SLUUB65B May 2015 – December 2022
As the name suggests, the secure-memory authentication key is stored in the secure memory of the fuel gauge. If a secure-memory key has been established, that key can be used for authentication challenges ONLY if the data flash key is all 0s.
For example, Authen Key3 = Authen Key2 = Authen Key1 = Authen Key0 = 0x00000000.