ADLINK Technology COM Express Express-BL User Manual page 66

7.3.7.2. PCI and PCIe > PCH-PCIe Configuration
Feature
PCH-PCIe Configuration
PCI Express Clock Gating
DMI Link ASPM Control
DMI Link Extended Synch Control
PCIe-USB Glitch W/A
PCIE Root Port Function Swapping
Subtractive Decode
PCIE Ports 1-4 Configuration
PCIE Ports 5-8 Configuration
PCI Express Root Port 1~7
PCI and PCIe > PCH-PCIe Configuration > PCI Express Root Port
Feature
PCI Express Root Port
ASPM Support
L1 Substates
URR
FER
NFER
CER
CTO
SEFE
Page 66
Options Description
Info only
Disabled Enable/Disable PCI Express Clock Gating for each root port.
Enable
Disabled The control of Active State Power Management on both NB side
and SB side of the DMI Link.
Enable
Disabled The control of Extended Synch on SB side of the DMI Link.
Enable
Disabled PCIe-USB Glitch W/A for bad USB device(s) connected behind
PCIE/PEG Port.
Enable
Disabled Enable/Disable PCI Express PCI Express Root Port Function
Swapping.
Enable
Disabled Enable/Disable PCI Express Subtractive Decode.
Enable
4x1 Port To configure PCI-E Port 1-4 of PCH.
1X2 2X1 Port [4X1]: Port 1-4 (x1) and Port 8 (x1)
2X2 Port [1x2 2x1]: Port 1 (x2), Port 2 (disabled), Ports 3 and Port 4 (x1)
[2x2]: Port 1-2 (x2) and Port 3-4 (x2)/[1x4]:Port 1 (x4), Ports 2-4
1X4 Port
(disable)
4x1 Port To configure PCI-E Port 5-7 of PCH.
1X2 2X1 Port [4X1]
[1x2 2x1]: Port 5 (x2), Port 6 (disabled), Ports 7 and Port 8 (x1)
Submenu Configure PCI Express Root Port 1~7 setting.
Options
Disabled
Enable
Disabled
Enable
Disabled
Enable
Disabled
Enable
Disabled
Enable
Disabled
Enable
Disabled
Enable
Disabled
Enable
Disabled
Enable
: Port 5-8 (x1) and Port 8 (x1)
Description
Control the PCI Express Root Port.
Set the ASPM Level: Force L0s - Force all links to L0s
State: AUTO - BIOS auto configure: DISABLE - Disables
ASPM
PCI Express L1 Substates settings.
Enable/Disable PCI Express Unsupported Request
Reporting.
Enable/Disable PCI Express Device Fatal Error Reporting.
Enable/Disable PCI Express Device Non-Fatal Error
Reporting.
Enable/Disable PCI Express Device Correctable Error
Reporting.
Enable/Disable PCI Express Completion Timer TO.
Enable/Disable Root PCI Express System Error on Fatal
Error.