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Quartus II Settings File Reference Manual - Altera

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6–174 Chapter 6: Fitter Assignments<br />

INCREASE_OUTPUT_ENABLE_CLOCK_ENABLE_DELAY<br />

INCREASE_OUTPUT_ENABLE_CLOCK_ENABLE_DELAY<br />

Type<br />

Increases the propagation delay from the interior of the device to the clock enable<br />

input of an output enable register. This is an advanced option that should be used<br />

only after you compile a project, check the I/O timing, and determine that the timing<br />

is unsatisfactory. This option is ignored if it is applied to anything other than an I/O<br />

cell that has an output enable register with a clock enable signal. For detailed<br />

information on how to use this option, refer to the respective device family data sheet.<br />

Enumeration<br />

■ Large<br />

■ Off<br />

■ On<br />

■ Small<br />

Device Support<br />

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

■ Stratix<br />

■ Stratix GX<br />

Notes<br />

This assignment supports wildcards.<br />

Syntax<br />

set_instance_assignment -name INCREASE_OUTPUT_ENABLE_CLOCK_ENABLE_DELAY -<br />

to -entity <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 />

INCREASE_OUTPUT_ENABLE_CLOCK_ENABLE_DELAYR<br />

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

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

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