8 pci express configuration, Active state power-management, Pcie ports 0-3 configuration – ADLINK Express-LPC User Manual
Page 53: Pcie port (0-5) ioxapic enable, Pcie high priority port

Page 53
Express-IA533 User’s Manual
Page 53
Express-IA533 User’s Manual
Express-LPC User’s Manual
Page 53
8.3.8 PCI Express Configuration
You can use this screen to specify options for the PCI Express Configuration Settings.
Active State Power-Management
This option allows you to enable/disable the Active State Power Management (ASPM)
function. ASPM is a PCIe power management specification.
PCIE Ports 0-3 Configuration
Allows you to configure the PCIE0~PCIE3 of the south bridge as one x4 slot or four x1 slots.
This function is only available on the Extended Version module supporting six PCIe x1.
PCIE Port (0-5) IOxAPIC Enable
This function is used to control the availability of the PCIE Port 0~5 IOxAPIC.
PCIE High Priority Port
This function is used to select a PCIE port as high priority port. Transactions on this port
have higher priority than other ports.