaling method of the EINT21.
000 = Low level
001 = High level
01x = Falling edge triggered
10x = Rising edge triggered
11x = Both edge triggered
000
FLTEN20
[19]
Filter Enable for EINT20
0 = Filter Enable
1= Filter Disable
0
EINT20
[18:16]
Setting the signaling method of the EINT20.
000 = Low level
001 = High level
01x = Falling edge triggered
10x = Rising edge triggered
11x = Both edge triggered
000
FLTEN19
[15]
Filter enable for EINT19
0 = Filter Enable
1= Filter Disable
0
EINT19
[14:12]
Setting the signaling method of the EINT19.
000 = Low level
001 = High level
01x = Falling edge triggered
10x = Rising edge triggered
11x = Both edge triggered
000
FLTEN18
[11]
Filter enable for EINT18
0 = Filter Enable
1= Filter Disable
0
EINT18
[10:8]
Setting the signaling method of the EINT18.
000 = Low level
001 = High level
01x = Falling edge triggered
10x = Rising edge triggered
11x = Both edge triggered
000