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Appendix
FWA8800 User Manual
57
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 4294967286
Standard SATA AHCI Controller
IRQ 7
AMD GPIO Controller
IRQ 4294967291
PCI Express Root Port
IRQ 4294967292
PCI Express Root Port
IRQ 4
Communications Port (COM1)
IRQ 3
Communications Port (COM2)
IRQ 11
Ethernet Controller
IRQ 54 ~ IRQ 204
Microsoft ACPI-Compliant System
IRQ 256 ~ IRQ 511
Microsoft ACPI-Compliant System
IRQ 0
System timer
IRQ 4294967294
PCI Express Root Port
IRQ 4294967293
PCI Express Root Port
IRQ 4294967290
PCI Express Root Port
IRQ 4294967289
PCI Express Root Port
IRQ 4294967288
PCI Express Root Port
IRQ 4294967287
PCI Express Root Port
IRQ 5
PCI Encryption/Decryption Controller
IRQ 4294967285
AMD PSP 3.0 Device
IRQ 4294967284
AMD PSP 3.0 Device
IRQ 43
High Definition Audio Controller
IRQ 4294967283
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
IRQ 4294967282
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
IRQ 4294967281
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
IRQ 4294967280
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
IRQ 4294967279
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
IRQ 4294967278
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
IRQ 4294967277
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)
IRQ 4294967276
AMD USB 3.0 eXtensible Host Controller - 1.0 (Microsoft)