200-ps Interchip-Delay Field-Programmable MCM for Telecommunications

Masaru KATAYAMA  Takahiro MUROOKA  Toshiaki MIYAZAKI  Kazuhiro SHIRAKAWA  Kazuhiro HAYASHI  Takaki ICHIMORI  Kennosuke FUKAMI  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E81-A   No.12   pp.2673-2678
Publication Date: 1998/12/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
Keyword: 
FPGA,  MCM,  Interchip delay,  

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Summary: 
We have developed a Field-Programmable Multi-Chip Module (FPMCM) whose component is the telecommunication-oriented FPGAs, called PROTEUS. The module consists of 3 3 PROTEUS FPGAs and its size is 114 mm square. Each PROTEUS chip is mounted on the MCM substrate using Tape Automated Bonding (TAB) technology so as to minimize the size of the MCM and the production cost. The interconnection topology among the FPGAs is a simple mesh. However, the connection can be changed logically, because PROTEUS itself has a special inter-I/O bypass resource in it. Using this mechanism, the interchip connection delay can be reduced without sacrificing the flexibility, compared to the previous FPMCM implementation using some other interconnection switches which often have a large propagation delay. The interchip connection delay is 200 ps. We have also developed a rapid prototyping system comprising several MCMs, and implemented telecommunication circuits in it.