Figure 259. Output Redirection - ST STM32WL5 Series Reference Manual

RM0453
The following procedure must be followed to re-arm the protection after a break event:
•
The BKDSRM bit must be set to release the output control
•
The software must wait until the system break condition disappears (if any) and clear
the SBIF status flag (or clear it systematically before re-arming)
•
The software must poll the BKDSRM bit until it is cleared by hardware (when the
application break condition disappears)
From this point, the break circuitry is armed and active, and the MOE bit can be set to re-
enable the PWM outputs.
Other break inputs
Bidirectional
Break I/O

Figure 259. Output redirection

Peripheral
break sources
AF input
AF
(active low)
controller
AF output
(open drain)
Vss
MOE
General-purpose timers (TIM16/TIM17)
System break request
BKIN inputs from
Application break requests
AF controller
Bidirectional
mode control logic
BKBID BKBDSRM
RM0453 Rev 1
SBIF flag
Software break
requests: BG
BKE
BKP
System break request
BRK request
BIF flag
BRK
request
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