VROFF=NO_EFFECT, XTALSEL=NO_EFFECT
Supply Controller Control Register
| VROFF | Voltage Regulator Off 0 (NO_EFFECT): no effect. 1 (STOP_VREG): if KEY is correct, asserts the vddcore_nreset and stops the voltage regulator. |
| XTALSEL | Crystal Oscillator Select 0 (NO_EFFECT): no effect. 1 (CRYSTAL_SEL): if KEY is correct, switches the slow clock on the crystal oscillator output. |
| KEY | Password 165 (PASSWD): Writing any other value in this field aborts the write operation. |