Computer system with bridge circuitry having input/output multip

Details Computer system with bridge circuitry having input/output multip Computer system with bridge circuitry having input/output multip

1993-12-16

1995-10-03

Bowler, Alyssa H.

Multiplex communications

Wide area network

Packet switching

370 859, 39542101, 36492691, 36492798, 3649354, 36493541, 364DIG2, 364238, 3642382, 3642386, G06F 1300

Patent

active

054559154

ABSTRACT:
A bridge circuit adapted to be associated with a first and a second bus circuit which includes a first unidirectional path including a buffer for storing read data or addresses, a second unidirectional path including a buffer for storing write data or addresses, a third direct unidirectional path, an input circuit for multiplexing data or addresses from either of the first or second bus circuits, an output circuit for transferring data from any of the three unidirectional paths to either the first or the second bus circuit, and sources of signals for controlling the particular unidirectional path taken depending on the transfer operation being accomplished.

REFERENCES:
patent: 4339793 (1982-07-01), Marenin
patent: 4438490 (1984-03-01), Wilder, Jr.
patent: 4627050 (1989-12-01), Johnson et al.
patent: 4807109 (1989-02-01), Farrell et al.
patent: 5191581 (1993-03-01), Woodbury et al.
patent: 5305442 (1994-04-01), Pedersen et al.
patent: 5333276 (1994-07-01), Solari
Maria C. Yuang, "MRACMAN: A High-Throughput Backbone Metropolitan Area Network Using Simplified Bridges"; Supercomm/ICC 1992 IEEE.
"82420/82430 PCIset EISA Bridge 82374EB/SBEISA System Component (ESC) 82375EB/SB PCI-EISA Bridge (PCEB)", Intel Corporation, 1993.
"82423TX Data Path Unit (DPU)", Intel Corporation, 1994.
"82424 Cache and DRAM Controller (CDC)", Intel Corporation, 1994.

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