GRETH_BD_WR
greth_read_bd(&rx_bd[GRETH_RXBD_NUM - 1].stat) | GRETH_BD_WR);
status |= GRETH_BD_WR;
status |= GRETH_BD_WR;
status |= GRETH_BD_WR;
status |= GRETH_BD_WR;
status |= GRETH_BD_WR;