Repeater insertion method and its application to a 300 MHz 128-bit 2-way superscalar microprocessor

Author

Kojima, Norman ; Paramwswar, Y. ; Klingner, Christian ; Ohtaguro, Y. ; Matsui, Masataka ; Iwasa, Shigeaki ; Teruyama, Tatsuo ; Shimazawa, Takayoshi ; Takeda, Hideki ; Hashizume, Kouji ; Tago, Haruyuki ; Yamada, Masaaki

Author_Institution

Design Methodology Dept., Toshiba Corp. Semicond. Co., Kawasaki, Japan

fYear

2000

fDate

9-9 June 2000

Firstpage

641

Lastpage

646

Abstract

Interconnect delay is dominant in today\´s high speed VLSI circuits and there have been various studies on ways to resolve it. A repeater insertion tool "RePertory" has been developed to solve the interconnect timing problem on a 300 MHz 128-bit 2-way superscalar microprocessor. Because of its practical simple algorithm, the location of over 5700 repeaters distributed over 5 modules is calculated in 26 minutes on 5 UltraSPARC-II 360 MHz in parallel. This paper describes the goals of RePertory for this project, the timing improvement flow with RePertory, the results and analysis of this repeater insertion method.

Keywords

VLSI; circuit layout CAD; high level synthesis; integrated circuit interconnections; logic partitioning; microprocessor chips; reduced instruction set computing; timing; vector processor systems; 128 bit; 2-way superscalar microprocessor; 300 MHz; Emotion Engine; RISC core; RePertory tool; VLSI; design flow; electromigration violations; floor plan; interconnect timing problem; module boundaries preservation; next generation video console; repeater insertion method; vector processing unit; Automatic control; Delay; Electromigration; Engines; Integrated circuit interconnections; Large scale integration; Microprocessors; Repeaters; Timing; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Design Automation Conference, 2000. Proceedings of the ASP-DAC 2000. Asia and South Pacific

Conference_Location

Yokohama, Japan

Print_ISBN

0-7803-5973-9

Type

conf

DOI

10.1109/ASPDAC.2000.835178

Filename

835178