ST STM32G4 Series Reference Manual page 871

RM0440
Master update caused by a
repetition event following a
Master update caused by a
repetition event following a
counter reset (software or
due to HRTIM_SCIN)
Software triggered master
timer update
TIMy update caused by a
TIMy counter roll-over
TIMy update caused by a
TIMy repetition event
TIMy update caused by an
external event or a TIMy
compare (through a TIMy
TIMy update caused by
sources other than those
listed above
Repetition event following a
Repetition event following a
counter reset
Table 223. Update event propagation for a timer reset (continued)
Source
roll-over
reset)
in HRTIM_RSTyCR
roll-over
Timer reset
Software
Condition Propagation
MSTU = 1 in
HRTIM_TIMxCR
MREPU = 1 in
HRTIM_MCR
MSTU = 1 in
HRTIM_TIMxCR
MSWU = 1
in HRTIM_CR2
TyU = 1 in
HRTIM_TIMxCR
TyRSTU = 1 in
HRTIM_TIMyCR
TyU = 1 in
HRTIM_TIMxCR
TyREPU = 1 in
HRTIM_TIMyCR
TyU = 1 in
HRTIM_TIMxCR
TyRSTU = 1 in
HRTIM_TIMyCR
EXTEVNTn or
CMP4/2
TyU = 1 in
HRTIM_TIMxCR
TxREPU = 1 in
HRTIM_TIMxCR
TxRSTU = 1 in
HRTIM_TIMxCR
TxSWU in
HRTIM_CR2
RM0440 Rev 1
High-resolution timer (HRTIM)
Comment
Yes
No
All software update bits
(TxSWU) are grouped in the
No HRTIM_CR2 register and can
be used for a simultaneous
update
Yes
Yes
Yes
No
Yes
No
Propagation would result in a
No lock-up situation (reset causing
an update causing a reset)
No
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