Pitx-sp user's guide apic mode – Kontron pITX-SP User Manual
Page 57
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KTD-S0002-I
Page 52
Appendix A: System Resources
p
ITX-SP User's Guide
APIC mode
IRQ #
Used for
Available
Comment
0
Timer 0
No
1
Keyboard
No
2
8259 Slave (Cascade)
No
3
Yes
4
Yes
5
Yes
6
Yes
7
GPIO IRQ
No
8
Real Time Clock (RTC)
No
9
ACPI Power Management
No
10
Yes
11
Yes
12
Yes
13
Floating Point Unit (FPU)
No
14
Parallel-ATA Controller (P-ATA)
No
15
Limited
Second P-ATA channel (e.g. WIN XP)
16
PCI IRQ [A]
for PCI
17
PCI IRQ [B]
for PCI
18
PCI IRQ [C]
for PCI
USB 1.1 controller Port 5/6 Note (1)
19
PCI IRQ [D]
for PCI
USB 2.0 controller Note (1)
20
Yes
21
Yes
22
Yes
23
Yes
Note:
1)
If the
Used for device is disabled in the BIOS Setup the corresponding interrupt is free.
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