Hello Brett!
I have noticed strange behaviour of the mini board ADAU1701 in which the it doesn't do the writeback sequence everytime I do the RESET or re-power up. I believe the writeback circuit allows or triggers the WB pin so the sigma DSP writes the updated param data right after power down or reset.
I have found previous discussion http://ez.analog.com/message/23469#23469 saying the the writeback circuit layout has some errors. Is this already solved by now? I have purchased the mini board just two months ago in October 2013.
I want to study the writeback behaviour of the DSP with a master controller in the system modifying the DSP parameters and the DSP does the writeback to the EEPROM.
Thanks and regards,
Dan