skip to main content
10.1145/123186.123314acmconferencesArticle/Chapter ViewAbstractPublication PagesdacConference Proceedingsconference-collections
Article
Free Access

Datapath generator based on gate-level symbolic layout

Authors Info & Claims
Published:03 January 1991Publication History

ABSTRACT

This paper describes a new datapath generator that generates high-density mask layouts equivalent to hand-crafted ones.

An entry of the generator is a hierarchical symbolic layout at the gate level. Bit-and-row-slicing technique is a key feature to realize large-size and high-density datapath generation. A 21K transistor datapath was generated using 1-μm CMOS technology, whose density is 5.64 KTr/mm2, greater than the 5.38 KTr/mm2 of a hand-crafted datapath.

References

  1. Bales82.Bales,M.W.,"Layout Rule Spacing of Symbolic Integrated Circuit Artwork", U.C.Barldey, UCB/ERL Report M82/72, 1982.Google ScholarGoogle Scholar
  2. Boyer87.Boyer, D.G. et al., "Symbolic Layout Compaction Benchmarks-Results", Proe. ICCD'87, 1987, pp.185-217.Google ScholarGoogle Scholar
  3. Burns87.Burns,J.L. and Newton,A.R., "Efficient Constraint Generation for Hierarchical Compaction", Proc. ICCD'87, 1987, pp.197-200.Google ScholarGoogle Scholar
  4. Ishikawa87.Ishikawa, M. and Yoshimura,T., "A New Module Generator with Structural Routers and a Graphical Interface", Proc. ICCAD-87, 1987, pp.436-439.Google ScholarGoogle Scholar
  5. Kingsley84.Kingsley,C., "A Hierarchical, Error-Tolerant Compactor", Proc. 21st. DAC, 1984, pp.126-132. Google ScholarGoogle ScholarDigital LibraryDigital Library
  6. Matsumoto88.Matsumoto,N. et al., "Symbolic Design Methodology for High-Density Macro-cell", Proc. CICC'88, 1988, pp,7.3.1-4.Google ScholarGoogle Scholar
  7. Mead80.Mead, C. and Conway, L., "Introduction to VLSI Systems", Addition-Wesley Publishing Company Inc., 1980. Google ScholarGoogle ScholarDigital LibraryDigital Library
  8. Ohhashi88.Ohhashi, M, et al., "A 32b 3-D Graphic Processor Chip with 10M Pixels/s Gouraud Shading", ISSCC Digest of Technical Papers, 1988, PP.168-169.Google ScholarGoogle Scholar
  9. Reichelt86.Reichelt,M. et al,, "An Improved Cell Model for Hierarchical Constraint-Graph Compaction", Proc. ICCAD-86, 1986, pp.482-485.Google ScholarGoogle Scholar
  10. Rijnders88.Rijnders,L. et al., "Design of a Process-Tolerant Cell Library for Regular Structures Using Symbolic Layout and Hierarchical Compaction", IEEE J. Solid-State Circuits, vol. 23, 1988, pp.714-721.Google ScholarGoogle ScholarCross RefCross Ref
  11. Rowson87.Rowson, J. et al., "A Datapath Compiler for Standard Ceils and Gate Arrays", Proc. CICC'87,1987, pp.149-152.Google ScholarGoogle Scholar
  12. Takeya89.Takeya,K. et al., "A Generator for High-Density Macrocells with Hierarchical Structure", Proc. Custom Integrated Circuits Conference,1989, pp.23.5.1-4.Google ScholarGoogle Scholar
  13. Tan87.Tan, D, and Weste,N., "Virtual Grid Symbolic Layout 1987", Proc. ICCD'87, 1987, pp.192-196.Google ScholarGoogle Scholar
  14. Tokuda88.Tokuda,T. et al., "A macrocell Approach for VLSI Processor Design", IEEE Trans. Computer-Aided Design, vol.7, 1988, pp.1272-1277.Google ScholarGoogle ScholarDigital LibraryDigital Library
  15. Tokumaru88.Tokumaru,T. et al., "Design of a 32bit Microprocessor, TXI", 1988 Symposium on VLSI Circuits Technical Digest, Ill-5,1988.Google ScholarGoogle Scholar
  16. Ullman84.Ullman, J.D.,"Computational Aspects of VLSI", Computer Science Press,1984. Google ScholarGoogle ScholarDigital LibraryDigital Library
  17. Usami89.Usami, K. and Iwamura, L,"Optimized Design Method for FuR-Custom Microprocessors", Proc. CICC'89, 1989, pp.19,5.1-5.Google ScholarGoogle Scholar
  18. Usami90.Usarni, K. et al.,"Hierarchical Symbolic Design Methodology for Large-Scale Datapaths", Proe. CICC'90, 1990, pp.30.3.1-4.Google ScholarGoogle Scholar

Index Terms

  1. Datapath generator based on gate-level symbolic layout

          Recommendations

          Comments

          Login options

          Check if you have access through your login credentials or your institution to get full access on this article.

          Sign in
          • Published in

            cover image ACM Conferences
            DAC '90: Proceedings of the 27th ACM/IEEE Design Automation Conference
            January 1991
            742 pages
            ISBN:0897913639
            DOI:10.1145/123186

            Copyright © 1991 ACM

            Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

            Publisher

            Association for Computing Machinery

            New York, NY, United States

            Publication History

            • Published: 3 January 1991

            Permissions

            Request permissions about this article.

            Request Permissions

            Check for updates

            Qualifiers

            • Article

            Acceptance Rates

            DAC '90 Paper Acceptance Rate125of427submissions,29%Overall Acceptance Rate1,770of5,499submissions,32%

            Upcoming Conference

            DAC '24
            61st ACM/IEEE Design Automation Conference
            June 23 - 27, 2024
            San Francisco , CA , USA

          PDF Format

          View or Download as a PDF file.

          PDF

          eReader

          View online with eReader.

          eReader