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Manuel4's avatar
Manuel4
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12 months ago

Agilex 5 E-series 065A GTS PMA/FEC Direct PHY

We want to use an Agilex 5E device Group A to make a 4x25Gbps transceivers integrating RS-FEC.

When I use Quartus Pro 24.3, the only transceiver PHY is the GTS PMA/FEC Direct PHY Intel FPGA IP, and with that when FEC is enabled, only one PMA lane can be selected.

How can I set a 4x25Gbps transceiver with RS-FEC with the Agilex 5 E-Series device Group A ?

Thanks

Regards,

Manuel

11 Replies

  • Hi Manuel.


    When you select the RX Simplex setting for the PMA mode parameter, the Number of PMA lanes selection is limited to 1.

    May I know what your IP setting?


    Regards,

    Pavee


    • Manuel4's avatar
      Manuel4
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      Here my settings. I need 4 lanes with RS-FEC enabled.

  • Hi Manuel,


    Just wanted to check with you, is your concern has been addressed?

    If yes , kindly do let me know.


    Thank You


  • Hi,


    FEC in Agilex 5 doesn't support bonding and that is the reason we have limited to single lane for the FEC Direct.

    You may instantiate Multiple Single lane FEC designs and handle the Parallel Data handling for more than single channels.


    Regards,

    Pavee


    • Manuel4's avatar
      Manuel4
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      Thanks

      Do you have any example project file that instantiate multiple single lane FEC ?

  • Hi Manuel,


    Quick check, Have you or DFAE have filed IPS to Altera before for the same query?

    If yes, kindly filed a new IPS to get further support on this matter, that would be more efficient.


    I will check on the design availability but as far as I remember, we don't have much reference yet for Agilex5.


    Regards,

    Pavee


    • Manuel4's avatar
      Manuel4
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      Hi

      What do you mean with 'filed a new IPS' ?

  • Hello Manuel,


    For now we have limitation in Agilex5 where FEC in Agilex 5 doesn't support bonding and that is the reason we have limited to single lane for the FEC Direct. I tried to look for reference design but we don't have it ready yet. We would definitely feedback this and make it available in future.


    Regards,

    Pavee


  • Hello,


    We didn't hear from you since last update. If you have a new question, feel free to open a new thread to get the support from Altera experts.

    Otherwise, the community users will continue to help you on this thread.


    Regards,

    Pavee



    • Manuel4's avatar
      Manuel4
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      Hi

      Thanks for your help.

      Please advise me as soon as you have a reference design for my case.