Accellera Board Approves New Version of Analog, Mixed-Signal Standard

Standard Unifies Verilog HDL Standard IEEE Std. 1364 With Accellera’s AMS Standard, Results in Easier Implementations by Tool Developers and More Efficient Top-Down Verification

NAPA, CA–(EMWNews – August 20, 2008) – Accellera, the electronics

industry organization focused on Electronic Design Automation (EDA)

standards, announced today that its Board of Directors and Technical

Committee members — systems, semiconductor and design tool companies —

approved a new version of its Verilog-Analog Mixed-Signal (AMS) standard,

Verilog-AMS 2.3, as an Accellera standard for analog and mixed-signal

design and simulation. The new Verilog-AMS standard unifies the Verilog-AMS

2.2 specification with the IEEE Std. 1364™-2005 or Verilog hardware

description language (HDL) standard.

Verilog-AMS 2.3 enables users to develop standard and tightly integrated

Verilog-AMS modules and allows EDA software tool developers to implement

EDA tools without ambiguities in the language interpretation.

Verilog-AMS 2.3 encompasses analog and mixed-signal extensions to IEEE Std.

1364, which is widely used today for digital circuit design and

verification. The previous Accellera Verilog-AMS standard, Verilog-AMS 2.2,

was approved in 2005.

“The Verilog-AMS 2.3 language release is an important milestone for our

Technical Committee and the industry at large,” said Shrenik Mehta,

Accellera chairman. “A unified Verilog-AMS language integrated with the

IEEE Verilog standard improves AMS design and will result in an increased

acceptance of the standard.”

“Accellera’s AMS standard is a reality due to the enormous efforts of our

Subcommittee members, who are driven by the goal to improve the

productivity of AMS designers and the quality of mixed-signal designs,”

added Sri Chandrasekaran, Accellera’s Verilog-AMS Technical Subcommittee

chairman.

More about the New Accellera AMS standard

Apart from IEEE-1364 integration, Verilog-AMS 2.3 introduces new analog and

mixed-signal features to support and enable improved top-down AMS design

and verification methodologies. These include enhancements to table_model,

support for multiple analog blocks, and resolution of language conflicts

with the SystemVerilog IEEE Std. P1800, such as, changing the digital

domain name to ‘ddiscrete’ from ‘logic’ as logic is a keyword in

SystemVerilog, and making the usage of array literals consistent.

The next phase of Accellera’s AMS technical activities will include

integration of the AMS standard with the SystemVerilog language, IEEE Std.

P1800, and extensions to the AMS language for mixed-signal assertions and

behavioral modeling support.

To participate in the Accellera AMS Technical Sub-Committee efforts, please

visit www.accellera.org/activities/verilog-ams/.

About Accellera

Accellera provides design and verification standards for quick availability

and use in the electronics industry. The organization and its members

cooperatively deliver much-needed EDA standards that lower the cost of

designing commercial IC and EDA products. As a result of Accellera’s

partnership with the IEEE, Accellera standards are provided to the IEEE

Standards Association for formalization and ongoing change control. For

more information about Accellera, please visit www.accellera.org.

Notes to editors:

Acronyms and Abbreviations



AMS     Analog, Mixed Signal

EDA     Electronic Design Automation

HDL     Hardware Description Language

IEEE    Institute of Electrical and Electronics Engineers

Std.    Standard

All trademarks and tradenames are the property of their respective holders.