7.1.2.1 Unique Device Identifier (UDID)

All PIC32AK1216GC41064 family devices are individually encoded during final manufacturing with a Unique Device Identifier (UDID). The UDID cannot be erased by a bulk erase command or any other user-accessible means. This feature allows for manufacturing traceability of Microchip devices in applications where this is a requirement. It may also be used by the application manufacturer for any number of things that may require unique identification, such as:

• Tracking the device
• Unique identifying number
• Unique security key

The UDID comprises four full 32-bit words. When taken together, these fields form a unique 128-bit identifier. The UDID is stored in read-only memory locations between 0x7F2BE0-0x7F2BEC in the device configuration space. Table 7-2 lists the addresses of the identifier words and shows their contents.