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CDCEL925: reg 09, 00 was written but 01 was read

Part Number: CDCEL925
Other Parts Discussed in Thread: CLOCKPRO

We meet one issue for CDCEL925 that, some of our chips do not work on our board, the log shows as followed

PIPE:LRT: External PLL on I2C reg 09, 00 was written  but 01 was read
PIPE:LRT: Assertion failed in function CDCELConfigure 

most of the times when we replace the cdcel925 chip , the system works again, but its not SMT issue we sure. And some chips shows that some times works and some times not work.

The driver code was made by ClockPro Software ,we read the spec and we found that reg 09 was reserved , we 'd like to know how to solve this.Thanks