ST STM32G473 User Manual

General-purpose timers (TIM15/TIM16/TIM17) RM0440
1410/2126 RM0440 Rev 4
Bits 31:29 Reserved, must be kept at reset value.
Bit 28 BKBID: Break bidirectional
0: Break input tim_brk in input mode
1: Break input tim_brk in bidirectional mode
In the bidirectional mode (BKBID bit set to 1), the break input is configured both in input
mode and in open drain output mode. Any active break event asserts a low logic level on the
Break input to indicate an internal break event to external devices.
Note: This bit cannot be modified as long as LOCK level 1 has been programmed (LOCK bits
in TIM15_BDTR register).
Note: Any write operation to this bit takes a delay of 1 APB clock cycle to become effective.
Bit 27 Reserved, must be kept at reset value.
Bit 26 BKDSRM: Break disarm
0: Break input tim_brk is armed
1: Break input tim_brk is disarmed
This bit is cleared by hardware when no break source is active.
The BKDSRM bit must be set by software to release the bidirectional output control (open-
drain output in Hi-Z state) and then be polled until it is reset by hardware, indicating that the
fault condition has disappeared.
Note: Any write operation to this bit takes a delay of 1 APB clock cycle to become effective.
Bits 25:20 Reserved, must be kept at reset value.
Bits 19:16 BKF[3:0]: Break filter
This bit-field defines the frequency used to sample the tim_brk input signal and the length of
the digital filter applied to tim_brk. The digital filter is made of an event counter in which N
events are needed to validate a transition on the output:
0000: No filter, tim_brk acts asynchronously
0001: f
SAMPLING
=f
tim_ker_ck
, N=2
0010: f
SAMPLING
=f
tim_ker_ck
, N=4
0011: f
SAMPLING
=f
tim_ker_ck
, N=8
0100: f
SAMPLING
=f
DTS
/2, N=6
0101: f
SAMPLING
=f
DTS
/2, N=8
0110: f
SAMPLING
=f
DTS
/4, N=6
0111: f
SAMPLING
=f
DTS
/4, N=8
1000: f
SAMPLING
=f
DTS
/8, N=6
1001: f
SAMPLING
=f
DTS
/8, N=8
1010: f
SAMPLING
=f
DTS
/16, N=5
1011: f
SAMPLING
=f
DTS
/16, N=6
1100: f
SAMPLING
=f
DTS
/16, N=8
1101: f
SAMPLING
=f
DTS
/32, N=5
1110: f
SAMPLING
=f
DTS
/32, N=6
1111: f
SAMPLING
=f
DTS
/32, N=8
Note: This bit cannot be modified when LOCK level 1 has been programmed (LOCK bits in
TIM15_BDTR register).

ST STM32G473 Specifications

General

Brand	ST
Model	STM32G473
Category	Microcontrollers
Language	English