A 0.8-μm BiCMOS ATM switch on an 800 Mb/s asynchronous buffered banyan network

Author

Sakaue, Kenji ; Shobatake, Yasuro ; Motoyama, Masahiko ; Kumaki, Yoshinari ; Takatsuka, Satoru ; Tanaka, Shigeru ; Hara, Hiroyuki ; Matsuda, Kouji ; Kitaoka, Shuji ; Noda, Makoto ; Niitsu, Youichiro ; Norishima, Masayuki ; Momose, Hiroshi ; Maeguchi, Kenj

Author_Institution

Toshiba Microelectron. Corp., Kawasaki, Japan

Volume

26

Issue

8

fYear

1991

fDate

8/1/1991 12:00:00 AM

Firstpage

1133

Lastpage

1144

Abstract

An experimental element switch LSI for asynchronous transfer mode (ATM) switching systems was realized using 0.8-μm BiCMOS technology. The element switch transfers cells asynchronously when used in a buffered banyan network. Three key features of the element switch architecture are CASO buffers to increase the throughput, a synchronization technique called SCDB (synchronization in a clocked dual port buffer) to make possible asynchronous cell transmission on the element switches with simple hardware, and an implementation technique for virtual cut through, called CELL-BYPASS, which lowers the latency. An implementation of elastic store is proposed to achieve high-speed synchronization with simple hardware. The element switch LSI adopts an emitter-coupled-logic (ECL) interface. The maximum operation frequency of the element switch LSI is 200 MHz (typical)

Keywords

BIMOS integrated circuits; ISDN; broadband networks; digital communication systems; electronic switching systems; large scale integration; multiplexing equipment; semiconductor switches; synchronisation; time division multiplexing; 0.8 micron; 200 MHz; 800 Mbit/s; ATM switch; B-ISDN; BISDN; CASO buffers; CELL-BYPASS; ECL interface; SCDB; asynchronous buffered banyan network; asynchronous transfer mode; broadband ISDN; clocked dual port buffer; elastic store; element switch architecture; emitter-coupled-logic; high-speed synchronization; switch LSI; switching systems; virtual cut through; Asynchronous transfer mode; BiCMOS integrated circuits; Clocks; Delay; Frequency synchronization; Hardware; Large scale integration; Switches; Switching systems; Throughput;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.90074

Filename

90074