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AD9520-4 cannot load register values from EEPROM after reset

Hi Experts,

I'm using AD9520-4 in my circuit. I setup and write all registers into this chip by I2C bus.

And I follow "Writing to the EEPROM" instructions to program EEPROM and no error shown at Register 0xB01[0] or Register 0xB00[0].

However, the chip will never load EEPROM values into registers after power up or reset, can you help to suggest where to check or debug further?

The EEPROM pin is pulled to high thru 1K resistor.

Thank you.

Jack