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Quartus II Settings File Reference Manual - Altera

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6–166 Chapter 6: Fitter Assignments<br />

GXB_REFCLK_COUPLING_TERMINATION_SETTING<br />

GXB_REFCLK_COUPLING_TERMINATION_SETTING<br />

Type<br />

Allows the Compiler to configure the AC/DC coupling and on-chip termination<br />

(OCT) for a Stratix <strong>II</strong> GX gigabit transceiver block REFCLK input pin. Use DC coupling<br />

external termination value only with the HCSL I/O standard on the PCI-Express<br />

protocol. This option is ignored if it is applied to anything other than an input pin.<br />

Enumeration<br />

Device Support<br />

■ DC coupling external termination<br />

■ OCT 100 Ohms<br />

■ Use as regular IO<br />

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

■ Arria GX<br />

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

Notes<br />

This assignment supports wildcards.<br />

Syntax<br />

set_instance_assignment -name GXB_REFCLK_COUPLING_TERMINATION_SETTING -to<br />

-entity <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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