Appendix
IB918F User’s Manual
65
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 4294967292
PCI Express Root Port
IRQ 0
High precision event timer
IRQ 0
System timer
IRQ 8
High precision event timer
IRQ 7
AMD GPIO Controller
IRQ 4294967272
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967271
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967270
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967269
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967268
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967267
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967266
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967265
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4
Communications Port (COM1)
IRQ 3
Communications Port (COM2)
IRQ 5
Communications Port (COM3)
IRQ 5
Communications Port (COM4)
IRQ 6
Communications Port (COM5)
IRQ 6
Communications Port (COM6)
IRQ 53
High Definition Audio Controller
Содержание IB918
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