Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F107xx/PWR/CSR#0x0
Power control register (PWR_CR)
Wake-Up Flag
STANDBY Flag
PVD Output
Enable WKUP pin
https://github.com/cmsis-svd/cmsis-svd-data