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TI Home » TI E2E Community » Support Forums » Interface » High Speed Interface » High Speed Interface Forum » 65LVPE504 PCIe re-driver polarity reversal
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65LVPE504 PCIe re-driver polarity reversal

This question is not answered
John Wilce
Posted by John Wilce
on Aug 07 2012 06:10 AM
Prodigy10 points

Hi

I am using the TI 65LVPE504 as a PCIe re-driver. My layout would benefit from being able to reverse the polarity of the lanes. My PCIe end point does not support polarity reversal but if I was to reverse the polarity on the input and output of the 65LVPE504 would this solve that problem?

However, I notice that the 65LVPE504 can perform receiver detection and this involves driving a common mode voltage on the outputs. I am concerned that this would stop me from reversing the polarity of the lanes.

Thank you

Regards

John

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  • ELIAS VILLEGAS
    Posted by ELIAS VILLEGAS
    on Aug 07 2012 16:32 PM
    Mastermind22945 points

    Hello John,

    We are reviewing this question and we'll reply soon.

    Regards.

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  • ELIAS VILLEGAS
    Posted by ELIAS VILLEGAS
    on Aug 09 2012 14:19 PM
    Mastermind22945 points

    Hello John,

    We have reviewed your question and unfortunately the LVPE504 is not bi-directional, so you can not do lane inversion, it only supports line polarity inversion.

    Regards.

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