The XAUI v10.2 GUI does not correctly restrict the selection of the 20G data rate and non 802.3 State Machines. Currently, it shows these options selectable for all devices, but this is not correct.
For Virtex-4 and 7 Series devices, the 802.3 State Machines should be selected and grayed out. There should not be the option to deselect the 802.3 State Machines.
The 20G DXAUI option should only be selectable for Virtex-6 -3 speed grade devices and 7-Series -2 and -3 speed grade devices.