Any changes made to circuit structure or simulation parameters are immediately reflected in the displayed simulation results, even inside hierarchical blocks. Simulation models are provided for hundreds of standard components, including the 74XX and 4000 series. Models can be associated with each device symbol as it is used or loaded in batch for existing schematics. Any existing design can be attached to a device symbol and used as a model, allowing you to create simulations for arbitrarily complex devices. Timing text data can also be written to and read from disk files.
Trigger functions provide logic analyzer-style word recognition and glitch detection capability.
Triggers can be cascaded with time constraints, allowing complex sequences of events to be recognized. Trigger actions can include stopping the simulation, enabling or disabling the timing display or generating a reference mark on the timing diagram. These functions are also available in menu commands. The waveform display allows any number of waveforms to be displayed simultaneously. A grouping feature allows arbitrary collections of signals to be combined into a single trace with hexadecimal value display.