IXGBE_WUC
IXGBE_WRITE_REG(hw, IXGBE_WUC, IXGBE_WUC_PME_EN);
regs_buff[820] = IXGBE_READ_REG(hw, IXGBE_WUC);
IXGBE_WRITE_REG(hw, IXGBE_WUC, 0);