Cadence Design Systems, Inc.

Sushobhit Singh

Naresh Kumar

Oleg Levitsky

Amit Kumar

Arvind Nembili Veeravalli

Beenish

Akash Khandelwal

Ankur Gulati

Sumit Arora

Ankit Sethi

Shashank Prasad

Puneet Munjal

Vishal Karda

Mahesh Diwakar Sadhankar

Daksh Bakshi

Mahesh D Sadhankar

Embodiments include herein are directed towards a method for automatic detection during a timing analysis. Embodiments may include reading, using a processor, design and power intent information associated with an electronic design and automatically identifying a plurality of inter-power domain paths from the design and power intent information. Embodiments may further include automatically filtering the plurality of inter-power domain paths to identify one or more faulty inter-power domain paths using a graph-based approach and automatically generating a report depicting the one or more faulty inter-power domain paths.

System and method for automatic fault detection in an electronic design

Embodiments include herein are directed towards a method for dynamic voltage and frequency scaling (DVFS) based timing signoff associated with an electronic design environment. Embodiments may include receiving, using a processor, an electronic design and specifying, via a graphical user interface, a voltage sweep for each power net associated with the electronic design. Embodiments may further include specifying, via the graphical user interface, at least one voltage sweep to be excluded from analysis. Embodiments may also include automatically generating DVFS configurations based upon, at least in part, the voltage sweep for each power net and the at least one voltage sweep to be excluded from analysis.

System and method for performing sign-off timing analysis of electronic circuit designs

The present disclosure relates to a method for use with an electronic design. Embodiments may include receiving an electronic design having a plurality of objects associated therewith. Embodiments may further include allowing, at a graphical user interface, a user to define at least one user-refined filter selected from the group consisting of an instance pin filter, a library cell instance filter, a clock pin filter, and a net filter. Embodiments may also include generating one or more constraints based upon, at least in part, the user-refined filter.

System and method for objective probing and generation of timing constraints associated with an electronic circuit design

The present disclosure relates to a system for performing static timing analysis in an electronic design. Embodiments may include providing, using at least one processor, an electronic design and extracting hierarchical crossing path exception information from a hierarchical design view associated with the electronic design. Embodiments may further include transferring the hierarchical crossing path exception information to a block view associated with the electronic design and extracting a timing model based upon, at least in part, the hierarchical crossing path exception information. Embodiments may also include implementing the timing model at a top-level view associated with the electronic design.

Systems and methods for extracting hierarchical path exception timing models

The present disclosure relates to a system for performing static timing analysis in an electronic design. Embodiments may include receiving, using at least one processor, an electronic design at a debugging platform without performing a model extraction phase and mapping one or more extracted timing models ('ETM') to one or more netlist objects associated with the electronic design. Embodiments may further include receiving, at the debugging platform, at least one timing arc specified by a source pin and a sink pin, wherein the at least one timing arc is associated with the electronic design. Embodiments may also include generating a worst timing path based upon, at least in part, the received at least one timing arc. Embodiments may further include generating characterization information for the at least one timing arc based upon, at least in part, one or more user-specified boundary conditions.

Systems and methods for arc-based debugging in an electronic design

Various embodiments use connectivity information or model(s), design attribute(s), and system intelligence layer(s) to make lower blocks at lower levels aware of changes made in other blocks at same or different levels to implement the design at different levels synchronously. Budgeting is performed for the design to distribute budgets to respective blocks in the design. The various budgets may be borrowed from one or more blocks and lent to a block in order for this block to meet closure requirements such that a total number of iterations of the reassembly process, which integrates lower level blocks into top level design, may be reduced or completely eliminated. The design attribute(s) or the connectivity model(s) or information is updated upon the identification of changes to provide the latest information or data for properly closing a design.

Methods, systems, and articles of manufacture for synchronous hierarchical implementation of electronic circuit designs

In one embodiment, a method of designing an integrated circuit is disclosed, including receiving a plurality of top level timing constraints and a description of the integrated circuit design defining a hierarchy of partitions having multiple levels with one or more nested partitions; generating timing models for each partition of the plurality of partitions in response to the description of the integrated circuit design; and concurrently generating timing budgets level by level for all partitions at each level, beginning with the lowest level to each next upper level of the hierarchy of the partitions in response to the description of the integrated circuit design, the timing models, and the plurality of top level timing constraints. Please see the detailed description and claims for other embodiments that are respectively disclosed and claimed.

Timing budgeting of nested partitions for hierarchical integrated circuit designs

A method of timing analysis of an integrated circuit (IC) design with a partition block including an original clock signal with a pair of clock paths having an external common point outside the block boundary is disclosed, including receiving a netlist of the partition block of a hierarchical IC design, analyzing a pair of clock paths having the external common point to determine first and second clock ports at the boundary of the partition block; and for the first and second clock ports, creating launch and capture clocks, making exclusive clock groups of the launch clock and the capture clock for opposing clock ports to avoid the launch and capture clocks for each port affecting other internal data paths within the partition block, and associating common path pessimism removal information with a source latency of the capture clock to adjust timing at an end point of the internal data path.

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Noida, India

Sushobhit Singh