DS80PCI102: Low power state ASPM L1.1/L1.2 Support

Ranganath Narayana

Prodigy 20 points

Part Number: DS80PCI102

We are using DS80PCI102 in one of our PCIe link.

The link is working fine with active states. However we have issues with low power states.

During Link training the link is not entering into Low power states (L1SS ie L1.1 and L1.2)

We wanted to know wheather the DS80PCI102 supports lower power states or not.

Host (PCIe) --> Repeater1 --> Cable 2M --> Repeater2 --> DUT(PCIe)

Thanks

Ranga

over 7 years ago

0 Ranganath Narayana over 7 years ago

Prodigy 20 points

Someone please resond as early as possible.

We will ahve to freeze the design at the earliest.

Thanks

Ranga

0 Lee Sledjeski over 7 years ago in reply to Ranganath Narayana

TI__Mastermind 43795 points

Hi Ranga,

The Repeaters do not support low power substates directly, they are not aware of the PCIe protocol. As long as they remain powered and active they should allow the system to transition back to L0 normally.

Regards,

Lee

0 Nasser Mohammadi over 7 years ago in reply to Lee Sledjeski

TI__Guru* 93570 points

Closing this E2E thread due to in-activity.

Regards,, Nasser

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DS80PCI102: Low power state ASPM L1.1/L1.2 Support