Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Toshiba/M369/UDFS2/EP3STS#0x0
UDC3 EP3 Status
NUM_MF
T_TYPE
DIR
DISABLE
STATUS
TOGGLE
BUS_SEL
PKT_MODE
https://github.com/cmsis-svd/cmsis-svd-data