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Quartus II Settings File Reference Manual - Altera

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Chapter 6: Fitter Assignments 6–177<br />

INIT_DONE_OPEN_DRAIN<br />

INIT_DONE_OPEN_DRAIN<br />

Type<br />

Specifies whether the Open-Drain feature on the INIT_DONE pin should be enabled or<br />

not.<br />

Using this feature decouples the voltage level of the INIT_DONE pin from V CCIO.<br />

A pull-up resistor must be connected to the pin when this feature is enabled.<br />

Boolean<br />

Device Support<br />

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

■ Arria V<br />

■ Cyclone V<br />

■ Stratix V<br />

Syntax<br />

set_global_assignment -name INIT_DONE_OPEN_DRAIN <br />

Example<br />

set_global_assignment -name init_done_open_drain on<br />

set_global_assignment -name init_done_open_drain off<br />

Default Value<br />

On<br />

See Also<br />

■ “ENABLE_INIT_DONE_OUTPUT” on page 6–110<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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