Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f7/STM32F769/Ethernet_MAC/MACSR#0x0
Ethernet MAC interrupt status register
PMTS
MMCRS
MMCTS
TSTS
https://github.com/modm-io/cmsis-svd-stm32