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DS90UB964-Q1: When doing pattern test, the SOC log indicates FS loss

Part Number: DS90UB964-Q1

Dear team,

Recently my customer run pattern test on our 964, but OSC always reports FS loss error. The pattern code refers to our datasheet example. And the only difference is datatype. Our datasheet is RGB888, but the customer's datatype is YUV422 8bit. We set PGEN_CSI_DT to YUV422 8bit(0x1E) and keep other registers unchanged, but this fault still exists. I think we still need to change the PGEN_BAR_SIZE, but I am not very clear about below computation description. Below second picture is YUV422's packet data size. Could you please guide me how to compute the BAR SIZE according the packet data size?

Thanks & Best Regards,

Sherry