By Janick Bergeron, Eduard Cerny, Alan Hunter, Andy Nightingale
Functional verification is still one of many unmarried greatest demanding situations within the improvement of advanced system-on-chip (SoC) units. regardless of the creation of successive new applied sciences, the distance among layout power and verification self belief keeps to widen. the most important challenge is that those various new applied sciences have resulted in a proliferation of verification aspect instruments, so much with their very own languages and methodologies.
Fortunately, an answer is to hand. SystemVerilog is a unified language that serves either layout and verification engineers through together with RTL layout constructs, assertions and a wealthy set of verification constructs. SystemVerilog is an general that's good supported through a variety of verification instruments and structures. A unmarried language fosters the improvement of a unified simulation-based verification software or platform.
Consolidation of aspect instruments right into a unified platform and convergence to a unified language let the advance of a unified verification method that may be used on a variety of SoC tasks. ARM and Synopsys have labored jointly to outline simply the sort of technique within the Verification method guide for SystemVerilog. This publication relies upon top verification practices through ARM, Synopsys and their customers.
Verification method guide for SystemVerilog is a blueprint for verification good fortune, guiding SoC groups in development a reusable verification atmosphere taking complete benefit of design-for-verification recommendations, constrained-random stimulus new release, coverage-driven verification, formal verification and different complicated applied sciences to aid remedy their present and destiny verification problems.
This publication is suitable for a person focused on the layout or verification of a posh chip or a person who wish to comprehend extra concerning the functions of SystemVerilog. Following the Verification technique guide for SystemVerilog will provide SoC improvement groups and venture managers the arrogance had to tape out a posh layout, safe within the wisdom that the chip will functionality safely within the actual international.
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Sensible verification continues to be one of many unmarried greatest demanding situations within the improvement of advanced system-on-chip (SoC) units. regardless of the advent of successive new applied sciences, the space among layout potential and verification self assurance keeps to widen. the most important challenge is that those diversified new applied sciences have ended in a proliferation of verification aspect instruments, so much with their very own languages and methodologies.
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Extra resources for Verification Methodology Manual for SystemVerilog
Observed response from the stimulus is forwarded to the compare function to verify that it is an expected response. Transfer Function Stimulus Data Structure DUT Compare Response Figure 2-2. Scoreboarding The transfer function is a transaction-level reference model that usually operates in zero time. It may also be implemented using a reference or golden model. The data 38 Verification Methodology Manual for SystemVerilog Response Checking structure stores the expected response until it can be compared against the observed output.
It must be easy—not just possible—to reproduce a simulation. It is necessary that there be a simple mechanism for ensuring that the exact model configuration used in a simulation be known. Which version of what source files, tools and libraries were used? Similarly, it must be simple to record and reissue the exact simulation command that was previously used —especially using the same random seed. Command-line options cannot be source-controlled. Therefore a script should be used to set detailed command-line options based on broad, high-level simulation options.
The Direct Programming Interface may be used to integrate them in the SystemVerilog environment. A directed test may implement its expected response using a test-specific transfer function that models only the necessary subset of the functionality that is exercised. The term “scoreboard” is not well-defined in the industry. It sometimes refers to the storage data structure only, sometimes it includes the transfer function as well, and sometimes it includes the comparison function. In this book, the term scoreboard is used to refer to the entire dynamic response-checking structure.