UR_SYNCH_FRAME
case UR_SYNCH_FRAME:
case UR_SYNCH_FRAME:
case UR_SYNCH_FRAME:
case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
case UR_SYNCH_FRAME:
case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
case UR_SYNCH_FRAME:
case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
case UREQ(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):