IRQ#
Typical Intterupt Resource
15
Secondary IDE controller
16
N/A
17
N/A
18
N/A
19
N/A
20
N/A
21
N/A
22
N/A
23
N/A
Note (1): These IRQs can be used for PCI devices when onboard device is disabled.
6.5.
PCI Configuration Space Map
Bus Number Device Number
00h
00h
00h
02h
00h
08h
00h
14h
00h
16h
00h
17h
00h
1Ch
00h
1Ch
00h
1Ch
00h
1Ch
00h
1Dh
00h
1Dh
00h
1Dh
00h
1Dh
00h
1Fh
00h
1Fh
00h
1Fh
00h
1Fh
00h
1Fh
44
Connected to Pin
IRQ15 via SERIRQ
P.E.G Root Port,Intel HDA, PCIE Port
0/1/2/3/4/5/6, I.G.D., XHCI Controller
PCIE Port 0/1/2/3/4/5/6, P.E.G Root
Port,
PCIE Port 0/1/2/3/4/5/6, P.E.G Root
Port, SMBus Controller
PCIE Port 0/1/2/3/4/5/6, P.E.G Root
Port,
Gbe Controller
N/A
Intel HDA
N/A
Function Number Routing
00h
N/A
00h
Internal
00h
Internal
00h
Internal
00h
Internal
00h
Internal
00h
Internal
01h
Internal
02h
Internal
03h
Internal
00h
Internal
01h
Internal
02h
Internal
03h
Internal
00h
N/A
02h
Internal
03h
Internal
04h
Internal
06h
Internal
Available
Note (1)
Note (1)
Note (1)
Note (1)
Note (1)
Note (1)
Note (1)
Note (1)
Note (1)
Description
Intel host Bridge
Intel I.G.D.
Gaussian Mixture Model
xHCI Controller
Intel Management Engine Interface
Intel AHCI controller
Intel PCI Express Root port 1
Intel PCI Express Root port 2
Intel PCI Express Root port 3
Intel PCI Express Root port 4
Intel PCI Express Root port5
Intel PCI Express Root port 6
Intel PCI Express Root port 7
Intel PCI Express Root port 8
Intel LPC Interface Bridge
Memory Controller
HDA Controller
SMBus Controller
Ethernet Controller
System Resources
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