A logic option that 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 a SignalProbe output
- as a voltage reference (VREF)
- as a bidirectional pin
This option is available for all Altera devices.
Note:
The "as VREF" setting is not appropriate for all device families. Refer to the device family data sheet for information on VREF support.
 Scripting
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Keyword:reserve_pin Settings:"as input tri-stated" "as output driving ground" "as output driving vcc" "as output driving an unspecified signal" "as VREF" "as signalprobe output" "as bidirectional" "none" *default |