ADLINK cExpress-HL - Manual (Page 59)

cExpress-HL Page 59
Feature Options Description
4096 Bytes
PCI Express Link Register Settings Info only
ASPM Support
WARNING: Enabling ASPM may cause some
PCI-E devices to fail
Disabled
Auto
Force L0s Set the ASPM Level: Force L0s - Force all links to L0s
Auto - BIOS auto configure
Disabled - Disables ASPM
Extended Synch Disabled
Enabled If enabled, allows generation of Extended Synchronization
patterns.
Link Training Retry Disable
2
3
5 Defines number of retry attempts software will take to retrain
the link if previous training attempt was unsuccessful.
Link Training Timeout (Us) 100 Defines number of microseconds software will wait before
polling 'Link Training' bit in Link Status register. Value range
from 10 to 10000 uS.
Unpopulated Links Keep Link ON
Disabled In order to save power, software will disable unpopulated PCI
Express links if this option set to Disabled.
Restore PCIE Registers Enabled
Disabled On non-PCI Express aware OSes (pre Windows Vista) some
devices may not be correctly reinitialized after S3. Enabling
this restores PCI Express device configurations on S3 resume.
Warning: Enabling this may cause issues with other hardware
after S3 resume.
PCIe Configuration Info only
PCIe Configuration Submenu
7.3.7.1 PCI and PCIe > PCIe Configuration
Feature Options Description
PCIe Configuration Info only
PCI Express Clock Gating Disable
Enable Enable / Disable PCI Express Clock Gating for each root port.
DMI Link ASPM Control Disable
Enable The control of Active State Power Management on both NB side
and SB side of the DMI Link.
DMI Link Extended Synch Control Disable
Enable The control of Extended Synch on SB side of the DMI Link.
PCIe-USB Glitch W/A Disable
Enable PCIe-USB Glitch W/A for bad USB device(s) connected behind
PCIE/PEG Port.
PCIE Root Port Function Swapping Disable
Enable Enable / Disable PCI Express PCI Express Root Port Function
Swapping.
Subtractive Decode Disable
Enable Enable / Disable PCI Express Subtractive Decode.
PCIE Ports 1-4 Configuration 4x1 Port
1X2 2X1 Port
2X2 Port
1X4 Port To configure PCI-E Port 1-4 of PCH.
[4X1] : Port 1-4 (x1) and Port 8 (x1)
[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 (disable)
PCI Express Root Port 1~4 Submenu Configure PCI Express Root Port 1~4 setting.