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DS90UB954-Q1: Two lane operation

Part Number: DS90UB954-Q1


Hi Team,

We are connecting FPD link III camera to RIN0+ & RIN0-  of the chip ,so we have a few queries:

1)Based on certain limitations on the processor side so we have to connect only two lanes of the CSI-2 output.Need confirmation on whether this is possible.

2)If only two lanes are connected CSI_D0P/N & CSI_D1P/N which clock lines are to be considered.CSI_CLKOP/N or CSI_CLK1P/N?

3)Is CSI_CTL Register[5:4] setting alone enough for the deserialiser to operate in CSI-2 two lane mode or any other hardware settings are to be considered?

Please let us know your suggestions on this at the earliest.

Thanks,

Bharath

  • Hello Bharath,

    Two lane mode is a valid configuration for this device. Please use CSI_D0/PN, CSI_D1P/N, and CSI_CLK0P/N. The register setting in CSI_CTL is all that is needed to change the lane count. There is no additional HW needed

    Best Regards,

    Casey