OpenAccess

OpenAccess is a proprietary API controlled by the OpenAccess Coalition[1] that aims to facilitate Interoperability of electronic design automation software among the members of that coalition.

OpenAccess Coalition

OpenAccess is a coalition amongst integrated circuit manufacturers (so-called "OpenAccess Coalition") to provide a standard for designing integrated circuit chips.[2] The OpenAccess Coalition is an organization of semiconductor industry companies claiming to be competition-neutral that are leading this effort operating under Silicon Integration Initiative bylaws. [3]

The OpenAccess Coalition consists both of EDA user companies (IC designers and manufacturers) and EDA provider companies, including Altera, AMD, AnaGlobe Technology, ANSYS, Atrenta, AWR Corporation, Cadence, D2S, Dolphin Integration, Entasys Design, Fractal Technologies, HP, Huada Empyrean Software, IBM, Intel, Invarian, Jedat, Keysight Technologies, Mentor Graphics, Micro Magic, Oracle, PDF Solutions, Gmbh, Pulsic Limited, Qualcomm, R3 Logic, Samsung Electronics, SiliconBlue Technologies, Silvaco, Synopsys, TSMC, Tanner Research, Teklatech, Tela Innovations, Texas Instruments, and Zuken.

OpenAccess software

OpenAccess consists of a data API of which the source code is available only to coalition members for a fee,[4][5] and bear no relation with any sort of Open-source software despite its name.

The OpenAccess API is a C++ program interface to IC design data stored in an electronic design database, with an architecture designed to ensure easy integration of contributions from various companies which may implement database enhancements or add proprietary extensions. It also includes the reference database supporting that API for IC design in multiple programming languages: C++, C#, Perl, Python, Ruby and Tcl.

In the past, electronic design flows were a combinations of proprietary applications and copyrighted EDA databases, with many different file formats and syntaxes.[6][3] As a result, significant efforts were required from IC CAD engineers to integrate them for particular projects. The resulting flows were often fragile, inefficient and therefore result in longer design cycles. OpenAccess effort is therefore attempting to create unified yet still proprietary design flow.[5]

Development history

The OpenAccess coalition was formed in Q4 1999. The members issued a request-for-technology for existing technology, looking for a solution that was proven and would be commercially adopted, and that supported a broad set of EDA tools. As a result, the Cadence Genesis database and API was selected and now forms the technology base for OpenAccess.

As of 2005, OpenAccess was the only modern integrated circuit design database which was publicly available. [6]

In 2005 the Cadence Berkeley Labs and the Silicon Integration Initiative launched the OpenAccesGear, a project to develop open source utilities on top of the OpenAccess database. Participants includued University of California at Berkeley, UCLA and UCSC.[7] The OAGear project was subsequently suspended. Si2 has offered OAGear[8] as an unsupported project (no longer offered as in 2018). Since 2017, academic institutions are not eligible to join OpenAccess coalition.

References

  1. ↑ "What is Open about Si2 OpenAccess? | Silicon Integration Initiative". www.si2.org. 2018-04-13. Retrieved 2018-05-25.
  2. ↑ Bartleson, Karen; Jamison, Rick (2010). The Ten Commandments for Effective Standards: Practical Insights for Creating Technical Standard. Happy About. p. 53. ISBN 978-1-617-30000-4.
  3. 1 2 Assessment of the OpenAccess Standard: insights on the new EDA industry standard from Hewlett-Packard, a Beta partner and contributing developer, Fourth International Symposium on Quality Electronic Design, 2003, pp. 203-207
  4. ↑ New Open Access source code policy, 2016
  5. 1 2 What is OpenAccess?
  6. 1 2 EDA for IC Implementation, Circuit Design, and Process Technology, 2005, ISBN 1420007955, section "Modern Database Examples"
  7. ↑ "Open-source project looks to ignite EDA research" EE Times
  8. ↑ OA Gear
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