Patent ID: 8949100
Filing Date: 2015-02-03
Classification: G06F

Abstract:
1. A computer-implemented method for simulating an analog and mixed-signal circuit design having a digital circuit segment connected to an analog circuit segment at a connection point comprising: inserting, using a processor, a switchable unidirectional interface element at the connection point located between the digital circuit segment and the analog circuit segment; and splitting the digital circuit segment into a plurality of transistor network models to provide for switchable unidirectional transfer of data between the analog circuit segment and the digital circuit segment wherein the plurality of transistor network models includes a transistor network model and a shadow transistor network model, wherein the shadow transistor network model is a digital version of the transistor network model, the transistor network model and the shadow transistor network model being associated with the digital circuit segment and are each individually connected to the switchable unidirectional interface element, and wherein the shadow transistor network model is connected to one or more digital drivers separate from the switchable unidirectional interface element, wherein the switchable unidirectional interface element is configured to compare driver strengths between a digital and analog part of a circuit.