IEEE 1076
Encyclopedia
The IEEE Standard 1076 defines the VHSIC
Hardware Description Language
or VHDL. It was originally developed under contract F33615-83-C-1003 from the United States Air Force
awarded in 1983 to a team with Intermetrics, Inc. as language experts and prime contractor, with Texas Instruments
as chip design experts and IBM
as computer system design experts. The language has undergone numerous revisions and has a variety of sub-standards associated with it that augment or extend it in important ways.
1076 was and continues to be a milestone in the design of electronic systems.
VHSIC
VHSIC was a 1980s U.S. government program to develop very-high-speed integrated circuits.The United States Department of Defense launched the VHSIC project in 1980 as a joint tri-service project. The project led to advances in integrated circuit materials, lithography, packaging, testing, and...
Hardware Description Language
Hardware description language
In electronics, a hardware description language or HDL is any language from a class of computer languages, specification languages, or modeling languages for formal description and design of electronic circuits, and most-commonly, digital logic...
or VHDL. It was originally developed under contract F33615-83-C-1003 from the United States Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...
awarded in 1983 to a team with Intermetrics, Inc. as language experts and prime contractor, with Texas Instruments
Texas Instruments
Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...
as chip design experts and IBM
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...
as computer system design experts. The language has undergone numerous revisions and has a variety of sub-standards associated with it that augment or extend it in important ways.
1076 was and continues to be a milestone in the design of electronic systems.
Revisions
- 1076-1987 First standardized revision of ver 7.2 of the language from the United States Air Force.
- 1076-1993 (ISBN 1-55937-376-8) Significant improvements resulting from several years of feedback. Probably the most widely used version with the greatest vendor tool support.
- 1076-2000 Minor revision. Introduces the use of protected types.
- 1076-2002 Minor revision of 1076-2000. Rules with regard to buffer ports are relaxed.
- 1076-2008 (previously referred to as 1076-200x) Major revision released on 2009-01-26. Among other changes, this standard introduces the use of external signals.
Related standards
- IEEE 1076.1 VHDL Analog and Mixed-Signal
- IEEE 1076.1.1 VHDL-AMS Standard Packages (stdpkgs)
- IEEE 1076.2 VHDL Math Package (math)
- IEEE 1076.3 VHDL Synthesis Package (vhdlsynth)
- IEEE 1076.3 VHDL Synthesis Package - Floating Point (fphdl)
- IEEE 1076.4 Timing (VHDL Initiative Towards ASIC Libraries: vital)
- IEEE 1076.6 VHDL Synthesis Interoperability
- IEEE 1164IEEE 1164The IEEE 1164 standard defines a package design unit that contains declarations that support a uniform representation of a logic value in a VHDL hardware description....
VHDL Multivalue Logic (std_logic_1164) Packages