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2.4
PCI Configuration Space Map
Table 13. PCI Configuration Space Map
Bus
Device
Number (hex)
Number (hex)
00
00
00
01
00
1B
00
1C
00
1C
00
1C
00
1C
00
1D
00
1D
00
1D
00
1D
00
1D
00
1E
00
1F
00
1F
00
1F
00
1F
(Note)
00
(Note)
00
(Note)
01
(Note)
05
Note:
Bus number is dynamic and can change based on add-in cards used.
Function
Number (hex)
Description
00
Memory controller of Intel 82975X component
00
PCI Express x16 graphics port
00
Intel High Definition Audio controller
00
PCI Express port 1
01
PCI Express port 2 (Gigabit Ethernet controller bridge)
02
PCI Express port 3
03
PCI Express port 4 (not used)
00
USB UHCI controller 1
01
USB UHCI controller 2
02
USB UHCI controller 3
03
USB UHCI controller 4
07
EHCI controller
00
PCI bridge
00
PCI controller
01
Parallel ATA IDE controller
02
Serial ATA controller
03
SMBus controller
00
Gigabit Ethernet controller
00
PCI Conventional bus connector 1
00
PCI Conventional bus connector 2
00
IEEE-1394a controller
Technical Reference
51
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