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Publication No.
500-9300007876-000
Rev. C.0
Functional Description 67
6.5 PCI Express Interfaces
The Intel 4th Generation i7 CPU and Intel PCH offers several PCI Express
interfaces. The PCI Express channels are dedicated to the following devices:
QM87 Express Chipset Root Complex
Figure 6-2 PCI Express Channels
4th Generation Core i7 CPU Root Complex
– x8 PCIe port connects to XMC site 1 via mux
– Lower x4 muxed to PCIe to PCI-X bridge to PMC site 1
– One x4 PCIe port muxed between XMC site 2 and PCIe to PCI-X bridge
to PMC site 2
– One x4 PCIe port to PCIe to PCI-X bridge to TSI148 VME bridge
[3.0]
[7.4]
[11.8]
[15.12]
CPU
PCIe
x4
MUX
Bridge
PMC
x8
x4
x4
x4
XMC
PMC
VME
PMC/XMC
Site 1
PMC/XMC
Site 2
x4
x4
x4
MUX
Bridge
[3]
Channels 1
PCH
PCIe
GigE
VME P0
Front Panel
[6]
Channels 2
x1
x1
x1
x1
GigE
GigE
GigE
XMC