All Categories : Technical Papers Bookmark and Share

Title : Finding Reset Nondeterminism in RTL Designs – Scalable X-Analysis Methodology and Case Study
Company : Avery Design Systems, Inc
Date : 12-Mar-2011
Downloads : 5

Rate This File
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Due to increases in design complexity, routing a reset signal to all registers is becoming more difficult. One way to solve this problem is to reset only certain registers and rely on a software initialization sequence to reset other registers. This approach, however, may allow unknown values (also called Xvalues) in uninitialized registers to leak to other registers, leaving the design in a nondeterministic state. Although logic simulation can find some X-problems, it is not accurate and may miss bugs. A recent approach based on symbolic simulation can handle Xs accurately; however, it is not scalable. In this work we analyze the characteristics of X-problems and propose a methodology that leverages the accuracy of formal X-analysis and can scale to large designs. This is achieved by our novel partitioning techniques and the intelligent use of waveforms as stimulus. We applied our methodology to an industrial design and successfully identified several Xs unknown to the designers, including three real bugs, demonstrating the effectiveness of our approach.
User Reviews More Reviews Review This File
Aldec

Featured Video
Jobs
Hardware Design Engineer for FlexRadio at Austin, Texas
Electronics Component Engineer for Lockheed Martin at Huntsville, Alabama
Embedded Firmware Engineer for FlexRadio at Austin, Texas
Senior RF Design Engineer for Lockheed Martin at Chelmsford, Massachusetts
Upcoming Events
Embedded Systems Conference (ESC) Silicon Valley at San Jose Convention Center San Jose CA - Aug 27 - 29, 2019
MEMS & Imaging Sensors Summit at World Trade Center Grenoble France - Sep 25 - 27, 2019
Embedded Systems Week (ESWEEK) at New York City NY - Oct 13 - 18, 2019
TrueCircuits: UltraPLL



Internet Business Systems © 2019 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise