Graphical Representation of the Model Levels using the RASSP Taxonomy (Cont.)
A behavioral model describes the function and timing of a component without describing a specific implementation
An RTL model describes a system in terms of registers, combinational circuitry, low-level buses, and control circuits, usually implemented as finite state machines
Behavior can be described as above. Note that structure is not maintained internally and that timing, function, and data values can be modeled at any level and is case dependent.
RTL and gate level models specify more of the details of a design and hence tend to be at the higher end of the resolution scales in all categories.