Appendix: Overview of VHDL Language
Tertulien Ndjountche · 2016
Unlike the structural description, the behavioral description is not directly related to the basic elements of a system, but it is based on the use of sequential algorithms.Dataflow description uses concurrent instructions to assign the corresponding values to different signals. A.2.1. NamesIn VHDL, a name is used to identify the following elements: ENTITY, ARCHITECTURE, PACKAGE, PACKAGE BODY and CONFIGURATION.It must be composed of a letter followed by any number of letters or numbers without any spaces.An underscore can be used within a name, but not at the beginning or end.Additionally, two consecutive underscores are not allowed.It should be noted that VHDL does not differentiate between upper case and lower case characters.Certain names or identifiers are used as keywords in VHDL.These are reserved