TIM alternate function option register 2
| BKINE | BRK BKIN input enable |
| BK2CMP1E | BRK2 COMP1 enable |
| BK2CMP2E | BRK2 COMP2 enable |
| BK2CMP3E | BRK2 COMP3 enable |
| BK2CMP4E | BRK2 COMP4 enable |
| BK2CMP5E | BRK2 COMP5 enable |
| BK2CMP6E | BRK2 COMP6 enable |
| BK2CMP7E | BRK2 COMP7 enable |
| BK2INP | BRK2 BKIN input polarity |
| BK2CMP1P | BRK2 COMP1 input polarity |
| BK2CMP2P | BRK2 COMP2 input polarity |
| BK2CMP3P | BRK2 COMP3 input polarity |
| BK2CMP4P | BRK2 COMP4 input polarity |
| OCRSEL | OCREF_CLR source selection |