| 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: | 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 Current Assignments floorplan and turn on Show I/O Banks. |
See also:
Assigning an Entity or Node to a Pin (Organized by Internal Rows/Columns)
Assigning Pins
Changing Assignments
Overview: Making Assignments
Overview: Working with Assignments in the Floorplan Editor
Showing Resource Usage
Showing the Current Assignments Floorplan
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