Cadence Design Systems, Inc.

Raymond Komow

Jilin Tan

Taranjit Singh Kukal

Dennis Nagle

Feras Al-Hawari

Paul S Musto

Roger Cleghorn

Shu Ye

Shangli Wu

A system and method are provided for generating a programmably implemented model which emulates a power delivery network serving an integrated circuit (IC) core in an electronic system. The system and method generally comprise measures for establishing a power integrity (PI) topology including models for a voltage regulator module that generates at least one predetermined supply voltage level, and for a conductive power rail portion of the power delivery network (PDN). The system and method further comprise measures for interconnecting to the conductive power rail portion model a first behavioral model indicative of the current consumption characteristics of the IC core, and a second behavioral model indicative of the current consumption of an IO interface buffer driving an output signal of the electronic system.

System and method for implementing power integrity topology adapted for parametrically integrated environment

A model library contains one or more storable models of a physical system each constructed by numerically solving relationships between a characteristic of the physical system given a set of model parameters. Such a model may be retrieved from the library according to values assigned to the model parameters and used to determine a corresponding characteristic of the physical system without repeating the numerical solution method originally used to create the model. Instead, a mapping may be applied to the storable model to seamlessly obtain the characteristic upon request.

Analysis of physical systems via model libraries thereof

A method and system are provided for parametrically adapting a behavioral model pre-configured for a preset supply reference level to fluctuations therein. The behavioral model is adaptively scaled for deviation of the electronic system supply reference from its preset level. The scaling includes reconstructing a surrogate device parametrically representative of a portion of the behavioral model's undisclosed circuit. The reconstruction includes pre-setting a transistor type for the surrogate device, such that the surrogate device is configured with a conductive channel current-voltage characteristic of the preselected transistor type. Device-specific properties for the surrogate device are generated based on selective cross-correlation of operating points between the conductive channel current-voltage characteristic and V-t and I-V curves associated with the behavioral model. An instantaneous value for a modeled current parameter may then be replaced with a scaled channel current value generated for the surrogate device responsive to supply reference deviation from its preset level.

System and method for adapting behavioral models to fluctuations in parametrically integrated environment

A system and method is provided for generating a programmably implemented model which emulates a power delivery network serving an integrated circuit (IC) core in an electronic system. The system and method generally comprise measures for establishing a power integrity (PI) topology including models for a voltage regulator module that generates at least one predetermined supply voltage level, and for a conductive power rail portion of the power delivery network (PDN). The system and method further comprise measures for interconnecting to the conductive power rail portion model a first behavioral model indicative of the current consumption characteristics of the IC core, and a second behavioral model indicative of the current consumption of an IO interface buffer driving an output signal of the electronic system.

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Chelmsford, MA, United States of America

Raymond Komow