Method of distinguishing bidirectional pins

Details Method of distinguishing bidirectional pins Method of distinguishing bidirectional pins

2005-01-25

2005-01-25

Knight, Anthony (Department: 2121)

Data processing: structural design, modeling, simulation, and em

Simulating electronic device or electrical system

Circuit simulation

C703S004000, C716S030000

Reexamination Certificate

active

06847926

ABSTRACT:
A method is described for distinguishing between an input or output signal on a bi-directional pin of a model of a hardware circuit. The method includes the steps of for a bi-directional pin of said model applying signals to said pin at a reduced drive strength such that a driven signal on said pin will be superimposed over the applied signal, and comparing the drive strength on the bi-directional pin and responsive to said comparison determining whether the bi-directional pin is an input or output.

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