Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb0/STM32WB05/RRM_REG/VP_CPU_CMD_BUS#0x0
VP_CPU_CMD_BUS register
command number
CPU Virtual port command request:
https://github.com/modm-io/cmsis-svd-stm32