Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32u5/STM32U575/OTG_FS/DVBUSDIS#0x0
This register specifies the VBUS discharge time after VBUS pulsing during SRP.
VBUSDT
https://github.com/modm-io/cmsis-svd-stm32