comparator control and status register
| PU10K | 10 kO pull-up resistor |
| PU400K | 400 kO pull-up resistor |
| PD10K | 10 kO pull-down resistor |
| PD400K | 400 kO pull-down resistor |
| CMP1EN | Comparator 1 enable |
| SW1 | SW1 analog switch enable |
| CMP1OUT | Comparator 1 output |
| SPEED | Comparator 2 speed mode |
| CMP2OUT | Comparator 2 output |
| VREFOUTEN | VREFINT output enable |
| WNDWE | Window mode enable |
| INSEL | Inverted input selection |
| OUTSEL | Comparator 2 output selection |
| FCH3 | Select GPIO port PA3 as fast ADC input channel CH3. |
| FCH8 | Select GPIO port PB0 as fast ADC input channel CH8. |
| RCH13 | Select GPIO port PC3 as re-routed ADC input channel CH13. |
| CAIE | Channel Acquisition Interrupt Enable / Clear |
| CAIF | Channel acquisition interrupt flag |
| TSUSP | Suspend Timer Mode |