Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F100xx/UART4/CR2#0x0
Control register 2
Address of the USART node
lin break detection length
LIN break detection interrupt enable
STOP bits
LIN mode enable
https://github.com/cmsis-svd/cmsis-svd-data