The ENABLE bit allows
to apply the different IDAU security configurations of the SECCTRL, SCFGB, SCFGA and
SCFGR registers.It is mandatory to disable the IDAU before modifying any of the IDAU
security configurations.
Important:
- SECCTRL.SCFGWEN must not be
cleared when the IDAU is disabled as it will lock the CTRL register, which will
prevent from enabling the IDAU and apply the new security configurations.
- Users must ensure when enabling
the IDAU, that the secure software code running out of the Flash BOOT region is
still entirely part of that region as no consistency checks are done on the new
applied security memory mapping.
| Value | Description |
|---|
| 0 |
The IDAU is disabled. The IDAU
security configurations of the SECCTRL, SCFGB, SCFGA and SCFGR registers can be
updated. |
| 1 |
The IDAU is enabled. The IDAU
security configurations are applied to the system. |
