Model compatibility aspects in multilingual simulation environments

Simulating mixed signal systems composed of models that are described in more than one hardware description language is a new technological challenge. Multilingual simulation places additional, rigorous requirements on all three integral parts of the simulation universe: tools, model development and design. This paper discusses compatibility criteria for models developed in a particular language and used in a multilingual environment. It investigates major causes of model vs. model or model vs. simulator incompatibilities and presents the necessary conditions for model compatibility. To demonstrate the approach, we present a case study that simulates a complex, mixed language, mixed signal circuit that is described in VHDL-AMS and MAST