Chapter 16 . VHDL Domain

The VHDL domain replaces the VHDLF domain. It is not, however, meant to be used in the same way as the VHDLF domain: the VHDL domain is for generating code from functional block diagrams with SDF semantics, while the VHDLF domain was intended to contrast with the VHDLB domain. It supported structural code generation using VHDL blocks with no execution delay or timing behavior, just functionality. The semantics for the VHDLF domain were not strictly defined, and quite a lot depended on how the underlying VHDL code blocks associated with each VHDLF star were written.