Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F7x8/OTG_HS_HOST/OTG_HS_HCTSIZ13#0x0
OTG_HS host channel-13 transfer size register
Transfer size
Packet count
Data PID
https://github.com/cmsis-svd/cmsis-svd-data