General-purpose timers (TIM15/TIM16/TIM17) RM0440
1440/2126 RM0440 Rev 4
Bits 31:14 Reserved, must be kept at reset value.
Bit 13 BKCMP4P: tim_brk_cmp4 input polarity
This bit selects the tim_brk_cmp4 input sensitivity. It must be programmed together with the
BKP polarity bit.
0: tim_brk_cmp4 input is active high
1: tim_brk_cmp4 input is active low
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bit 12 BKCMP3P: tim_brk_cmp3 input polarity
This bit selects the tim_brk_cmp3 input sensitivity. It must be programmed together with the
BKP polarity bit.
0: tim_brk_cmp3 input is active high
1: tim_brk_cmp3 input is active low
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bit 11 BKCMP2P: tim_brk_cmp2 input polarity
This bit selects the tim_brk_cmp2 input sensitivity. It must be programmed together with the
BKP polarity bit.
0: tim_brk_cmp2 input is active high
1: tim_brk_cmp2 input is active low
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bit 10 BKCMP1P: tim_brk_cmp1 input polarity
This bit selects the tim_brk_cmp1 input sensitivity. It must be programmed together with the
BKP polarity bit.
0: tim_brk_cmp1 input is active high
1: tim_brk_cmp1 input is active low
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bit 9 BKINP: TIMx_BKIN input polarity
This bit selects the TIMx_BKIN alternate function input sensitivity. It must be programmed
together with the BKP polarity bit.
0: TIMx_BKIN input is active high
1: TIMx_BKIN input is active low
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bit 8 BKCMP8E: tim_brk_cmp8 enable
This bit enables the tim_brk_cmp8 for the timer’s tim_brk input. mdf_brkx output is ‘ORed’
with the other tim_brk sources.
0: tim_brk_cmp8 input disabled
1: tim_brk_cmp8 input enabled
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
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