2.1 User ID Locations
A user may store identification information (User ID) in four locations. The User ID locations are mapped to 8000h - 8003h. Each location is 14 bits in length. Code protection has no effect on these memory locations. Each location may be read with or without code protection enabled.
If the ICSP interface of the device has been disabled using
the Programming and Debugging Interface Disable
(PDID) feature on this device
(ICSPDIS =
0), the User ID information
stored in these memory locations will no longer be
accessible and can no longer be read.