Unused Pins Page (Device and Pin Options Dialog Box)

You open this page by clicking Unused Pins in the Device and Pin Options dialog box in the Device dialog box.

Allows you specify the reserve state of all the unused pins on the device:

As input tri-stated —The pins are reserved as tri-state input pins.
As output driving ground —The pins are reserved as output pins and drive the ground signal.
As output driving an unspecified signal—The pins are reserved as output pins and drive any signal.
As input tri-stated with bus-hold circuitry —The pins are reserved as tri-state input pins with bus-hold circuitry.
As input tri-stated with weak pull-up —The pins are reserved as tri-state input pins with weak pull-up resistors.

This option is available for all Intel device families supported by the Intel^® Quartus^® Prime software. You can also reserve pins individually with the Pin Planner.