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AD7134 can't configure register

Category: Hardware
Product Number: AD7134

Hi 

We try to collect data via the AD7134, but found some problems during testing. In the circuit, we set

DCLKMODE=0,
DCLKIO=1.8V.
CLKSEL=0,
PIN/SEL=1.8v,
MODE=1.8v,
With the timing in the figure below we configured the registers of the ADC and then we read the values of some more registers. We found that the values in the registers were not what we had set and at the same time the value in the 0X02 register indicated that the device was incorrect. We also read other registers and the details are described in the table below.

And we has try the protocol in other Q&A,like:The sampling rate setting problem of AD7134 - Q&A - Precision ADCs - EngineerZone (analog.com)

Thanks.