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RE: DM365 Bt.656 Output

Nasser Mohammadi
Guru* 93670 points

1). I understand DM365 can accept Bt.656 format video as input. In our application we need the same format(bt.656) as output as well.

2). Or can you please point me to a DSP that could input or output 656

3). Lastly, maybe a device that we can use to convert from RGB to 656.

Regards,,nasser

  • 0
    Guru 31670 points

    DM365 VPBE already supports BT.656 protocol. Check the VPBE document of DM36x.

  • 0 in reply to Renjith Thomas
    TI__Guru* 93670 points

    Thomas,

    We need to receive AND transmit BT.656 simultaneously. Is this possible? If yes what ports we would be using on DM365. I looked at the VBPE but i am not sure it was clear as to if we can do this operation.

    Regards,,nasser

  • 0 in reply to Nasser Mohammadi
    TI__Guru* 93670 points

    Thomas,

    I reviewed DM365 data sheet and based on the following statements it seems we do support simultaneous BT656 from the image sensor AND output to the LCD panel:

    The digital LCD controller supports the following features:

    Programmable Timing Generator

    Various Output Formats

    YCbCr 4:2:2 16-bit

    YCbCr 4:2:2 8-bit

    Parallel RGB 16/18/24-bit

    Serial RGB 8-bit

    EAV/SAV insertion

    Regards,,nasser

  • 0 in reply to Nasser Mohammadi
    Guru 31670 points

    Nasser,

    If you check the the data sheet's first page you'll see the features list of VPBE and VPFE.

    • Video Processing Subsystem
    – Front End Provides:
    • HW Face Detect Engine
    • Hardware IPIPE for Real-Time Image
    Processing
    – Resize Engine
    – Resize Images From 1/16x to 8x
    – Separate Horizontal/Vertical
    Control
    – Two Simultaneous Output Paths
    • IPIPE Interface (IPIPEIF)
    • Image Sensor Interface (ISIF) and CMOS
    Imager Interface
    • 16-Bit Parallel AFE (Analog Front End)
    Interface Up to 120 MHz
    • Glueless Interface to Common Video
    Decoders
    • BT.601/BT.656/BT.1120 Digital YCbCr
    4:2:2 (8-/16-Bit) Interface
    • Histogram Module
    • Lens distortion correction module (LDC)
    • Hardware 3A statistics collection module
    (H3A)

    – Back End Provides:

    • Hardware On-Screen Display (OSD)
    • Composite NTSC/PAL video encoder
    output
    • 8-/16-bit YCC and Up to 24-Bit RGB888
    Digital Output
    • 3 DACs for HD Analog Video Output
    • LCD Controller
    • BT.601/BT.656 Digital YCbCr 4:2:2
    (8-/16-Bit) Interface


    I hope its clear now.