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PPT - Power Aware Synthesis PowerPoint Presentation - …
Traditional verification tools struggle to deal with today’s increasingly sophisticated power management technologies. One major limitation is that they cannot deal with varying power states because they make a built-in assumption that devices are always fully powered on. Further, power-aware verification at the register-transfer level is proving increasingly problematic, although it is also becoming increasingly important as design schedules demand that problems are identified and addressed as early as possible.
When power is off, the data registered in sequential elements may need to be maintained. Questa allows the user to define the processes to be retained through the mapping of a statement. You tell the tool the region to which the retention will be applied, the retention control signal, and the power-aware behavioral model that has to be mapped.
Synthesis for power-aware clock spines - IEEE Xplore …
well, changed Epistemon, that is a as related download low power design with high level power estimation and power aware synthesis of thirteen to a faux.
Figure 2 captures the contrast between traditional verification and the power-aware RTL stage that is needed, while this article describes practical methods used to verify the power-management implementation of a complex TI SoC using Questa. We will demonstrate how to use the software’s complete feature set and leverage most of the improved functionality of its power-aware engine.
Synthesis for Power-Aware Clock Spines
The non-power-aware behavioral models used for RTL simulations may have to be excluded, as it may be impossible to correctly constrain them. The same goes for models available only in a gate-level environment as the power-aware engine will not interpret these.
The main issues we encountered were during the power-aware, top-level Verilog file generation step (mspa_vopt.v). Indeed, due to tool maturity issues, some HDL syntaxes and more particularly, instances of HDL auto-generated code, were not well understood. Therefore, some sequential elements were ignored and not corrupted during the power-aware simulation, lowering our confidence in the chip verification.
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Power-Aware Architectural Synthesis | Request PDF
Output and sequential corruption is a more accurate and representative mode. It better models power management structures down to the cell level. Corruption is applied directly not only at the outputs of the power domains, but also for every embedded sequential element (e.g., a retention flip-flop and retention latch (RFF/RLA)). So when the power—specifically, the evaluation of the power control signals—corresponding to a power element is off, the power element value is corrupted. When the element is (or contains) a RFF/RLA, the retention behavior is modeled as mapped in the PCF.
Power aware clock tree synthesis - Part 3 | LinkedIn
A good practice to validate the definition of the retained sequential elements in the PCF is to crosscheck power-aware simulation results with synthesis results. It is useful to modify the PCF if needed and progressively increase its accuracy.
Power Aware Verification - Mentor Graphics
We explored both options. We used a single PCF in a medium-complexity design with a limited number of power domains where the verification team had a good understanding of the IP various blocks. We used multiple PCFs in a more ambitious project that included many power domains and where we did not have detailed knowledge of the IP. In the latter case, the PCFs were created by the IP teams and integrated by the verification team at the top level. To this end, we created an integration methodology that leveraged the usage of variables through the power-aware flow.
power estimation and power aware synthesis book page in this website
Given the ever-increasing prevalence of power management in ASIC designs, the power-aware simulation strategy described in this article should yield direct benefits for a wide range of verification engineers.
Low Power Low Latency Floorplan‐aware Path Synthesis …
Description :This book presents novel research techniques, algorithms, methodologies and experimental results for high level power estimation and power aware high-level synthesis. Readers will learn to apply such ...
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