Intel: In the compilation report, in the Fitter ⇒ Resource Section ⇒ All Package Pins section, there is a description of "GND+" or "GND*" in the PIN Name/Usage column. What does this mean?

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Intel: In the Fitter ⇒ Resource Section ⇒ All Package Pins item of the compilation report, the PIN Name/Usage column says “GND+” or “GND*”. What does this mean?

Quartus Prime

Shows how the Quartus II handled unused pins during compilation.
GND* : Connect to GND with unused I/O pins or leave open
GND+ : Connect to GND with an unused input-only pin
It is necessary to design the board according to this indication.

For information on the display contents other than the above, refer to the document Quartus II Beginner's Guide How to Read the Compiler Report .

Attributes of unused pins can be changed by Quartus II settings.
For information on how to change the settings, refer to the document Quartus II Getting Started Guide Device Unused Pin States and Their Handling.

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