Questa CDC identifies and solves clock-domain traversal problems, ensuring reliable and scalable digital designs.
Using advanced structural analysis, Questa CDC discovers clock domains, synchronizers, and low-power structures, identifying timing and metastability issues early in the process. FPGA project. With comprehensive automated verification and debugging tools, it simplifies the validation process and integrates seamlessly into existing workflows. Ideal for complex large-scale projects, it ensures high quality, reliability, and significantly reduced risk of errors in production.
Why choose Questa CDC for advanced and reliable verification of clock domains in digital projects?
Exhaustive analysis of clock domain crossing
Questa CDC provides in-depth structural analysis to identify timing problems, metastability risks, and protocol violations in asynchronous clock domains. This avoids critical CDC problems that might be ignored by traditional simulation.
Automated and scalable verification
Questa CDC automates the CDC verification process, supporting SoC-level scalability for billion-gate designs. Its hierarchical approach and high-performance algorithms reduce setup time and provide faster and more accurate results.
Awareness of intent at low power
Questa CDC supports Unified Power Format (UPF) standards to ensure that low-power elements such as isolation cells, retention cells, and dynamic voltage scaling are verified correctly. This helps prevent CDC errors in low-power projects.
Total integration and easy setup
Thanks to Questa's direct integration and minimal configuration requirements, it offers immediate productivity. It automatically identifies clock domains and synchronizers, offering over 50 predefined synchronization styles and support for custom synchronizers.
Using only your RTL (and SDC constraints or UPF power intent files), Questa CDC solutions automatically generate and analyze assertions to prevent CDC problems that destroy chips.
Metastability models can be exported to Questa Simulation for further analysis,
and all results can be transmitted to Questa's verification progress database via UCDB.
Want to learn more about verifying clock domains with Questa CDC?
Download the product sheet.
Automatic verification of Clock Domain Crossing (CDC)
Questa CDC offers comprehensive and automated CDC verification by identifying clock domains, synchronizers, and low-power structures through static analysis. Ensures that signals crossing asynchronous clock domains are properly synchronized, preventing metastability and timing errors.
Awareness of intent at low power
Questa CDC supports UPF (Unified Power Format) files and ensures that low-power design elements, such as isolation cells and dynamic voltage scaling, do not introduce CDC-related problems. It helps verify power domain crossings and ensures the integrity of low-power circuits.
Scalable and high-performance analysis
Designed for SoC-level scalability, Questa CDC can handle designs with billions of ports. Its hierarchical approach and efficient use of memory ensure high performance, enabling it to scale large and complex projects while maintaining high accuracy.
Comprehensive debugging tools
Questa CDC offers powerful and intuitive debugging capabilities with visualizations of CDC-specific patterns and waveforms.
This allows designers to easily identify CDC-related issues through a familiar, color-coded GUI and ensures they can quickly resolve clock domain crossing problems.
This allows designers to easily identify CDC-related issues through a familiar, color-coded GUI and ensures they can quickly resolve clock domain crossing problems.
Full integration with Questa Simulation
Questa CDC integrates directly with Questa's simulation tools, including patented metastability injection technology, allowing designers to test the resilience of their designs to real-world CDC failures. It helps identify critical bugs that may not be highlighted by static analysis alone.
Immediate productivity and automatic repair guidance
With minimal configuration, Questa CDC automatically identifies clock domains, synchronization structures, and potential CDC problems. It provides automatic repair guidance, choosing from more than 50 synchronization styles and supporting custom synchronizers for proprietary projects.
"Questa CDC detects and resolves clock domain crossing (CDC) issues, ensuring proper operation and synchronization in digital designs."
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