SEL=LDO
VREG Control
| ENABLE | Enable  |  
| SEL | Voltage Regulator Selection in active mode 0 (LDO): LDO selection 1 (BUCK): Buck selection 2 (SCVREG): Switched Cap selection  |  
| STDBYPL0 | Standby in PL0  |  
| RUNSTDBY | Run during Standby  |  
| LPEFF | Low Power efficiency  |  
| VSVSTEP | Voltage Scaling Voltage Step  |  
| VSPER | Voltage Scaling Period  |