VHDL - Wikipedia, the free encyclopedia

VHDL - Wikipedia, the free encyclopedia

This article is written like a manual or guidebook. Please help rewrite this article from aneutral point of view. (December 2008)

VHDL

Paradigm	concurrent, reactive
Appeared in	1980s
Typing discipline	strong
Influenced by	Ada, Pascal
Website	IEEE VASG

VHDL source for a signed adder.

VHDL (VHSIC hardware description language; VHSIC: very-high-speed integrated circuit) is a hardware description language used in electronic design automation to describe digital andmixed-signal systems such as field-programmable gate arrays and integrated circuits.

Contents [hide] 1 History 2 Design 3 Design Examples 3.1 Synthesizeable constructs and VHDL templates 3.2 MUX templates 3.3 Latch templates 3.4 D-type flip-flops 3.5 Example: a counter 3.6 Simulation-only constructs 4 Future 5 See also 6 Further reading 7 External links