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PCI Express Settings
Feature
Relaxed Ordering
Extended Tag
No Snoop
Maximum Payload
Maximum Read Request
ASPM Support
Extended Sync
Link Training Retry
Link Training Timeout (uS)
Unpopulated Links
63
Options
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Auto
128 ... 4096 Bytes
Auto
128 ... 4096 Bytes
Disabled
Auto
Force L0s
Disabled
Enabled
Disabled
2
3
5
100
Keep Link ON
Disable Link
COMe-mTT10 / BIOS Operation
Description
Enables or Disables PCI Express Device Relaxed Ordering
If Enabled allows device to use 8-bit Tag field as a
requester
Enables or Disables PCI Express Device No Snoop option
Set Maximum Payload of PCI Express Device or allow
System BIOS to select the value
Set Maximum Read Request Size of PCI Express Device or
allow System BIOS to select the value
Set the ASPM Level: Force L0s - Force all links to L0s
State. Auto - BIOS auto configure. Disable - Disables
ASPM
If Enabled allows generation of Extended
Synchronization patterns
Defines number of Retry Attepmts software will take to
retrain the link if previous training attempt was
unsuccessful
Defines number of Microseconds software will wait
before polling 'Link Training' bit in Link Status register.
Value range from 1 to 100uS
In order to save power, sofware will disable
unpopulated PCI Express links, if this option set to
'Disable Link'
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