SLUUB65B May 2015 – December 2022
The fuel gauge provides three security modes (FULL ACCESS, UNSEALED, and SEALED) that control data flash access permissions according to Table 17-1. The Data Flash column refers to those data flash locations that are accessible to the user. The Manufacturer Information column refers to the two 32-byte blocks.
Security Mode | Data Flash | Manufacturer Information |
---|---|---|
FULL ACCESS | RW | RW |
UNSEALED | RW | RW |
SEALED | None | R (A); RW (B) |
Although FULL ACCESS and UNSEALED modes appear identical, only the FULL ACCESS mode allows the fuel gauge to write access mode transition keys stored in the Security class.