ROMCFG Write Mode

The ROMCFG Write mode (WROMCFG) enables writing to the ROMCFG row in the CFM section. Writing to this row is, with one exception, limited to DAL == 2 or SYSINIT privileges.

The NVM Lock Region Write command (WLOCKREGION) enables writing to the ROMCFG.NVMLOCKREGION word. This allows the default states for the region lock bits in the LOCK register to be changed. Writing to this word can be done at any DAL, without any special privileges.