TRM_QUEUE_FULL
pDCB->DCBFlag &= ~TRM_QUEUE_FULL;
pDCB->DCBFlag |= TRM_QUEUE_FULL;
if ((pDCB->DCBFlag & TRM_QUEUE_FULL) || (bus_space_read_2(iot, ioh,
pDCB->DCBFlag |= TRM_QUEUE_FULL;
pDCB->DCBFlag |= TRM_QUEUE_FULL;