TXMIT_CONTROL_REG_W
bus_space_write_2(bst, bsh, TXMIT_CONTROL_REG_W, 0);
mctl = bus_space_read_2(bst, bsh, TXMIT_CONTROL_REG_W);
bus_space_write_2(bst, bsh, TXMIT_CONTROL_REG_W, mctl);
bus_space_write_2(bst, bsh, TXMIT_CONTROL_REG_W, 0);
bus_space_write_2(bst, bsh, TXMIT_CONTROL_REG_W, tmp);
bus_space_write_2(bst, bsh, TXMIT_CONTROL_REG_W, TCR_ENABLE);
bus_space_write_2(bst, bsh, TXMIT_CONTROL_REG_W,