Allow Voltage Overdrive for LVTTL/LVCMOS Input Pins

Specifies whether the Fitter allows input pins with LVTTL or LVCMOS I/O standards to be placed inside an I/O bank with a lower VCCIO voltage than the voltage specified by the pins. Overdriving the I/O bank results in higher leakage current, which can cause the design to not function as intended. This option is available for supported device (MAX II, and MAX V) families.