Mixed-signal simulation by way of the Simbus backplane

This work discusses a simulation backplane called "Simbus", which allows analog and digital simulators to be connected and utilized together to perform mixed-signal simulation. The approach allows elements of the each domain to be expressed in their native format, simulate on their native simulators, and be coupled into an aggregate mixed-signal simulation. Currently supported simulators include the Savant VHDL simulator based on P. A. Wilsey et al. (see ibid., 1998) and Sandia National Lab\´s Xyce S. A. Hutchinson et al. (see ibid., 2002) simulator - a SPICE-like circuit simulator. Simbus is available under the open source LGPL license with source code freely available.