Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Fujitsu/MB9BF61xT/USBETHERCLK/UPCR7#0x0
USB/Ethernet-PLL Setting Register 7
USB/Ethernet-PLL control bit in Timer mode
https://github.com/cmsis-svd/cmsis-svd-data