ST STM32WL5 Series Reference Manual page 939

RM0453
Bit 2 CC1NE: Capture/Compare 1 complementary output enable
Bit 1 CC1P: Capture/Compare 1 output polarity
Note: This bit is not writable as soon as LOCK level 2 or 3 has been programmed (LOCK bits
Bit 0 CC1E: Capture/Compare 1 output enable
0: Off - OC1N is not active. OC1N level is then function of MOE, OSSI, OSSR, OIS1, OIS1N
and CC1E bits.
1: On - OC1N signal is output on the corresponding output pin depending on MOE, OSSI,
OSSR, OIS1, OIS1N and CC1E bits.
0: OC1 active high (output mode) / Edge sensitivity selection (input mode, see below)
1: OC1 active low (output mode) / Edge sensitivity selection (input mode, see below)
When CC1 channel is configured as input, both CC1NP/CC1P bits select the active
polarity of TI1FP1 and TI2FP1 for trigger or capture operations.
CC1NP=0, CC1P=0: non-inverted/rising edge. The circuit is sensitive to TIxFP1 rising edge
(capture or trigger operations in reset, external clock or trigger mode),
TIxFP1 is not inverted (trigger operation in gated mode or encoder
mode).
CC1NP=0, CC1P=1: inverted/falling edge. The circuit is sensitive to TIxFP1 falling edge
(capture or trigger operations in reset, external clock or trigger mode),
TIxFP1 is inverted (trigger operation in gated mode or encoder mode).
CC1NP=1, CC1P=1: non-inverted/both edges/ The circuit is sensitive to both TIxFP1 rising
and falling edges (capture or trigger operations in reset, external clock
or trigger mode), TIxFP1is not inverted (trigger operation in gated
mode). This configuration must not be used in encoder mode.
CC1NP=1, CC1P=0: this configuration is reserved, it must not be used.
in TIMx_BDTR register).
On channels that have a complementary output, this bit is preloaded. If the CCPC bit is
set in the TIMx_CR2 register then the CC1P active bit takes the new value from the
preloaded bit only when a Commutation event is generated.
0: Capture mode disabled / OC1 is not active (see below)
1: Capture mode enabled / OC1 signal is output on the corresponding output pin
When CC1 channel is configured as output, the OC1 level depends on MOE, OSSI,
OSSR, OIS1, OIS1N and CC1NE bits, regardless of the CC1E bits state. Refer to
for details.
General-purpose timers (TIM16/TIM17)
RM0453 Rev 1
Table 187
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