E1000_CTRL_SWDPIN0
ctrl |= E1000_CTRL_SWDPIN0;
ctrl &= ~E1000_CTRL_SWDPIN0;
ctrl &= ~E1000_CTRL_SWDPIN0;
ctrl |= E1000_CTRL_SWDPIN0;
ctrl |= E1000_CTRL_SWDPIN0;
ctrl &= ~E1000_CTRL_SWDPIN0;
ctrl_reg |= E1000_CTRL_SWDPIN0 | E1000_CTRL_SWDPIN1;
ctrl &= ~E1000_CTRL_SWDPIN0;
ctrl |= E1000_CTRL_SWDPIN0;