Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/S6E2CC/MFS0/I2C_EIBCR#0x0
Extension I2C Bus Control Register
Bus error control bit
Serial output enabled bit
SCL output control bit
SDA output control bit
SCL status bit
SDA status bit
https://github.com/cmsis-svd/cmsis-svd-data