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smile123's avatar
smile123
Icon for Occasional Contributor rankOccasional Contributor
2 years ago
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arria 10 use transciever phy ip

hi,everyone,i have a issue about transciever phy ip,as follows: the phy ip is 2 recieve channel，but the rx_is_lockedtoref signal of ch1 is unstable, ch0 is ok. At the same time,i have a ph...
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  • ZiYing_Intel's avatar
    ZiYing_Intel
    2 years ago

    Hi smile123,


    When CDR is in locked to data mode, the status of rx_is_lockedtoref is unknown; it can be high or low or toggling. You do not need to care about rx_is_lockedtoref when rx_is_lockedtodata is high.


    Regards,

    zying


FvM's avatar
FvM
Icon for Super Contributor rankSuper Contributor
2 years ago

Hi,
you agree that you are not giving much info about your design?
As a starter question, does your design meet timing? Do you see any warnings, e.g. related to PLL usage?