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Appendix
ET870 Series
User’s Manual
55
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
Function
IRQ 25
High Definition Audio Controller
IRQ 4294967291
Intel(R) I210 Gigabit Network Connection
IRQ 4294967290
Intel(R) I210 Gigabit Network Connection
IRQ 4294967289
Intel(R) I210 Gigabit Network Connection
IRQ 4294967288
Intel(R) I210 Gigabit Network Connection
IRQ 4294967287
Intel(R) I210 Gigabit Network Connection
IRQ 4294967286
Intel(R) I210 Gigabit Network Connection
IRQ 8
High precision event timer
IRQ 4
Communications Port (COM1)
IRQ 3
Communications Port (COM2)
IRQ 10
Communications Port (COM3)
IRQ 11
Communications Port (COM4)
IRQ 4294967279
Intel(R) USB 3.0 eXtensible Host Controller -
1.0 (Microsoft)
IRQ 4294967293
Intel(R) HD Graphics
IRQ 54 ~ IRQ 204
Microsoft ACPI-Compliant System
IRQ 256 ~ IRQ 511
Microsoft ACPI-Compliant System
IRQ 4294967285
Intel(R) I210 Gigabit Network Connection #2
IRQ 4294967284
Intel(R) I210 Gigabit Network Connection #2
IRQ 4294967283
Intel(R) I210 Gigabit Network Connection #2
IRQ 4294967282
Intel(R) I210 Gigabit Network Connection #2
IRQ 4294967281
Intel(R) I210 Gigabit Network Connection #2
IRQ 4294967280
Intel(R) I210 Gigabit Network Connection #2
IRQ 4294967292
Intel(R) Trusted Execution Engine Interface
IRQ 14
Intel(R) Serial IO GPIO Host Controller -
INT3452
IRQ 14
Intel(R) Serial IO GPIO Host Controller -
INT3452
Summary of Contents for ET870 Series
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Page 53: ...BIOS Setup ET870 Series User s Manual 45 4 4 5 Chipset Settings...