About EEPROM of CDCE925

Hello Satoshi-san,

regarding your questions:

・Which setting data is priority given as for EEPROM or Control Register?

The control registers have priority and are used by the device. The EEPROM acts as storage when the device lacks power.

・Please let me know the boot time of reading setting data from EEPROM.

The load time of settings from the internal EEPROM into the control registers is negligible compared to the bits taking effect and seen at the outputs of the device. The time required to get a crystal to oscillation and the PLL to lock and provide the generated clock to the outputs can take significantly more time than loading the EEPROM when powering the device.

・The timing which set　up "Offset:06h and Bit:0" are last, is it right?

Yes, you are correct. When you set the EEWRITE bit all the control register contents will be copied to the internal EEPROM. You can observe the write operation using the EEPIP bit (in offset 0x01).

Best regards,

Patrick