http://elinux.org/Embedded_Open_Modular_Architecture/EOMA-68#Requirements_fo...
i've updated the specification to reflect what's actually been deployed on the flying squirrel pcb. apologies but i'd read the AT24C64 datasheet incorrectly: the "1" in the 8-bit MSB of an I2C address is not counted in the address so i'd read it as "0xA2" when it should be "0x51".
apologies but all boards currently being designed will need to update schematics to match accordingly.
l.