Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG11B/EFM32GG11B120F2048GQ64/CAN1/ERRCNT#0x0
Error Count Register
Transmit Error Counter
Receive Error Counter
Receive Error Passive
https://github.com/cmsis-svd/cmsis-svd-data