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DS90UB940-Q1: From LVCMOS/LVDS to mipi-csi2

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Replies: 3

Views: 39

Part Number: DS90UB940-Q1

Hi All,

I have a question about FPD-Link3 from LVCMOS/LVDS to mipi-csi2.

Connect DS90UB925-Q1 and DS90UB940-Q1 to convert from LVCMOS to mipi-csi2.
In this case, is RGB24-bit transmission possible?
I read  " GPIOx and D_GPIOx Pin Configuration " .
When using GPIO, RGB18bit transmission is possible.
Is it possible to use GPIO when input to RGB24bit?
Also, are there any other restrictions setting for connect LVCMOS to mipi-csi2?

I am also thinking about converting from LVDS to mipi-csi2.
In that case, connect DS90UB927-Q1 and DS90UB940-Q1.
Are there any restrictions on using GPIO with this configuration as well?

Best Regards,

  • Hello,

    No, for 925, GPIO is only available in 18bit mode. 

    For 927, you get four GPIOs in 24bit mode. 

    There's no D_GPIO support for either 925 or 927. 

    Best Regards,

    Charley Cai

  • In reply to Charley Cai:


    Thank you for your answer.

    In case of connecting with 925.
    Is 24-bit input possible when GPIO is not used?
    Or is it 18bit input regardless of GPIO usage?

    Best Regards,

  • In reply to Shuji Ishiwata:


    24 bits are possible when GPIO is not used. 

    Best Regards,

    Charley Cai