Advantech SOM-6882 User Manual page 69

 PCI Express Configuration
Figure 3.62 PCI Express Configuration
 PCI Express Root Port 0
PCI Express Root Port 0 settings
 PCI Express Root Port 1
PCI Express Root Port 1 settings.
 PCI Express Root Port 2
PCI Express Root Port 2 settings.
 PCI Express Root Port 3
PCI Express Root Port 3 settings
 PCI Express Root Port 4
PCI Express Root Port 4 settings
 PCI Express Root Port 5
PCI Express Root Port 2 settings.
PCI Express Root Port 6

PCI Express Root Port 3 settings.
 PCI Express Root Port 7
PCI Express Root Port 4 settings.
59 SOM-6882 User Manual