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DS90UB935-Q1: CHKSUM_ERR register in CSI_ERR_STATUS (Address 0x5D)

Yuta Kurimoto
Genius 11615 points

Part Number: DS90UB935-Q1

Hello team,

I got a question from customer about CHKSUM_ERR register.

Q. Datasheet says the register Indicates a checksum error detected in the incoming data (uncorrectable). What is the meaning of "uncorrectable"?

Q. From the Figure 7-3, the CSI-2 long packet consists of 3 elements(32bit PH, Packet Data, 16bit PF). Does the checksum only calculate the Packet data? or the checksum calculate both 32bit PH and Packet data?

Thanks,

Yuta Kurimoto