Verification Academy

Search form

My Account Menu

  • Register
  • Log In
  • Topics
  • Courses
  • Forums
  • Patterns Library
  • Cookbooks
  • Events
  • More
  • All Topics
    The Verification Academy offers users multiple entry points to find the information they need. One of these entry points is through Topic collections. These topics are industry standards that all design and verification engineers should recognize. While we continue to add new topics, users are encourage to further refine collection information to meet their specific interests.

    • Languages & Standards

      • Portable Test and Stimulus
      • Functional Safety
      • Design & Verification Languages

    • Methodologies

      • UVM - Universal Verification Methodology
      • UVM Framework
      • UVM Connect
      • FPGA Verification
      • Coverage

    • Techniques & Tools

      • Verification IP
      • Simulation-Based Techniques
      • Planning, Measurement, and Analysis
      • Formal-Based Techniques
      • Debug
      • Clock-Domain Crossing
      • Acceleration
  • All Courses
    The Verification Academy is organized into a collection of free online courses, focusing on various key aspects of advanced functional verification. Each course consists of multiple sessions—allowing the participant to pick and choose specific topics of interest, as well as revisit any specific topics for future reference. After completing a specific course, the participant should be armed with enough knowledge to then understand the necessary steps required for maturing their own organization’s skills and infrastructure on the specific topic of interest. The Verification Academy will provide you with a unique opportunity to develop an understanding of how to mature your organization’s processes so that you can then reap the benefits that advanced functional verification offers.

    • Universal Verification Methodology (UVM)

      • Advanced UVM
      • Basic UVM
      • Introduction to UVM
      • UVM Connect
      • UVM Debug
      • UVMF - One Bite at a Time

    • Featured Courses

      • Introduction to ISO 26262
      • Introduction to DO-254
      • Clock-Domain Crossing Verification
      • Portable Stimulus Basics
      • Power Aware CDC Verification
      • Power Aware Verification
      • SystemVerilog OOP for UVM Verification

    • Additional Courses

      • Assertion-Based Verification
      • An Introduction to Unit Testing with SVUnit
      • Evolving FPGA Verification Capabilities
      • Metrics in SoC Verification
      • SystemVerilog Testbench Acceleration
      • Testbench Co-Emulation: SystemC & TLM-2.0
      • Verification Planning and Management
      • VHDL-2008 Why It Matters

    • Formal-Based Techniques

      • Formal Assertion-Based Verification
      • Formal-Based Technology: Automatic Formal Solutions
      • Formal Coverage
      • Getting Started with Formal-Based Technology
      • Handling Inconclusive Assertions in Formal Verification
      • Sequential Logic Equivalence Checking

    • Analog/Mixed Signal

      • AMS Design Configuration Schemes
      • Improve AMS Verification Performance
      • Improve AMS Verification Quality
  • All Forum Topics
    The Verification Community is eager to answer your UVM, SystemVerilog and Coverage related questions. We encourage you to take an active role in the Forums by answering and commenting to any questions that you are able to.

    • UVM Forum

      • Active Questions
      • Solutions
      • Replies
      • No Replies
      • Search
      • UVM Forum

    • SystemVerilog Forum

      • Active Questions
      • Solutions
      • Replies
      • No Replies
      • Search
      • SystemVerilog Forum

    • Coverage Forum

      • Active Questions
      • Solutions
      • Replies
      • No Replies
      • Search
      • Coverage Forum

    • Additional Forums

      • Announcements
      • Downloads
      • OVM Forum
  • Patterns Library
    The Verification Academy Patterns Library contains a collection of solutions to many of today's verification problems. The patterns contained in the library span across the entire domain of verification (i.e., from specification to methodology to implementation—and across multiple verification engines such as formal, simulation, and emulation).

    • Implementation Patterns

      • Environment Patterns
      • Stimulus Patterns
      • Analysis Patterns
      • All Implementation Patterns

    • Specification Patterns

      • Occurrence Property Patterns
      • Order Property Patterns
      • All Specification Patterns

    • Pattern Resources

      • Start Here - Patterns Library Overview
      • Whitepaper - Taking Reuse to the Next Level
      • Verification Horizons - The Verification Academy Patterns Library
      • Contribute a Pattern to the Library
  • All Cookbooks
    Find all the methodology you need in this comprehensive and vast collection. The UVM and Coverage Cookbooks contain dozens of informative, executable articles covering all aspects of UVM and Coverage.

