__w5100_write_direct
__w5100_write_direct(ndev, addr, data);
__w5100_write_direct(ndev, addr, data >> 8);
__w5100_write_direct(ndev, addr + 1, data);
__w5100_write_direct(ndev, addr, *buf++);
__w5100_write_direct(ndev, W5100_IDM_DR, data >> 8);
__w5100_write_direct(ndev, W5100_IDM_DR, *buf++);