2.5.3Interrupt assignments
Standard interrupt assignments
IRQ | Priority Standard function |
01 System Timer
12 Keyboard Controller
2– Redirect to IRQ#9
412 Communications Port (COM1)*
513 IRQ Holder for PCI Steering*
614 Floppy Disk Controller
7 | 15 | Reserved |
83 System CMOS/Real Time Clock
94 IRQ Holder for PCI Steering*
105 IRQ Holder for PCI Steering*
116 IRQ Holder for PCI Steering*
12 | 7 | Reserved |
138 Numeric Data Processor
149 Primary IDE Channel
*These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
IOH
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| 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
PCIE4_1 | – | – | – | – | shared | – | – | – |
PCIE16_ | shared | – | – | – | – | – | – | – |
PCIE16_2 | – | – | – | – | – | – | shared | – |
ICH |
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PCIE16_3 | A | B | C | D | E | F | G | H |
– | shared | – | – | – | – | – | – | |
LAN1 (8056) | – | – | shared | – | – | – | – | – |
LAN2 (8056) | – | shared | – | – | – | – | – | – |
Marvell 6111 | shared | – | – | – | – | – | – | – |
PCI_1 | shared | – | – | – | – | – | – | – |
PCI_2 | – | shared | – | – | – | – | – | – |
USB controller 1 | – | – | – | – | – | – | – | shared |
USB controller 2 | – | – | – | shared | – | – | – | – |
USB controller 3 | – | – | shared | – | – | – | – | – |
USB controller 4 | shared | – | – | – | – | – | – | – |
USB controller 5 | – | – | – | – | – | shared | – | – |
USB controller 6 | – | – | – | shared | – | – | – | – |
USB 2.0 controller 1 | – | – | – | – | – | – | – | shared |
USB 2.0 controller 2 | – | – | shared | – | – | – | – | – |
SATA controller 1 | – | – | – | – | shared | – | – | – |
SATA controller 2 | – | – | – | – | shared | – | – | – |
Audio Azalia | – | – | – | – | – | – | shared | – |
ASUS P6T Deluxe V2 |