    • UVM Cookbook

      • UVM Basics
      • Testbench Architecture
      • DUT-Testbench Connections
      • Configuring a Test Environment
      • Analysis Components & Techniques
      • End Of Test Mechanisms
      • Sequences
      • The UVM Messaging System
      • Other Stimulus Techniques
      • Register Abstraction Layer
      • Testbench Acceleration through Co-Emulation
      • Debug of SV and UVM
      • UVM Connect - SV-SystemC interoperability
      • UVM Versions and Compatibility
      • UVM Cookbook

    • Coding Guidelines & Deployment

      • Code Examples
      • UVM Verification Component
      • Package/Organization
      • Questa/Compiling UVM
      • SystemVerilog Guidelines
      • SystemVerilog Performance Guidelines
      • UVM Guidelines
      • UVM Performance Guidelines

    • Coverage Cookbook

      • Introduction
      • What is Coverage?
      • Kinds of Coverage
      • Specification to Testplan
      • Testplan to Functional Coverage
      • Bus Protocol Coverage
      • Block Level Coverage
      • Datapath Coverage
      • SoC Coverage Example
      • Requirements Writing Guidelines
      • Coverage Cookbook
  • All Events
    No one argues that the challenges of verification are growing exponentially. What is needed to meet these challenges are tools, methodologies and processes that can help you transform your verification environment. These recorded seminars from Verification Academy trainers and users provide examples for adoption of new technologies and how to evolve your verification process.

    • Upcoming & Featured Events

      • The Digital Twin: An Aerospace and Defense Revolution - March 9th
      • VIP solutions for Protocol and Memory Verification  - March 11th
      • Advance your Designs with Advances in CDC and RDC - March 23rd
      • Webinar Calendar

    • On Demand Seminars

      • The ABC of Formal Verification
      • I'm Excited About Formal...
      • 2020 Functional Verification Study
      • All On-Demand Seminars

    • Recording Archive

      • Improving Your SystemVerilog & UVM Skills
      • Should I Kill My Formal Run?
      • Visualizer Debug Environment
      • All Recordings

    • Conferences

      • DVCon 2020
      • DAC 2019
      • All Conferences

    • Mentor Learning Center

      • SystemVerilog Fundamentals
      • SystemVerilog UVM
      • View all Learning Paths
  • About Verification Academy
    The Verification Academy will provide you with a unique opportunity to develop an understanding of how to mature your organization's processes so that you can then reap the benefits that advanced functional verification offers.

    • Blog & News

      • Verification Horizons Blog
      • Academy News
      • Academy Newsletter
      • Technical Resources

    • Verification Horizons Publication

      • Verification Horizons - November 2020
      • Verification Horizons - July 2020
      • Verification Horizons - March 2020
      • Issue Archive

    • About Us

      • Verification Academy Overview
      • Subject Matter Experts
      • Contact Us

    • Training

      • Questa® & ModelSim®
      • Questa® inFact
      • Functional Verification Library
Ask a Question
SystemVerilog
  • Home
  • Forums
  • SystemVerilog
  • Clock gating check in SV

Clock gating check in SV

SystemVerilog 4981
Clock gating check 2 systemverilog 34
rarisha.raj
rarisha.raj
Full Access
2 posts
January 27, 2014 at 1:39 am

Hi All,

Just wanted to discuss on how to check whether a clock is running / gated in SV?

Thanks in Advance.

Replies

Log In to Reply
dave_59
dave_59
Forum Moderator
8586 posts
January 27, 2014 at 8:48 am

It might help to explain using as many words as possible, what your definition of a running or gated clock is. Then we can help you migrate those words into SystemVerilog code.

— Dave Rich, Verification Architect, Siemens EDA

rarisha.raj
rarisha.raj
Full Access
2 posts
January 28, 2014 at 11:15 pm

I am trying to clock gate an IP clock and want to check in my test/seq whether it has been successful/not? I dont want to do it by checking the ack/req of the clock but the clock itself.

ysaini
ysaini
Forum Access
11 posts
January 11, 2017 at 9:17 pm

In reply to dave_59:

If i understand correctly what Raj is pointing out is a way to check if clock gets gated after some event.
In general, we use concurrent assertion to check if clock(gated_clk) gets gated when clk_en goes low in which ref_clk is used in assertion. The same is also indicated in this thread,(link)

Dave,
How should a check be implemented for gated_clk in absence of ref_clk. i.e. i just have gated_clk and clk_en and i want to check that my clock(gated_clk) is not gated when clk_en is high and i do not have ref_clk to be used in concurrent assertion.

Thanks

Siemens Digital Industries Software

Siemens Digital Industries Software

##TodayMeetsTomorrow

Solutions

  • Cloud
  • Mendix
  • Siemens EDA
  • MindSphere
  • Siemens PLM
  • View all portfolio

Explore

  • Digital Journeys
  • Community
  • Blog
  • Online Store

Siemens

  • About Us
  • Careers
  • Events
  • News and Press
  • Newsletter
  • Customer Stories

Contact Us

USA:

phone-office +1 800 547 3000

See our Worldwide Directory

  • Contact Us
  • Support Center
  • Give us Feedback
©2021 Siemens Digital Industries Software. All Rights Reserved.
Terms of Use Privacy Cookie Policy