Technical Reference
43
2.4
PCI Configuration Space Map
Table 12. PCI Configuration Space Map
Bus
Number (hex)
Device
Number (hex)
Function
Number (hex)
Description
00
00
00
Memory controller of Intel 82945G component
00
01
00
PCI Express x16 graphics port
(Note 1)
00 02 00 Integrated
graphics
controller
00
1B
00
Intel High Definition Audio Controller
00
1C
00
PCI Express port 1
00
1C
01
PCI Express port 2
00
1C
02
PCI Express port 3
00
1C
03
PCI Express port 4
00
1D
00
USB UHCI controller 1
00
1D
01
USB UHCI controller 2
00
1D
02
USB UHCI controller 3
00
1D
03
USB UHCI controller 4
00 1D 07 EHCI
controller
00 1E 00 PCI
bridge
00 1F 00 PCI
controller
00
1F
01
Parallel ATA IDE controller
00 1F 02 Serial
ATA
controller
00 1F 03 SMBus
controller
(Note 2)
00
00
PCI Conventional bus connector 1
(Note 2)
01
00
PCI Conventional bus connector 2
(Note 2)
08
00
Intel 82562G 10/100 Mbits/sec LAN PLC
01
00
00
PCI Express video controller (if present)
Notes:
1.
Present only when a PCI Express x16 graphics card is installed.
2.
Bus number is dynamic and can change based on add-in cards used.