Intel® Agilex™ General-Purpose I/O and LVDS SERDES User Guide

ID 683780
Date 10/29/2021
Public

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5.1.3. OCT Calibration Block Requirement

If you enable OCT calibration, you must calibrate the I/Os within the same I/O lane using the same OCT calibration block.

In the Intel® Quartus® Prime Settings File (.qsf), specify the following RZQ grouping assignment to assign an RZQ pin to an I/O pin. The Fitter groups all the pins that are assigned to the same RZQ pin and create an OCT block to calibrate the I/O pins: set_instance_assignment -name RZQ_GROUP oct_rzq_in -to output_pin.

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