Mysteries with MMCs on new T2 boards. Chips are marked 3A1512 but ID as 3A0512 according to Wu.

Chip marking:

  32UC3A1512-U
  1114 D5CQ5.1

• Atmel product page – available only in TQFP100 which is what we have
• avr_mismatch.gif – screen capture of error when we try to ID the device with AVR Studio 5.1

-- EricHazen - 30 Apr 2013