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DS90UB953-Q1: 953/954, CSI bandwidth, does it including MIPI_CLK lane, how 953/954 handle MIPI CSI-2 clk lane data

Lin Sen
Intellectual 260 points
Part Number: DS90UB953-Q1

Hi,

In table6, page21 of 953 spec, there is a CSI bandwidth. For example, when 953 in my design is using sync.mode and Reference frequency is 26MHz, the CSI bandwidth is 26x128=3.328Gbps. My question is, does this bandwidth include MIPI CLK lane? If I am using a 4 data lane camera, what is the max. bandwidth of each lane? 3.328/4=832Mbps or 3.328/5=665.6Mbps? 

If MIPI CLK is not transmitting in forward channel, does it recover at 954 and output together with other 4 data lane?

Thank you and look forward to hearing from you soon.

/Sen

  • 0
    TI__Mastermind 30515 points

    hello,

    Please check the CSI2 spec., you can select 4lanes in your case, and each lane data rate is <=832Mbps@4lanes, this also is mentioned in d/s, and the total CSI2 bandwidth is 3.328Gbps as you mentioned.

    regarding the FC, the data rate is fixed as 26x160Mbps, and the clock is embedded into the serial bit, pls don't care for the clock transmission .

    regards,

    Steven