Quartus II Settings File Reference Manual - Altera

6–284 Chapter 6: Fitter Assignments
RESERVE_ALL_UNUSED_PINS_WEAK_PULLUP
RESERVE_ALL_UNUSED_PINS_WEAK_PULLUP
Type
Reserves all unused pins on the target device in one of 5 states: as inputs that are tristated,
as outputs that drive ground, as outputs that drive an unspecified signal, as
input tri-stated with bus-hold, or as input tri-stated with weak pull-up.
Enumeration
Device Support
■ As input tri-stated
■ As input tri-stated with bus-hold
■ As input tri-stated with weak pull-up
■ As output driving an unspecified signal
■ As output driving ground
This setting can be used in projects targeting the following device families:
■ Arria II GX
■ Arria II GZ
■ Arria V
■ Cyclone III
■ Cyclone III LS
■ Cyclone IV E
■ Cyclone IV GX
■ Cyclone V
■ HardCopy III
■ HardCopy IV
■ Stratix III
■ Stratix IV
■ Stratix V
Notes
This assignment is included in the Fitter report.
Syntax
set_global_assignment -name RESERVE_ALL_UNUSED_PINS_WEAK_PULLUP
Default Value
As input tri-stated with weak pull-up
Quartus Settings File June 2012 Altera Corporation
Reference Manual