IBASE Technology ET980 Series, User Manual

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60 ET980 Series User’s 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 Function
IRQ 4294967294 Intel(R) PCI Express Root Port #9 - 51B0
IRQ 14
Intel(R) Serial IO GPIO Host Controller -
INTC1055
IRQ 4294967271~83 Intel(R) Ethernet Controller I226-LM
IRQ 19
Intel(R) Active Management Technology -
SOL (COM5)
IRQ 4294967289~91 PCI Express Downstream Switch Port
IRQ 4294967287 Intel(R) UHD Graphics
IRQ 4294967284 Intel(R) Management Engine Interface #1
IRQ 4294967292 PCI Express Downstream Switch Port
IRQ 4 Communications Port (COM1)
IRQ 3 Communications Port (COM2)
IRQ 10 Communications Port (COM3)
IRQ 11 Communications Port (COM4)
IRQ 4294967286
Intel(R) USB 3.20 eXtensible Host
Controller - 1.20 (Microsoft)
IRQ 4294967270 Intel® Smart Sound Technology BUS
IRQ 0 System timer
IRQ 55 ~ IRQ 204 Microsoft ACPI-Compliant System
IRQ 256 ~ IRQ511 Microsoft ACPI-Compliant System
IRQ 41 Trusted Platform Module 2.0
IRQ 4294967293 Intel(R) PCI Express Root Port #10 - 51B1
IRQ 4294967288 Standard SATA AHCI Controller
IRQ 4294967285
Intel(R) USB 3.10 eXtensible Host
Controller - 1.20 (Microsoft)