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Questions about software reset of AD5758

I have a question about the operation of the FAULT terminal when the software of AD5758 is reset.
After turning on the power, writing 0x15 to register 0x08 turned the FAULT pin to Low.
After that, when 0xAF51 was continuously written to 0x08, the FAULT terminal became High.

Is the operation of this FAULT terminal correct?

I would be grateful if you could reply.

Best Regards,