ID:169071 Too many output and bidirectional pins in I/O bank <name> assigned near VREF pin <name> (<name>) on device <name> -- no more than <number> output and bidirectional pins allowed near the VREF pin when voltage referenced pins are driving in, but there are potentially <number> pins driving out
CAUSE: You assigned output and bidirectional pins to the specified I/O bank near the specified VREF
pin. However, the number of pins 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
pin to be read incorrectly.
ACTION: Reassign some of the output and/or bidirectional pins to a different VREF
bank, or move all input pins to a different VREF
bank. To display I/O banks, open the Chip Planner and turn on I/O bank display IN the
Layers Settings
dialog box.