CDC Verification Of Billion-Gate SoCs


Driven by growing design sizes and complexities and aggressive power requirements, design and verification engineers are witnessing an explosion in the number of asynchronous clocks. Consequently, design and verification teams spend a huge amount of time verifying the correctness of asynchronous boundaries on the chip. The paper describes three methodologies to address this issue and the benefi... » read more

CDC Methodology For Fast-To-Slow Clocks


CDC checking of any asynchronous clock domain crossing requires that the data path and the control path be identified and that the receive clock domain data flow is controlled by a multiplexer with a select line that is fed by a correctly synchronized control line.  Meridian CDC identifies all the data and associated control paths in a design and will ensure that the control signals passing fr... » read more

Avoiding Pitfalls While Specifying Timing Exceptions


Timing exceptions are commonly used to meet timing goals while implementing a design. These exceptions typically cover asynchronous paths like clock domain crossings (CDC) or synchronous paths where timing is either not relevant (e.g., set_false_path command in SDC) or can be relaxed (e.g., set_multicycle_path command in SDC), instructing static timing analysis (STA) and implementation tools to... » read more

The Week In Review: June 21


By Ed Sperling Mentor Graphics rolled out emulation-ready verification IP for MIPI camera and display-based protocols. The VIP enables stimuli generated by UVM and SystemC-based environments and applies them to a design under test (DUT) running in the emulator. Synopsys introduced a tool for implementing and verifying functional engineering change orders, including matching, visualization ... » read more

Clock Domain Crossing Demystified


A look at the second-generation solution for CDC verification. To download this white paper, click here. » read more

Observation Post


By Pranav Ashar After attending the 2013 Design and Verification Conference (DVCon) in San Jose, Calif., I have compiled notes as both an observer and a panel participant. Here are my observations: Wally Rhines, CEO of Mentor Graphics, gave the keynote presentation: Accelerating EDA Innovation Through SoC Design Methodology Convergence. Logically and effectively he made the case that SoC in... » read more

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