Interrupt Request Lines (Irq) - IBASE Technology ET875 Series 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 39
IRQ 8
IRQ 27
IRQ 4
IRQ 3
IRQ 10
IRQ 11
IRQ 4294967281
IRQ 1
IRQ 12
IRQ 4294967293
IRQ 4294967292
IRQ 4294967291
IRQ 4294967290
IRQ 4294967289
IRQ 4294967288
IRQ 42
IRQ 54 ~ IRQ 204
IRQ 256 ~ IRQ 511
IRQ 4294967287
IRQ 4294967286
IRQ 4294967285
IRQ 4294967284
IRQ 4294967283
IRQ 4294967282
IRQ 4294967280
ET875 Series User's Manual
Function
High Definition Audio Controller
Intel SD Host Controller
High precision event timer
Intel(R) Serial IO I2C Host Controller - 5AAC
Communications Port (COM1)
Communications Port (COM2)
Communications Port (COM3)
Communications Port (COM4)
Intel(R) USB 3.0 eXtensible Host Controller -
1.0 (Microsoft)
Standard PS/2 Keyboard
PS/2 Compatible Mouse
Intel(R) I210 Gigabit Network Connection
Intel(R) I210 Gigabit Network Connection
Intel(R) I210 Gigabit Network Connection
Intel(R) I210 Gigabit Network Connection
Intel(R) I210 Gigabit Network Connection
Intel(R) I210 Gigabit Network Connection
Intel SD Host Controller
Microsoft ACPI-Compliant System
Microsoft ACPI-Compliant System
Intel(R) I210 Gigabit Network Connection #2
Intel(R) I210 Gigabit Network Connection #2
Intel(R) I210 Gigabit Network Connection #2
Intel(R) I210 Gigabit Network Connection #2
Intel(R) I210 Gigabit Network Connection #2
Intel(R) I210 Gigabit Network Connection #2
Intel(R) Trusted Execution Engine Interface
Appendix
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