User manual

AIMB-203 User Manual 40
PCI Express Device Register Settings
 Relaxed Ordering
Enable or disable Relaxed Ordering.
 Extended Tag
Enable or disable Extended Tag.
 No Snoop
Enable or disable No Snoop.
 Maximum Payload
Set Maximum Payload of PCI Express Device or allow System BIOS to select
the value.
 Maximum Read Request
Set Maximum Read Request Size of PCI Express Device or allow System BIOS
to select the value.
PCI Express Link Register Settings
 ASPM Support
Enable or disable ASPM Support
 Extended Synch
Enable or disable Extended Synch
 Link Training Retry
Defines number of retry attempts software will take to retrain the link if previous
training attempt was unsuccessful.
 Link Training Timeout
Defines number of micro-seconds software that will wait before polling "Link
Training" bit in link status register. Values range from 10 to 1000 uS.
 Unpopulated Links
In order to save power, software will disable unpopulated PCI Express links, if
this option set to 'Disable Link'.