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DS90UH927 Rx Lock detect

Ryuuichi machida
Guru 12695 points

Hi expert,

I have question about "Rx Lock detect".

According to datasheet of "DS90UH927", serializer have register to detect "Rx Lock"(Bitfield is Rx LOCK DET) status.

However, it seems that this function can be used when HDCP is enabled.

Is there any register in serializer to detect "Rx Lock" status when HDCP is disabled ?

Best Regards,

Machida

  • 0
    TI__Genius 14015 points
    Hi Machida,

    Are you physically testing this? I haven't done that myself but my understanding is that the bit should still work when HDCP is enabled.

    Thanks,
    Jason
  • 0 in reply to Jason Blackman
    Guru 12695 points
    Hi Jason,

    Thank you for your reply.
    >Are you physically testing this?
    My customer try to operate DS90UH927 as selializer w/ DS90UH302 as deserializer.
    But I'm not sure excatly what they did..

    >I haven't done that myself but my understanding is that the bit should still work when HDCP is enabled.
    OK. I understood.
    So, when HDCP is disabled, there is no register which can detect/confirm Rx lock status on "DS90UH927".
    Is my understanding correct ?

    Best Regards,
    Machida