Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/S6E2CC/MFS0/CSIO_FCR1#0x0
FIFO Control Register 1
FIFO select bit
Transmit FIFO interrupt enable bit
Transmit FIFO data request bit
Received FIFO idle detection enable bit
Re-transmission data lost detect enable bit
https://github.com/cmsis-svd/cmsis-svd-data