Tool/software:
Hello,
We are designing a BLE based product using CC2642R. During the production we need a unique ID which can differentiate between 2 different CC2642R controllers. Can anyone suggest such the name of the register which stores such a unique ID which cannot be changed by any means and only be read by the program.
While reading the technical reference manual "CC13x2, CC26x2 SimpleLink Wireless MCU", I came across two such registers: 
MAC_15_4_n and MAC_BLE_n in FCFG
My question here is that: are these 2 registers unique for each cc2642r device and cannot be changed ? Or is there any other register which stores unique id of each controller.
Because i also came across USER_ID register in FCFG region
