ID:169024 Following input pins may potentially conflict with the output or bidirectional pins

CAUSE: You assigned output and bidirectional pins near a VREF pin or you assigned some pins too close together. The number of pins either exceeds the limit for the VREF bank and can cause instability in the VREF voltage, which can then cause any inputs depending on that VREF to be read incorrectly, or the I/O bank draws a current that exceeds the maximum amount.

ACTION: Refer to the submessage(s) in the Messages window to determine which input pins may conflict with output or bidirectional pins. Reassign some of the output and/or bidirectional pins to a different VREF bank, move all input pins to a different VREF bank, reassign some pins to reduce the current density, or assign some pins to use an I/O standard with a lower current. To display I/O banks, open the Chip Planner and turn on I/O bank display IN the Layers Settings dialog box.