tag: power-aware

An Integrated Approach To Power Domain And CDC Verification
By Kurt Takara - 11 Mar, 2021 - Comments: 0

Reducing power consumption is essential for both mobile and data center applications. Yet it is a challenge to lower power while minimally impacting performance. The solution has been to partition designs into multiple power domains which allow selectively reducing voltage levels or powering off partitions. Traditional low power verification validates only the functional correctness of power... » read more

EDA On Board With New Package Options
By Ann Mutschler - 22 Jul, 2020 - Comments: 2

A groundswell of activity around multi-die integration and advanced packaging is pushing EDA companies to develop integration strategies that speed up time to sign-off, increase confidence that a design will work as expected, while still leaving enough room for highly customized solutions. Challenges range from how to architect a design, how to explore the best options and configurations, ho... » read more

Power Management And Integration Of IPs In SoCs: Part 2
By Progyna Khondkar - 14 May, 2020 - Comments: 0

Most IP are available as either soft or hard macros. But both pose immense challenges. This is especially so when integrating them into low power designs and conducting power aware (PA) verification, because the majority of IP are self-contained and pre-verified at the block level and they must be preserved in their entirety when integrated or verified in the SoC level. Part one of this two ... » read more

Shift Left Power-Aware Static Verification
By Himanshu Bhatt - 10 Oct, 2019 - Comments: 0

Next-generation SoCs with advanced graphics, computing, machine learning (ML) and artificial intelligence (AI) capabilities are posing new unseen challenges in Low Power Verification. These techniques can introduce critical bugs into a design, especially when the power-management infrastructure interacts with signals that cross clock or reset domains. This can create additional clock-domain cro... » read more

Writing Reusable UPF For RTL And Gate-Level Low Power Verification
By Durgesh Prasad - 08 Aug, 2019 - Comments: 0

By Durgesh Prasad, Jitesh Bansal and Madhur Bhargava The Unified Power Format (UPF) is used to specify the power intent of a design. Once written, the UPF file is applied at every stage of the design cycle — starting with the RTL, then the gate-level, and finally during place and route. A major problem is that the UPF needs to be refined or modified at every stage to keep it compatible ... » read more

Empowering UPF Commands With Effective Elements Lists
By Progyna Khondkar - 16 Jul, 2019 - Comments: 0

The Unified Power Format (UPF) is intended for power management, power aware verification, and low power implementation. The more we explore the inherent features of UPF commands and options, and comprehend their interrelation, the more we become accurate, productive, and consistent in developing UPF for our intended purposes. Although the UPF is very well defined through the IEEE 1801 LRM, ... » read more

Shift-Left Low Power Verification With UPF Information Model
By Himanshu Bhatt - 30 May, 2019 - Comments: 0

By Himanshu Bhatt, Shreedhar Ramachandra and Narayanan Ganesan Low power testbenches today have no visibility of the UPF objects and their states during a low power simulation. This has been one of the factors limiting the users from writing re-usable low power testbenches that can monitor the UPF objects and react to the state changes of UPF objects. To meet this requirement for the user to... » read more

Efficient Low Power Verification & Debug Methodology Using Power-Aware Simulation
By Himanshu Bhatt - 13 Dec, 2018 - Comments: 1

By Himanshu Bhatt and Shreedhar Ramachandra Isolation, retention, and power switches are some of the important functionalities of power-aware designs that use some of the common low power techniques (e.g.) power shutoff, multi-voltage and advanced techniques (e.g.) DVFS, Low VDD standby, and biasing. The strategies for isolation, retention, and level shifter are specified in the power forma... » read more

Solving Puzzling Power-Aware Coverage: Getting An Aggregated Coverage Metric
By Progyna Khondkar - 13 Sep, 2018 - Comments: 0

Coverage metrics tell us when a design has been thoroughly verified, or at least exercised to the point of diminishing returns. Rarely can every design artifact or design parameter of a highly complex design be covered 100 percent, but we can use coverage metrics to know the extent to which we have verified the design — enough to be confident that it will function as desired in the end produc... » read more

Power-Aware Static Checks: Static Checker Results And Debugging Techniques
By Progyna Khondkar - 17 Jul, 2018 - Comments: 0

In Part 1 of this three article series on power aware (PA) verification, we examined the foundations and verification features of PA static checks. In Part 2, we discussed the features of the static verification library and described best static verification practices. Part 3 concludes this series with details of static PA verification tool procedures using a real example to analyze PA-Stati... » read more

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