ST STM32G4 Series Reference Manual page 893

RM0440
Table 230. Effect of sync event versus timer operating modes (continued)
SYNC
Operating mode
RSTx
0
Single-shot
retriggerable
1
0
Continuous mode
1
When a synchronization reset event occurs within the same f
event, this reset is postponed to a programmed period event (since both events are causing
a counter roll-over). This applies only when the high-resolution is active (CKPSC[2:0] < 5).
SYNC
Behavior following a SYNC reset or start event
STRTx
The counter start is effective only if the counter is not started or period is
elapsed. Any synchronization event occurring after counter start has no
effect.
1
A start occurring when the counter is stopped at the period value resets the
counter. A reset request clears the counter but does not start it (the counter
can solely be started by the synchronization). A reset occurring during
counting is taken into account (as during regular retriggerable mode).
The reset from HRTIM_SCIN is taken into account as any HRTIM's timer
counter reset from internal events and is starting or re-starting the timer
counting.
X
When multiple reset requests are selected, the first arriving request is taken
into account.
The timer is enabled (MCEN or TxCEN bit set) and is waiting for the
synchronization event to start the counter. Any synchronization event
1 occurring after the counter start has no effect (the counter can solely be
started by the synchronization). A reset request clears the counter but does
not start it.
The reset from HRTIM_SCIN is taken into account as any HRTIM's timer
counter reset from internal events and is starting or re-starting the timer
X
counting. When multiple reset requests are selected, the first arriving
request is taken into account.
RM0440 Rev 1
High-resolution timer (HRTIM)
clock cycle as the period
HRTIM
893/2083
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