Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Infineon/XMC4300/ETH0/MMC_CONTROL#0x0
MMC Control Register
Counters Reset
Counters Stop Rollover
Reset on Read
MMC Counter Freeze
Counters Preset
Full-Half Preset
Update MMC Counters for Dropped Broadcast Frames
https://github.com/cmsis-svd/cmsis-svd-data