Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/S6E1A1/MTB_DWT/FCT#0x0
MTB_DWT Function Register
Enable MTB_DWT start MTB function bits
Enable MTB_DWT stop MTB function bits
Data size start bits
Data size stop bits
https://github.com/cmsis-svd/cmsis-svd-data