Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h7/STM32H723/Ethernet_MAC/MACPOCR#0x0
PTP Offload control register
PTOEN
ASYNCEN
APDREQEN
ASYNCTRIG
APDREQTRIG
DRRDIS
DN
https://github.com/modm-io/cmsis-svd-stm32