COMe-bIP6 / System Resources
5 System Resources
5.1 Interrupt Request (IRQ) Lines
IRQ # Used For Available Comment
0 Timer0 No -
1 Keyboard No -
2 Cascade No -
3 COM2 No Type2: External SIO COM2, Type6: onboard COM2
4 COM1 No Type2: External SIO COM1, Type6: onboard COM1
5 COM3 Note(4) Type2: not used, Type6: External SIO COM1
6 - Yes -
7 SIO LPT No -
8 RTC No -
9 ACPI No -
10 COM4 Note(4) Type2: not used, Type6: External SIO COM2
11 SMBus No -
12 PS/2 Mouse No -
13 FPU No -
14 - Yes -
15 - Yes -
16 LNK A No PCIe RP 0 + PCIe RP 4 + USB EHCI#1 + Intel ME + I.G.D.; Note(3)
17 LNK B No PCIe2Pata (Type2 only) + PCIe RP 1 + PCIe RP 5; Note(3)
18 LNK C No PCIe2PCI (Type2 only) + PCIe RP 2 + PCIe RP 6; Note(3)
19 LNK D No PCIe RP 3 + SATA AHCI; Note(3)
20 LNK E No Note(3)
21 LNK F No Note(3)
22 LNK G No Note(3)
23 LNK H No USB EHCI#2
(1) If the “Used For” device is disabled in setup, the corresponding interrupt is available
for other device.
(2) Not available if ACPI is used
(3) ACPI OS decides on particular IRQ usage
(4) Depends on system configuration (onboard COM Port support and external SIO
presence)
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