BYTES 32-47 - UUID
BYTE     48 - CUSTOM MHz
         49 - 8 MHz OSCCAL
         50 - 12 MHz OSCCAL
         51 - 12.8 MHz OSCCAL
         52 - 14.318181 MHz OSCCAL
         53 - 16 MHz OSCCAL   *Not available on ATTinyX4
         54 - 16.5 MHz OSCCAL *Not available on ATTinyX4

         62 - Unique ID, MSB
         63 - Unique ID, LSB

#include <avr/eeprom.h>

eeprom_read_byte((uint8_t*)p2) );