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How do dm6467t vpif support hdtv through raw mode?

zhencheng liang
Intellectual 330 points

Hi,

I konw dm6467 vpif only support clock up to 99MHz.The following is an old post:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/99/p/6306/23763.aspx#23763

I want to use dm6467t vpif to capture a 1080p video through raw mode.

Dm6467t vpif can support clock up to 150MHz.

My idea is that 1080p60 clock is 74.25MHz,24bit/pix, I use the raw mode with 12bit width,use two clocks to

receive one pix.Is it possible?

 

zcliang

 

 

  • 0
    TI__Genius 14405 points

    just curious, why do you want to capture 1080p in raw mode, is it a sensor limitation? what's the output data format of the sensor?

    1080p60 pclk is 148.5MHz. 108030 or 1080I60 are 74.25MHz.

    zhencheng liang said:

    My idea is that 1080p60 clock is 74.25MHz,24bit/pix, I use the raw mode with 12bit width,use two clocks to

    If the sensor out raw data, this will be difficult. If it can output y/c muxed, this is doable, but then you can just receive it in standard BT1120 mode (unless the sensor doesn't output embedded sync).  

  • 0 in reply to Paul.Yin
    Intellectual 330 points

    Hi,Paul:

    I also wanted  to use sil9135 receive it BT1120 mode, but the sil9135 can not support idustrial temperature range.(Or could you recommend a idustrial chip use for 1080p receive?)

    So I would like to use fpeg to change the video into raw mode.

    <<<<1080p60 pclk is 148.5MHz. 108030 or 1080I60 are 74.25MHz.

    The raw mode only support to 1080I60, not 1080p60.Is it right?

    zcliang


  • 0 in reply to zhencheng liang
    TI__Genius 14405 points

    Zhencheng,

    I don't have a suitable HDMI receiver in mind, let's see what the others say.

    I don't understand the logic behind you trying to convert video into raw mode, please explain clearly. Regardless, raw mode supports a clock up to 150MHz, and up to 12 bit data, and 1080I60 requires a 148.5MHz clock on a Y/C muxed data bus.