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DS90UB925Q-Q1: RGB888 connecting only 8 pin on RED for Testing

Mesut Sözüçok
Prodigy 30 points

Part Number: DS90UB925Q-Q1

Hi,

I have a general question regarding the RGB888 interface to DS90UB925Q , When I connect only the 8bit pins of Red. would this be enough to generate a picture on  DS90UB926Q  if  I have the Link and PCLK by  DE-Mode ?

kind regards
Mesut

  • 0
    TI__Mastermind 36180 points

    Hi Mesut,

    For timing, generally speaking, 926 will output HS/VS/DE signals as long as they were provided by the video source. But it doesn't necessarily require HS/VS signals to function, so it may be possible that the upstream video source is not sending HS/VS signals. For example, if the source is sending video with DE mode timing, then only the DE signal is used for generating the sync timing and HS/VS can be static low/high. For data, I believe you need all RGB 8bit to be passed through in order to work, since the PCLK will be set to the data rate for the entire RGB bits. 

    Regards,
    Fadi A.