Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f0/STM32F0x8/CAN/CAN_MCR#0x0
CAN_MCR
INRQ
SLEEP
TXFP
RFLM
NART
AWUM
ABOM
TTCM
RESET
DBF
https://github.com/modm-io/cmsis-svd-stm32