25.6.1.1 Enabling, Disabling, and Resetting

The LDO main voltage regulator is enabled after any Reset. The main voltage regulator (MAINVREG) can not be disabled, hence the Enable bit in the VREG register (VREG.ENABLE) must be set to one. The main voltage regulator output supply level is automatically defined by the performance level or the Sleep mode selected in the Power Manager module.

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