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Quartus II Settings File Reference Manual - Altera

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Chapter 6: Fitter Assignments 6–37<br />

CLOCK_TO_OUTPUT_DELAY<br />

CLOCK_TO_OUTPUT_DELAY<br />

Type<br />

Specifies the propagation delay to the output or bidirectional pin from the output<br />

register implemented in an I/O cell. This is an advanced option that should be used<br />

only after you have compiled a project, checked the I/O timing, and determined that<br />

the timing is unsatisfactory. For detailed information on how to use this option, refer<br />

to the data sheet for the device family. This option is off by default. This option is<br />

ignored if it is applied to anything other than an output or bidirectional pin.<br />

Integer<br />

Device Support<br />

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

■ Arria GX<br />

■ Arria <strong>II</strong> GX<br />

■ Cyclone <strong>II</strong><br />

■ Cyclone <strong>II</strong>I<br />

■ Cyclone <strong>II</strong>I LS<br />

■ Cyclone IV E<br />

■ Cyclone IV GX<br />

■ HardCopy <strong>II</strong><br />

■ Stratix <strong>II</strong><br />

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

Notes<br />

This assignment supports wildcards.<br />

Syntax<br />

set_instance_assignment -name CLOCK_TO_OUTPUT_DELAY -to -entity<br />

<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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