VHDL
Also known as Very High Speed Integrated Circuit Hardware Description Language, VHSIC Hardware Description Language
thumb|VHDL source for a signed Adder (electronics)|adder
Key facts
- <! Hardware Description Language >programming language.name
- VHDL
- <! Hardware Description Language >programming language.paradigm
- concurrent, reactive, dataflow
- <! Hardware Description Language >programming language.year
- 1980s
- <! Hardware Description Language >programming language.latest_release_version
- IEEE 1076-2019
- <! Hardware Description Language >programming language.typing
- strong
- <! Hardware Description Language >programming language.dialects
- VHDL-AMS
- <! Hardware Description Language >programming language.influenced_by
- Ada, Pascal
- <! Hardware Description Language >programming language.File extensions
- .vhd
- <! Hardware Description Language >programming language.website
- IEEE VASG
- <! Hardware Description Language >programming language.wikibooks
- Programmable Logic/VHDL
via Wikipedia infobox
~21 min read
Article
22 sectionsContents
- History
- Standardization
- Revisions
- Related standards
- Design
- Advantages
- Design examples
- Synthesizable constructs and VHDL templates
- MUX template
- Latch template
- D-type flip-flops
- Example: a counter
- Simulation-only constructs
- VHDL-2008 features
- Hierarchical aliases
- Standard libraries
- IEEE Standard Package
- VHDL simulators
- See also
- References
- Further reading
- External links
thumb|VHDL source for a signed Adder (electronics)|adder
VHDL (VHSIC Hardware Description Language) is a hardware description language that can model the behavior and structure of digital systems at multiple levels of abstraction, ranging from the system level down to that of logic gates, for design entry, documentation, and verification purposes. The language was developed for the US military VHSIC program in the 1980s, and has been standardized by the Institute of Electrical and Electronics Engineers (IEEE) as IEEE Std 1076; the latest version of which is IEEE Std 1076-2019. To model analog and mixed-signal systems, an IEEE-standardized HDL based on VHDL called VHDL-AMS (officially IEEE 1076.1) has been developed.