According to the Spartan-6 FPGA SelectIO Resources User Guide, it is possible to use LVDS_33 I/O on Bank 0 with VCCO set to +3.3V.
However, the XEM6010 user manual states:
[INDENT]“In order to use differential I/O standards with the Spartan-6, you must set the VCCO voltages for the appropriate banks to 2.5v according to the Xilinx Spartan-6 datasheet.”[/INDENT]
Is the XEM6010 manual incorrect? Or is there a reason why the XEM6010 does not support LVDS_33?