Interrupt Request Lines (Irq) - IBASE Technology IB981AF-C226 User Manual

B.

Interrupt Request Lines (IRQ)

Peripheral devices use interrupt request lines to notify CPU for the
service required. The following table shows the IRQ used by the
devices on board.
Level
IRQ 1
IRQ 4294967293
IRQ 4294967292
IRQ 4294967287
IRQ 22
IRQ 10
IRQ 23
IRQ 16
IRQ 13
IRQ 4
IRQ 3
IRQ 11
IRQ 7
IRQ 4294967288
IRQ 12
IRQ 0
IRQ 54 ~ IRQ 204
IRQ 256 ~ IRQ 511
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Function
Standard PS/2 Keyboard
Intel(R) 8 Series/C220 Series PCI Express
Root Port #1 - 8C10
Intel(R) 8 Series/C220 Series PCI Express
Root Port #3 - 8C14
Intel(R) Management Engine Interface
High Definition Audio Controller
Intel(R) 8 Series/C220 Series SMBus
Controller - 8C22
Intel(R) 8 Series/C220 Series USB EHCI
#1 - 8C26
Intel(R) 8 Series/C220 Series USB EHCI
#2 - 8C2D
Numeric data controller
Communications Port (COM1)
Communications Port (COM2)
Communications Port (COM3)
Communications Port (COM4)
Intel(R) USB 3.0 eXtensible Host Controller
- 1.0 (Microsoft)
Microsoft PS/2 Mouse
System timer
Microsoft ACPI-Compliant System
Microsoft ACPI-Compliant System
IB981 User's Manual