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Quartus II Settings File Reference Manual - Altera

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Chapter 6: Fitter Assignments 6–285<br />

RESERVE_ASDO_AFTER_CONFIGURATION<br />

RESERVE_ASDO_AFTER_CONFIGURATION<br />

Type<br />

Specifies how the ASDO pin should be used when the device is operating in user<br />

mode after configuration is complete. Depending on the current device and<br />

configuration scheme, the ASDO pin can be reserved as a regular I/O pin, as an input<br />

that is tri-stated, as an output that drives ground, or as an output that drives an<br />

unspecified signal. If this pin is reserved as a regular I/O pin, the ASDO pin can be<br />

used as an ordinary I/O pin after configuration.<br />

Enumeration<br />

Device Support<br />

■ As input tri-stated<br />

■ Use as regular IO<br />

This setting can be used in projects targeting the following device families:<br />

■ Arria GX<br />

■ Cyclone<br />

■ Cyclone <strong>II</strong><br />

■ HardCopy <strong>II</strong><br />

■ Stratix <strong>II</strong><br />

■ Stratix <strong>II</strong> GX<br />

Syntax<br />

set_global_assignment -name RESERVE_ASDO_AFTER_CONFIGURATION <br />

Example<br />

set_global_assignment -name RESERVE_ASDO_AFTER_CONFIGURATION "USE AS<br />

REGULAR IO"<br />

Old Names<br />

This variable also has the following name(s) in some earlier versions of the <strong>Quartus</strong> <strong>II</strong><br />

software:<br />

RESERVE_SDO_AFTER_CONFIGURATION<br />

June 2012 <strong>Altera</strong> Corporation <strong>Quartus</strong> <strong>Settings</strong> <strong>File</strong><br />

<strong>Reference</strong> <strong>Manual</strong>

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