Fortec Star ET876, User Manual

Page: 61 / 67

Appendix
ET876 Series
User’s Manual
51
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 39 Intel SD Host Controller
IRQ 8 High precision event timer
IRQ 27 Intel(R) Serial IO I2C Host Controller - 5AAC
IRQ 4 Communications Port (COM1)
IRQ 3 Communications Port (COM2)
IRQ 10 Communications Port (COM3)
IRQ 11 Communications Port (COM4)
IRQ 4294967281
Intel(R) USB 3.0 eXtensible Host Controller -
1.0 (Microsoft)
IRQ 1 Standard PS/2 Keyboard
IRQ 12 PS/2 Compatible Mouse
IRQ 4294967293 Intel(R) I210 Gigabit Network Connection
IRQ 4294967292 Intel(R) I210 Gigabit Network Connection
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 42 Intel SD Host Controller
IRQ 54 ~ IRQ 204 Microsoft ACPI-Compliant System
IRQ 256 ~ IRQ 511 Microsoft ACPI-Compliant System
IRQ 4294967287 Intel(R) I210 Gigabit Network Connection #2
IRQ 4294967286 Intel(R) I210 Gigabit Network Connection #2
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 4294967280 Intel(R) Trusted Execution Engine Interface