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Jmk1's avatar
Jmk1
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1 year ago

Programmation of JHL9020R NVM

Hello,

We have designed a motherboard with JHL9020R TBT4 IC. In the datasheet and in the example of design, there is a reference to a Non Volatile Memory.

But the precise mappoing of the NVM is not provided. I also search for a tool that would enable NVM programming.

Can I have the NVM mapping and/or the related sw needed to program this NVM?

Regards

5 Replies

  • RandyT_Intel's avatar
    RandyT_Intel
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    1 year ago

    Hello Jmk1,


    I tried to check our database for information related to your inquiry, and here is what I found. I hope it helps!


    If you don't mind me asking, may I know the reason for your inquiry? Is this for a project, or are you just looking to test and try something?


    I've attached the resources below for your reference. Please feel free to visit them.


    Compatibility Information for Intel® Ethernet Network...

    Intel® Ethernet Controller X710/XXV710/XL710 Feature Support Matrix


    I look forward to hearing from you!


    Randy T.

    Intel Customer Support Technician


    • Jmk1's avatar
      Jmk1
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      1 year ago

      Hi Randy,

      It is is for a project. We designed a COM HPC module motherboard on which we have used the JHL9020R (the design of our motherboard is based on CONGATEC HPC motherboard, which uses an obsolete TBT IC).

      The motherboard is actually on my desk, waiting for validation of the TBT subsystem

      Regards

    • Jmk1's avatar
      Jmk1
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      1 year ago

      I followed the links provided. Unfortunately, it doesn't solve my problem. The JHL9020R is a Thunderbolt retimer, not an ethernet adapter.

      In the user's manual of the ic and on the design examples, there is a non volatile memory supposed to contain several configuration informations ( as I2C slave adresses..) .

      But the structure of the NVM is not described anywhere, with the functions of all the locations.

      Currently, I powered on the motherboard and it seems that the TBT IC was detected, but I don't know yet if it is fully operational (I still need to configure the Power Delivery IC to be sure of this).

      Anyway, knowing the NVM contents seems to be mandatory to me.

      Regards

  • RandyT_Intel's avatar
    RandyT_Intel
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    1 year ago

    Hi Jmk1,


    I will coordinate your requested information with our engineers. Please allow me some time to further research this particular request. If needed, I may reach out to a specific team with more expertise on this matter.


    I’ll keep you updated once I have their recommendations. Thank you for your patience!


    Randy T.

    Intel Customer Support Technician


  • Jmk1's avatar
    Jmk1
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    1 year ago

    Hi Randy,

    Any news concerning my request? I do need infos on this NVM, otherwise the chip cannot be used!

    Regards