Power control register 4
| WP1 | Wakeup pin WKUP1 polarity  |  
| WP2 | Wakeup pin WKUP2 polarity  |  
| WP3 | Wakeup pin WKUP3 polarity  |  
| WP4 | Wakeup pin WKUP4 polarity  |  
| WP5 | Wakeup pin WKUP5 polarity  |  
| WP6 | WKUP6 wakeup pin polarity  |  
| VBE | VBAT battery charging enable  |  
| VBRS | VBAT battery charging resistor selection  |