Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb0/STM32WB05/RRM_REG/VP_CPU_SEMA_BUS#0x0
VP_CPU_SEMA_BUS register
semaphore priority: priority value (between 0 and 7) of the take request.
semaphore token request:
https://github.com/modm-io/cmsis-svd-stm32