ST STM32WL55JC Reference Manual page 803

RM0453
Bit 0 CC1E: Capture/Compare 1 output enable
Note: On channels having a complementary output, this bit is preloaded. If the CCPC bit is
Table 180. Output control bits for complementary OCx and OCxN channels with break feature
Control bits
MOE bit OSSI bit OSSR bit CCxE bit CCxNE bit
1 X
0
0
1
1. When both outputs of a channel are not used (control taken over by GPIO), the OISx, OISxN, CCxP and CCxNP bits must
be kept cleared.
Note: The state of the external I/O pins connected to the complementary OCx and OCxN channels
depends on the OCx and OCxN channel state and the GPIO registers.
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.
set in the TIMx_CR2 register then the CC1E active bit takes the new value from the
preloaded bit only when a Commutation event is generated.
X 0 0
0 0 1
0 1 0
X 1 1
1 0 1
1 1 0
X X
0 0
0 1
1 0
X
1 1
OCx output state
Output disabled (not driven by the timer: Hi-Z)
OCx=0, OCxN=0
Output disabled (not driven
by the timer: Hi-Z)
OCx=0
OCxREF + Polarity
OCx=OCxREF xor CCxP
OCREF + Polarity + dead-
time
Off-State (output enabled
with inactive state)
OCx=CCxP
OCxREF + Polarity
OCx=OCxREF xor CCxP
Output disabled (not driven by the timer: Hi-Z).
Off-State (output enabled with inactive state)
Asynchronously: OCx=CCxP, OCxN=CCxNP (if BRK or
BRK2 is triggered).
Then (this is valid only if BRK is triggered), if the clock is
present: OCx=OISx and OCxN=OISxN after a dead-time,
assuming that OISx and OISxN do not correspond to OCX
and OCxN both in active state (may cause a short circuit
when driving switches in half-bridge configuration).
Note: BRK2 can only be used if OSSI = OSSR = 1.
RM0453 Rev 2
Advanced-control timer (TIM1)
(1)
Output states
OCxN output state
OCxREF + Polarity
OCxN = OCxREF xor CCxNP
Output Disabled (not driven by
the timer: Hi-Z)
OCxN=0
Complementary to OCREF (not
OCREF) + Polarity + dead-time
OCxREF + Polarity
OCxN = OCxREF x or CCxNP
Off-State (output enabled with
inactive state)
OCxN=CCxNP
Table 180
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