Dear Ken,
We are talking about the small EEPROM on the FMC30RF. This EEPROM contains FMC product name, FMC serial number, VADJ and power requirements. It should not be altered by a customer, this would void the warranty.
It's not important to keep this module in your firmware. The FMC EEPROM content is mainly use by the FMC carriers to gather which voltage should be placed on the VADJ rail. This interface is used by 4DSP to program the EEPROM.
I hope having informed you sufficiently.
Best Regards,
Arnaud