Interrupt Request Lines (Irq) - IBASE Technology IB818 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 25
IRQ 4294967280 ~
IRQ 4294967285
IRQ 8
IRQ 4
IRQ 3
IRQ 5
IRQ 10
IRQ 4294967279
IRQ 54 ~ IRQ 511
IRQ 4294967292
IRQ 4294967293
IRQ 14
IRQ 4294967294
IRQ 4294967286 ~
IRQ 4294967291
IRQ 0
IB818F User's Manual
Function
High Definition Audio Controller
Intel(R) I210 Gigabit Network Connection
High precision event timer
Communications Port (COM1)
Communications Port (COM2)
Communications Port (COM3)
Communications Port (COM4)
Intel(R) USB 3.0 eXtensible Host Controller -
1.0 (Microsoft)
Microsoft ACPI-Compliant System
Intel(R) Trusted Execution Engine Interface
Intel(R) HD Graphics
Intel(R) Serial IO GPIO Host Controller -
INT3452
Standard SATA AHCI Controller
Intel(R) I210 Gigabit Network Connection #2
System timer
Appendix
65