Intel® Stratix® 10 General Purpose I/O User Guide

ID 683518
Date 7/07/2021
Document Table of Contents

2.3.1. Programmable Output Slew Rate Control

You can specify the slew rate on a pin-by-pin basis because each I/O pin contains a slew rate control. The slew rate control affects both the rising and falling edges.

You can select between two slew rate settings, 1 and 0:

  • Fast slew rate (1)—provides high-speed transitions for high-performance systems. This is the default setting. If you enable on-chip termination (OCT), this setting is always used.
  • Slow slew rate (0)—reduces system noise and crosstalk but adds a nominal delay to the rising and falling edges.

Note: Intel recommends that you perform IBIS or SPICE simulations to determine the best slew rate setting for your specific application.

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