Timing Closure Techniques


Course Description

Learn how to apply UltraFast Design Methodology timing closure techniques and to achieve timing closure for a given design.

The emphasis of this course is on:

  • Applying initial design checks and reviewing timing summary and methodology reports for a design
  • Using baselining to verify that a design meets timing goals and applying the guidelines described in the baselining process
  • Identifying and resolving setup and hold violations
  • Reducing logic delays, net delays, and congestion in a design
  • Improving clock skew and clock uncertainty
  • Performing Pblock-based and super logic region (SLR)-based analysis to identify challenges and improve timing closure
  • Performing quality of results (QoR) assessments at different stages to improve the QoR score
  • Implementing Intelligent Design Runs (IDR) to automate analysis and timing closure for complex designs



Course Duration

2 days

Who Should Attend?

Software and hardware developers, system architects, and anyone who wants to learn about UltraFast Design Methodology timing closure techniques


  • Basic knowledge of FPGA and SoC architecture and HDL coding techniques.
  • Basic knowledge of the Vivado® Design Suite

Software Tools

  • Vivado Design Suite 2021.2


  • Architecture: UltraScale™ FPGAs and Versal® ACAPs

Skills Gained

After completing this comprehensive training, you will have the necessary skills to:

  • Describe UltraFast Design Methodology timing closure techniques
  • Resolve setup and hold violations
  • Reduce logic delay and net delay
  • Reduce congestion
  • Improve clock skew and clock uncertainty
  • Perform Pblock-based and SLR-based analysis
  • Identify clock domain crossings (CDC) and scenarios that require synchronization circuits
  • Perform QoR assessment at different stages and improve the QoR score
  • Implement Intelligent Design Runs (IDR)

Course Outline

Day 1

Static Timing Analysis

  • Introduction to Clocking and Static Timing Analysis (STA) Describes the basics of clock gating, static timing analysis, and setup and hold slack. {Lecture}

UltraFast Design Methodology Timing Closure

  • Introduction to UltraFast Design Methodology Timing Closure Provides an overview of the various stages of the UltraFast Design Methodology for timing closure. {Lecture}


  •  Baselining Demonstrates the performance baselining process, which is an iterative approach to incrementally constrain a design and meet timing. {Lecture, Lab}

Design Analysis and Optimization

  • Setup and Hold Violation Analysis Covers what setup and hold slack are and describes how to perform input/output setup and hold analysis. {Lecture}
  • Reducing Logic Delay Describes how to optimize regular fabric paths and paths with dedicated blocks and macro primitives. {Lecture}
  • Reducing Net Delay Reviews different techniques to reduce congestion and net delay. {Lecture, Lab}

Day 2

Design Analysis and Optimization (Continue)

  • Improving Clock Skew Describes how to apply various techniques to improve clock skew. {Lecture}
  • Improving Clock Uncertainty Reviews various flows for improving clock uncertainty, including using parallel BUFGCE_DIV clock buffers, changing MMCM or PLL settings, and limiting synchronous clock domain crossing (CDC) paths. {Lecture, Lab}

Clock Domain Crossing (CDC)

  • Clock Domain Crossing (CDC) and Synchronization Circuits Explains what clock domain crossings (CDC) are and the scenarios that require synchronization circuits. {Lecture, Lab}

Report QoR

  • QoR Reports Overview Describes what quality of result (QoR) is and how to analyze the QoR reports generated by the Vivado IDE. {Lecture, Lab}

Design Runs

  • Intelligent Design Runs (IDR) Introduces Intelligent Design Runs (IDR), which are special types of implementation runs that use a complex flow to attempt to close timing. {Lecture, La


26 September 2022 - 27 September 2022

Cereslaan 24
5384 VT

€ 0,00
20 Xilinx Training Credits

Training brochure

Registration form

Registration on demand, please contact us.