RM0444 Rev 5 619/1390
RM0444 Advanced-control timer (TIM1)
624
21.4.28 TIM1 Alternate function register 2 (TIM1_AF2)
Address offset: 0x64
Reset value: 0x0000 0001
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Res. Res. Res.
BK2
CMP3
P
BK2
CMP2
P
BK2
CMP1
P
BK2
INP
Res. Res. Res. Res. Res.
BK2
CMP3E
BK2
CMP2E
BK2
CMP1E
BK2INE
rw rw rw rw rw rw rw rw
Bits 31:13 Reserved, must be kept at reset value.
Bit 12 BK2CMP3P: BRK2 COMP3 input polarity
This bit selects the COMP3 input sensitivity. It must be programmed together with the BK2P
polarity bit.
0: COMP3 input polarity is not inverted (active low if BK2P=0, active high if BK2P=1)
1: COMP3 input polarity is inverted (active high if BK2P=0, active low if BK2P=1)
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Note: This bit is available on STM32G0B1xx and STM32G0C1xx salestypes only), reserved
otherwise.
Bit 11 BK2CMP2P: BRK2 COMP2 input polarity
This bit selects the COMP2 input sensitivity. It must be programmed together with the BK2P
polarity bit.
0: COMP2 input polarity is not inverted (active low if BK2P=0, active high if BK2P=1)
1: COMP2 input polarity is inverted (active high if BK2P=0, active low if BK2P=1)
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bit 10 BK2CMP1P: BRK2 COMP1 input polarity
This bit selects the COMP1 input sensitivity. It must be programmed together with the BK2P
polarity bit.
0: COMP1 input polarity is not inverted (active low if BK2P=0, active high if BK2P=1)
1: COMP1 input polarity is inverted (active high if BK2P=0, active low if BK2P=1)
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bit 9 BK2INP: BRK2 BKIN2 input polarity
This bit selects the BKIN2 alternate function input sensitivity. It must be programmed
together with the BK2P polarity bit.
0: BKIN2 input polarity is not inverted (active low if BK2P=0, active high if BK2P=1)
1: BKIN2 input polarity is inverted (active high if BK2P=0, active low if BK2P=1)
Note: This bit can not be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIMx_BDTR register).
Bits 8:4 Reserved, must be kept at reset value.
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