System and method for adapting electrical integrity analysis to parametrically integrated environment

A method for unified signal integrity (SI) and power integrity (PI) analysis using a computer for an integrated circuit (IC) core powered operating in an electronic system by a power delivery network (PDN), the method comprising:

• establishing a PI topology including models to emulate the PDN serving the IC core, said PI topology maintaining at least one supply reference voltage in variable manner responsive to parametric coupling of the PDN with the IC core and an IO interface buffer of the electronic system during operation thereof, said PI topology including:
• a power plane model for a conductive power rail portion of the PDN;
• a first behavioral model interconnected to said power rail model indicative of the current consumption characteristics of the IC core;
• and,
• a second behavioral model interconnected to said power rail model indicative of the current consumption of an IO interface buffer driving an output signal of the electronic system;
• establishing an SI topology including a plurality of behavioral buffer models and at least one transmission line model representing signal trace interconnections therebetween to emulate analog input, output, and transmission characteristics of the IC core;
• interconnecting said SI topology to said PI topology to form a composite SI/PI topology, said SI topology being thereby powered responsive to said variable supply reference voltage of said PI topology;
• and,
• executing, by using a computer, alternating current (AC) and transient simulation for the composite SI/PI topology to generate SI integrity analysis data.

A system for unified signal integrity (SI) and power integrity (PI) analysis of an integrated circuit (IC) core powered operate in an electronic system by a power delivery network (PDN), the system comprising:

• a controller unit generating a programmably implemented composite model for emulating signal processing operation of the IC core, the composite model including:
• a PI topology having behavioral models interconnected to emulate the PDN serving the IC core, said PI topology maintaining at least one supply reference voltage in variable manner responsive to parametric coupling of the PDN with the IC core and an IO interface buffer of the electronic system during operation thereof;
• and,
• an SI topology interconnected to said PI topology, said SI topology having behavioral models interconnected to emulate analog input, output, and transmission characteristics of the IC core, said SI topology being thereby powered responsive to said variable supply reference voltage of said PI topology;
• and,
• a simulator unit coupled to said controller unit, said simulator unit executing alternating current (AC) and transient simulation for the composite model to generate SI integrity analysis data for IC core operation.

A computer program product for generating a programmably implemented model to emulate signal processing operation of an integrated circuit (IC) core in an electronic system, the computer program product comprising a non-transitory computer usable medium having program instructions for:

• establishing a power integrity (PI) topology including behavioral models to emulate a power delivery network (PDN) serving the IC core, said PI topology maintaining at least one supply reference voltage in variable manner responsive to parametric coupling of the PDN with the IC core and an IO interface buffer of the electronic system during operation thereof;
• establishing a signal integrity (SI) topology including behavioral models to emulate analog input, output, and transmission characteristics of the IC core;
• and,
• interconnecting said SI topology to said PI topology to form a composite SI/PI topology, said SI topology being thereby;
• executing, by using a computer, alternating current (AC) and transient simulation for the composite SI/PI topology to generate SI integrity analysis data.