Intel® Arria® 10 Core Fabric and General Purpose I/Os Handbook

ID 683461
Date 9/29/2022
Public
Document Table of Contents

5.5.4.5. Differential Input RD OCT

All I/O pins and dedicated clock input pins in Intel® Arria® 10 devices support on-chip differential termination, RD OCT. The Intel® Arria® 10 devices provide a 100 Ω, on-chip differential termination option on each differential receiver channel for LVDS standards.

You can enable on-chip termination in the Intel® Quartus® Prime software Assignment Editor.

Figure 89. On-Chip Differential I/O Termination


Table 58.   Intel® Quartus® Prime Software Assignment Editor—On-Chip Differential TerminationThis table lists the assignment name for on-chip differential termination in the Intel® Quartus® Prime software Assignment Editor.
Field Assignment
To rx_in
Assignment name Input Termination
Value Differential

Alternatively, you can enable the on-chip differential I/O termination by adding the following assignment in your .qsf:

set_instance_assignment -name INPUT_TERMINATION DIFFERENTIAL -to <input pin name>

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