Power status register 2
| FLASH_RDY | Flash ready flag |
| REGLPS | Low-power regulator started |
| REGLPF | Low-power regulator flag |
| VOSF | Voltage scaling flag |
| PVDO | Power voltage detector output |
| PVMOUSB | USB supply voltage monitoring output flag |
| PVMODAC | VDDA monitoring output flag |