Avalue EBM-A50M User Manual
Page 46

EBM-A50M User
’s Manual
46 EBM-A50M User
‟s Manual
Item
Options
Description
Relaxed Ordering
Disabled
Enabled
Enables or Disables PCI Express Device
Relaxed ordering.
Extended Tag
Disabled
Enabled
If ENABLED, allows Device to use 8-bit
Tag field as a requester.
No Snoop
Disabled
Enabled
Enables or Disables PCI Express Device
No Snoop option.
Maximum Payload
Auto
128 Bytes
256 Bytes
512 Bytes
1024 Bytes
2048 Bytes
4096 Bytes
Set Maximum Payload of PCI Express
Device or allow System BIOS to select the
value
Maximum Read Request
Auto
128 Bytes
256 Bytes
512 Bytes
1024 Bytes
2048 Bytes
4096 Bytes
Set Maximum Read Request size of PCI
Express Device or allow System BIOS to
select the value
ASPM Support
Disabled
Auto
Force L0s
Automatically enable ASPM based on
reported capabilities and known issues.
Extended Synch
Disabled
Enabled
If ENABLED allows generation of
Extended Synchronization patterns.
Link Training Retry
Disabled
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)
1 ~ 100
Defines number of Microseconds software
will wait before polling
“Link Training” bit in
Link Status register. Value ranges from 1
to 100 uS.
Unpopulated Links
Keep Link ON
Disable Link
In order to save power, software will
disable unpopulated PCI Express links, if
this option is set to
“Disable Link”