Automatic Timing Constraint Generation for IC Static Analysis
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Solution Overview
Problem
Traditional timing analysis for integrated circuits requires explicit and complex manual creation of timing constraints for each clock phase, leading to inefficiencies in runtime, memory usage, and potential human errors due to the need for numerous assertions across various clock types.
Innovation Solution
A method and apparatus for automatic timing constraint creation, utilizing a first clocking attribute to analyze integrated circuit designs and generate necessary timing constraints, reducing manual effort and improving accuracy by identifying design features that necessitate constraints and creating them dynamically during the static timing analysis process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual creation of timing constraints is performed for each clock phase, then timing analysis accuracy is improved, but device complexity and time consumption increase significantly
Solution Approach 1:
The system performs self-service by automatically analyzing the integrated circuit design and generating timing constraints without requiring manual intervention. The constraint creation tool autonomously identifies design features, determines necessary timing constraints, and creates the constraints file, eliminating the need for manual constraint creation while maintaining accuracy.
Solution Approach 2:
The system changes parameters by dynamically determining timing constraint parameters based on the analyzed design features. Instead of using fixed or manually specified parameters, the tool automatically adjusts timing constraint parameters according to the specific characteristics of the integrated circuit design, resolving the contradiction between accuracy and complexity.
2Measurement precision
If manual creation of timing constraints is performed for each clock phase, then timing analysis accuracy is improved, but time consumption increases significantly
Solution Approach 1:
The system performs preliminary action by conducting a comprehensive analysis of the integrated circuit design before generating timing constraints. The constraint creation tool proactively identifies all design features that require timing constraints and prepares the constraints file in advance, eliminating the need for time-consuming manual constraint creation for each clock phase while ensuring accuracy.
3Measurement precision
If manual creation of timing constraints is performed, then timing analysis accuracy is improved, but human errors increase due to numerous assertions
Solution Approach 1:
The system eliminates human errors by performing self-service constraint creation. The constraint creation tool automatically analyzes the design and generates timing constraints without human intervention, removing the source of numerous assertion errors that occur during manual constraint creation while maintaining the accuracy needed for proper timing analysis.
Data Source
AI summary
Timing constraint auto-creation for integrated circuit testing includes analyzing an integrated circuit design using a first clocking attribute, wherein the first clocking attribute describes a first clock for the integrated circuit design; identifying, based on the analysis and the first clocking attribute, design features of the integrated circuit design necessitating timing constraints; and generating, based on the identified design features, the timing constraints for the static timing analysis of the integrated circuit design.