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User Guide XB1 COM Express Module
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Technical Reference
Local PCI Devices
The following table shows the on-board PCI devices and their location within the PCI configuration
space. These devices reside mainly within the i915GM chipset.
Bus
Number
Device
Number
Function
Number
Vendor ID Device ID Description
0 0 0 0x8086 0x2590 Host Bridge
0 2 0 0x8086 0x2592 Internal Graphics Device
0 2 1 0x8086 0x2792 Int. Graphics Config. Regs.
0 27 0 0x8086 0x2668 Intel High Definition Audio
0 28 0 0x8086 0x2660 PCI Express Port 1
0 28 1 0x8086 0x2662 PCI Express Port 2
0 28 2 0x8086 0x2664 PCI Express Port 3
0 28 3 0x8086 0x2666 PCI Express Port 4
0 29 0 0x8086 0x2658 USB UHCI Controller #1
0 29 1 0x8086 0x2659 USB UHCI Controller #2
0 29 2 0x8086 0x265A USB UHCI Controller #3
0 29 3 0x8086 0x265B USB UHCI Controller #4
0 29 7 0x8086 0x265C USB 2.0 EHCI Controller
0 30 0 0x8086 0x244E PCI-to-PCI Bridge
0 30 2 0x8086 0x266E AC'97 Audio Controller
0 30 3 0x8086 0x266D AC'97 Modem Controller
0 31 0 0x8086 0x2640 LPC Bridge
0 31 1 0x8086 0x266F IDE Controller
0 31 2 0x8086 0x2651 SATA Controller
0 31 3 0x8086 0x266A SMB Controller
3
1)
0 0 0x8086 0x108B
2)
0x108C
2)
Ethernet Controller NC1
1)
This bus number can vary depending on the PCI enumeration schema implemented in BIOS.
2)
The XB1 COM Express Module is available with a 82573L or 82573E/V Ethernet controller.