Quartus II Settings File Reference Manual - Altera

2–14 Chapter 2: Pin & Locations Assignments
RESERVE_PIN
RESERVE_PIN
Type
Reserves the pin in one of the following seven states:
■ As an input that is tri-stated
■ As an output that drives ground
■ As an output that drives VCC
■ As an output that drives an unspecified signal
■ As SignalProbe output
■ As a voltage reference (VREF)
■ As bidirectional
The As VREF setting is not appropriate for all device families. For more information
about V REF support, refer to the device data sheet.
Enumeration
■ As SignalProbe output
■ As VREF
Device Support
■ As bidirectional
■ As input tri-stated
■ As output driving VCC
■ As output driving an unspecified signal
■ As output driving ground
This setting can be used in projects targeting any Altera device family.
Syntax
set_instance_assignment -name RESERVE_PIN -to
set_global_assignment -name RESERVE_PIN
Old Names
This variable also has the following name(s) in some earlier versions of the Quartus II
software:
RESERVED_PIN
Quartus Settings File June 2012 Altera Corporation
Reference Manual