Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f4/STM32F405/Ethernet_MAC/MACPMTCSR#0x0
Ethernet MAC PMT control and status register
PD
MPE
WFE
MPR
WFR
GU
WFFRPR
https://github.com/modm-io/cmsis-svd-stm32