SNLA435A September   2023  – January 2024 DS320PR1601 , DS320PR410 , DS320PR810

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Device Overview
  6. 3Intention of Eye Scan
    1. 3.1 An Introduction to Lane Margining
    2. 3.2 How Does Eye Scan Work?
    3. 3.3 Programming Steps for Manual Eye Scan Capture
    4. 3.4 Eye Scan Capture Registers
    5. 3.5 CTLE Sweep Result
    6. 3.6 Eye Scan DAC Range
  7. 4Eye Scan Applications
    1. 4.1 Eye Scan Application: PCIe Compliance
    2. 4.2 Eye Scan Application: System
  8. 5Eye Scan in SigCon Architect GUI
  9. 6Summary
  10. 7References
  11. 8Revision History

Abstract

This application note describes the Texas Instruments PCI Express Gen5.0 linear redriver family’s Eye Scan feature functionality. The intended audience for this document includes hardware engineers using Texas Instruments PCI-Express Gen5.0 linear redrivers, including DS320PR410, DS320PR810, and DS320PR1601. Eye Scan is intended to be used as a supplemental vertical eye quality monitoring tool. Eye Scan's convenience, low run-time, and non-invasive nature are beneficial when performing PCIe redriver tuning.