TIM alternate function option register 1
| BKINE | BRK BKIN input enable |
| BKCMP1E | BRK COMP1 enable |
| BKCMP2E | BRK COMP2 enable |
| BKCMP3E | BRK COMP3 enable |
| BKCMP4E | BRK COMP4 enable |
| BKCMP5E | BRK COMP5 enable |
| BKCMP6E | BRK COMP6 enable |
| BKCMP7E | BRK COMP7 enable |
| BKINP | BRK BKIN input polarity |
| BKCMP1P | BRK COMP1 input polarity |
| BKCMP2P | BRK COMP2 input polarity |
| BKCMP3P | BRK COMP3 input polarity |
| BKCMP4P | BRK COMP4 input polarity |