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Kontron AT8060 User Manual

Page 87

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Software Setup

72

AT8060

www.kontron.com

PCI Express Link Register

Settings

Title

ASPM Support

Disabled, Auto,

Force L0s

Set the ASPM Level:

Force L0s - Force all links

to L0s State : AUTO -

BIOS auto configure :

DISABLE - Disables ASPM

WARNING: Enabling

ASPM may cause some

PCI-E devices to fail

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)

Defines number of

Microseconds software

will wait before polling

'Link Training' bit in Link

Status register. Value

range from 10 to 1000

uS.

Unpopulated Links

Keep Link ON,

Disable Link

In order to save power,

software will disable

unpopulated PCI Express

links, if this option set

to 'Disable Link'.

Feature

Option

Description

Help text