Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Infineon/XMC1400/POSIF0/PRUN#0x0
RB=value1
CORDIC Coprocessor Run Bit Status
Run Bit
0 (value1): IDLE
1 (value2): Running
https://github.com/cmsis-svd/cmsis-svd-data