Why RX part of C5GT XCVRs (Transceivers) do not work.

Hi,

As I understand it, you observe some CV GT XCVR issue. If I understand you correctly, this happens in some of the boards while others are working fine. These boards are of the same design.

To ensure we are on the same page, just to check with you on the following:

1. Would you mind to further elaborate on your issue observations with the XCVR ie CDR lose lock, RX parallel output is incorrect?

2. Which XCVR channels ie duplex or RX only are having the issue?

3. What are the Native PHY status signals in Signaltap when issue occurs ie rx_ready, sync status, CDR lock status and etc

4. Are you performing loopback test? If yes, please help to share a high level block diagram on the test connection.

Please let me know if there is any concern. Thank you.

Best regards,

Chee Pin