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Thread: [CYCLONE V] ALTLVDS_RX 12bit data word

  1. #1
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    Default [CYCLONE V] ALTLVDS_RX 12bit data word

    Hi!


    I'd like to use CYCLONE V (5CGXFC7D7F31C8). I have 32 LVDS channels that I want to serially shift into the device. Each word is 12b long. The problem is that ALTLVDS_RX megafunction allows only to choose 10b word. Is there any way to extend the size to 12b?



    Regards!

  2. #2
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    Default Re: [CYCLONE V] ALTLVDS_RX 12bit data word

    I think you can do 6b words at twice the clock rate, and then stitch them together in the fabric. (I believe the physical buffer in the I/O block is only 10b long, which is why it's limited...)

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