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Ixiasoft
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Ixiasoft
14.4. Creating OCT Signals
In UniPHY-based designs, the OCT block is part of the IP core, so the design no longer requires these two ports. Instead, the UniPHY-based design requires two additional ports, oct_rup and oct_rdn (for Stratix III and Stratix IV devices), or oct_rzqin (for Stratix V devices). You must create these ports in the instantiating entity as input pins and connect to the UniPHY instance. Then route these pins to the top-level design and connect to the OCT RUP and RDOWN resistors on the board.
For information on OCT control block sharing, refer to “The OCT Sharing Interface” in this volume.