Intel D915GAG Product Specification - Page 59
PCI Configuration Space Map
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Technical Reference 2.5 PCI Configuration Space Map Table 16. PCI Configuration Space Map Bus Number (hex) 00 00 00 00 00 00 00 00 Device Number (hex) 00 01 02 02 1B 1C 1C 1C Function Number (hex) 00 00 00 01 00 00 01 02 Description Memory controller of Intel 82915G component PCI Express x16 graphics port (Note 1) Integrated graphics controller Integrated graphics controller Intel High Definition Audio Controller PCI Express port 1 (PCI Express x1 bus connector 1) PCI Express port 2 (Gigabit LAN controller, if present) PCI Express port 3 (PCI Express x1 bus connector 2) (Note 2) 00 1C 03 PCI Express port 4 (not used) 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 3) 00 00 PCI Conventional bus connector 1 (Note 3) 01 00 PCI Conventional bus connector 2 (Note 3) 02 00 PCI Conventional bus connector 3 (Note 2) (Note 3) 03 00 PCI Conventional bus connector 4 (Note 2) (Note 3) 08 00 Intel 82562EZ 10/100 Mbits/sec LAN PLC (if present) Notes: 1. Present only when a PCI Express x16 graphics card is installed. 2. Not present on the D915GAG board. 3. Bus number is dynamic and can change based on add-in cards used. 59