OCT Intel® FPGA IP User Guide

ID 683708
Date 7/03/2019
Public

OCT Block

The OCT block is a component that generates calibration codes to terminate the I/Os.

During calibration, the OCT matches the impedance seen on the external resistor through the rzqin port. Then, the OCT block generates two 16-bit calibration code words—one word calibrates the series termination and the other word calibrates the parallel termination. A dedicated bus sends the words serially to the OCT logic.