1.10 AT24MAC402 Serial EEPROM

The development board has an on-board 2-Kbit I²C serial EEPROM which is available for user applications. This serial EEPROM has a unique EUI-48, and 128-bit serial number. The unique number can be seen in the Microchip MPLAB Kit window or Atmel® Studio Xplained window after the kit has been plugged into the PC.

Users can change the device address using the solder pads on the board, but all address bits have been defaulted to one. Refer to schematics for additional information. For additional usage information of on this part, refer to the “AT24MAC402 and AT24MAC602 Data Sheet” available for download from the Hardware Features, or from the following location: http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8807-SEEPROM-AT24MAC402-602-Datasheet.pdf.

The following are the default address for the devices:

AT24MAC_I2C_EEPROM_ADDR 0b1010110 //0x56 (7 bit)

AT24MAC_I2C_EXTENDED_ADDR 0b1011110 //0x5E (7 bit)