IBASE Technology MPT-500R, User Manual, Page: 79 / 94

Appendix
MPT-500R/RH Series User Manual 71
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 16 High Definition Audio Controller
IRQ 4294967288~90 Intel(R) Ethernet Controller (3) I225-IT
IRQ 4 Communications Port (COM1)
IRQ 5 Communications Port (COM3)
IRQ 7 Communications Port (COM4)
IRQ 4294967287 Intel(R) Ethernet Controller (3) I225-IT #2
IRQ 4294967286 Intel(R) Ethernet Controller (3) I225-IT #2
IRQ 4294967285 Intel(R) Ethernet Controller (3) I225-IT #2
IRQ 4294967294 Standard SATA AHCI Controller
IRQ 4294967293
Intel(R) USB 3.10 eXtensible Host Controller - 1.20
(Microsoft)
IRQ 55~204 Microsoft ACPI-Compliant System
IRQ 256~511 Microsoft ACPI-Compliant System
IRQ 1 Standard PS/2 Keyboard
IRQ 12 Microsoft PS/2 Mouse
IRQ 4294967284 Intel(R) Ethernet Controller (3) I225-IT #3
IRQ 4294967283 Intel(R) Ethernet Controller (3) I225-IT #3
IRQ 4294967282 Intel(R) Ethernet Controller (3) I225-IT #3
IRQ 4294967291 Intel(R) Management Engine Interface #1
IRQ 4294967292 Intel(R) UHD Graphics
IRQ 0 System timer