Patent ID: 6181320
Filing Date: 2001-01-30
Classification: G06F

Abstract:
A computer-implemented method for converting a timing graph produced by a static timing engine into a timing diagram, said timing graph represented by a data structure stored in a computer, said data structure having nodes corresponding to actual circuit nodes of a circuit simulated by said timing engine and arcs connecting said nodes representing temporal relationships, the method comprising the steps of:traversing said data structure from node to node to identify nodes of a predetermined set of nodes of interest and arcs of a predetermined set of arcs of interest;extracting from each node of interest data representing a set of state transitions of a signal of said circuit present at an actual circuit node corresponding to said node of interest;outputting a graphical representation of a plurality of waveforms having said state transitions;extracting from each arc of interest data representing a set of temporal relationships including state transition relationships between signals of said circuit present at said actual circuit nodes; andoutputting a graphical representation of said relationships indicating temporal relationships between points on a first waveform and points on a second waveform defined by operational characteristics of electronic components of said circuit.