SLUUCO5A december 2022 – august 2023 BQ34Z100-R2
The BQ34Z100-R2 provides three security modes that control data flash access permissions according to Table 2-10. Public Access refers to those data flash locations specified in Chapter 7 that are accessible to the user. Private Access refers to reserved data flash locations used by the BQ34Z100-R2 system. Care should be taken to avoid writing to Private data flash locations when performing block writes in FULL ACCESS mode by following the procedure outlined in Section 2.2.36.1.
SECURITY MODE | DF—PUBLIC ACCESS | DF—PRIVATE ACCESS |
---|---|---|
BOOTROM | N/A | N/A |
FULL ACCESS | R/W | R/W |
UNSEALED | R/W | R/W |
SEALED | R | N/A |
Although FULL ACCESS and UNSEALED modes appear identical, FULL ACCESS mode allows the BQ34Z100-R2 to directly transition to BOOTROM mode and also write access keys. UNSEALED mode does not have these abilities.