Magma Design Automation, Inc.

Magna Design Automation, Inc.

Robert Swanson

Timothy Michael Burks

Hamid Savoj

Lukas Van Ginneken

Michael A Riepe

Jacob Avidan

Roger Carpenter

Karen E Vahtra

Karen F Vahtra

In various embodiments, each possible different instance of a repeated block can be concurrently optimized for timing. Each instance of a repeated block may be treated as a mode, such as a functional mode or testing mode, allowing implementation calculations to be performed simultaneously. Using multimode timing analysis, all instances of a repeated block can be analyzed and optimized simultaneously. Based on the multimode analysis, instances of a repeated block may be implemented identically or substantially similarly, which can reduce costs associated with implementing the same block more than once (e.g., impact to schedule, CPU/memory resources, ECOs).

Method for repeated block timing analysis

A method for modeling integrated circuit designs in a hierarchical design automation system which utilizes a block abstraction including therein set of all database objects (cells, nets, wires, vias, and blockages) that are necessary to achieve accurate placement, routing, extraction, simulation, and verification of the block's ancestors in the hierarchy.

Representing the design of a sub-module in a hierarchical integrated circuit design and analysis system

What is disclosed is a method for budgeting timing in a hierarchically decomposed integrated circuit design, which includes: 1) optimizing at least one path through block pins, the optimization resulting in assigned gains for all the cells along said at least one path; 2) performing timing analysis on the at least one path, the timing analysis using the assigned gains in order to generate arrival times for signals at said block pins; and 3) deriving a tinting budget by examining said generated arrival times at said block pins.

Method for generating design constraints for modules in a hierarchical integrated circuit design system

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Palo Alto, CA, United States of America

Robert Swanson