Kontron KTQ77-FLEX User Manual download pdf (Page 71)

KTQ77/Flex Users Guide

KTD-N0848-C Page 71

Function

Selection

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

Set the ASPM Level: Force L0s

- Force all links to L0s State: Auto – BIOS

auto configure: Disable – Disabled ASPM

Extended Synch

Disabled

Enabled

If ENABLED allows generation of Extended

Synchronization patterns.

Link Training Retry

Disabled

Defines number of Retry Attempts software

will take to retrain the link if previous training

attempt was unsuccessful.

Link Training Timeout

(uS)

100 (note1)

Defines number of Microseconds software

will wait before polling ´Link Training´ bit in

Link Status register. Value range from 1 to

100uS.

Unpopulated Links

Keep Link ON

Disable Link

In order to save power, software will disable

unpopulated PCI Express links, if this option

set to ´Disabled Link´.

Restore PCIe Registers

Enabled

Disabled

On non-PCI Express aware OS’s (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.

Note1: Use either digit keys to enter value or +/- keys to increase/decrease value. Don’t use mix of digit

keys and +/- keys.

BIOS - Advanced

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