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Can DM648 Support 12-bit Raw Data Input from Image Sensor?

Jeffrey Yu57354
Prodigy 100 points

Other Parts Discussed in Thread: TMS320DM648

as title.

  • 0
    Expert 1575 points

    Hi Jeffrey,

    have you seen that the device status of the DM648 has been set to "LIFEBUY" (http://www.ti.com/product/tms320dm648)? This means that it will be unavailable soon. If this is true than the question is not "can DM648 handle 12 bit input data" but "which other device can handle 12 bit input data". I'm really looking forward to get an answer from TI on that,

    bye,

    Thomas

  • 0 in reply to Radhesh Bhat
    Prodigy 100 points

    Hello Radhesh,

    I did read the guide several times and it only says DM648 support 8bit or 16bit input.

    I can not judge from the guide whether DM648 can support 12bit raw data input.

    if DM648 can, how to connect 12 of 16 input pins to external 12 bit input? MSB or LSB?

    thanks.

    Jeffrey Yu

  • 0 in reply to Jeffrey Yu57354
    Genius 4590 points

    Hi Jeffrey,

    I think you are right....even the CMODE in VCACTL register says only 

    2-0      CMODE         OF(value)       0-7h            Capture mode select bit.
                                        DEFAULT      0                   Enables 8-bit BT.656 mode. Not used.
                                        BT656B
                                        RAWB             2h                Enables 8-bit raw data mode. 8-bit TCI mode.
                                        YCB                4h                 Enables 16-bit Y/C mode. Not used.
                                        RAW16          6h                 Enables 16-bit raw mode. Not used.

    But I am not sure, by enabling RAW16, will it throw an error ( Say assuming 4 MSBs are zero and 12 bits out of 16 bits are valid). Have you tried this?