Digital crossbar switch

Details Digital crossbar switch Digital crossbar switch

1987-06-22

1989-07-25

Paschall, M. H.

Multiplex communications

Wide area network

Packet switching

370 85, 370112, 34082503, H04M 318

Patent

active

048520837

ABSTRACT:
A digital crossbar switch for switching data from an input/output data bus to an internal data bus and to the same or another input/output data bus which includes a plurality of multiplexer logic units, an m-bit internal data bus coupled to each of said multiplexer logic units where m is an integer, and a plurality of n-bit input/output data buses one connected to each of the multiplexer logic units were n is an integer. The switch further includes an m
to 1 multiplexer, where m
is an integer, in each multiplexer logic unit. The m
to 1 multiplexer has an input control to the internal data bus and an output coupled to a corresponding one of the input/output data buses and is operative in response to a configuration control signal to switch a selected n-bits of data from the internal data bus to the corresponding input/output data bus. A memory storage for storing configuration control signals is coupled to the m
to 1 multiplexer.

REFERENCES:
patent: 4084236 (1978-04-01), Chelberg et al.
patent: 4099234 (1978-07-01), Woods et al.
patent: 4404556 (1983-09-01), Messina et al.
patent: 4475187 (1984-10-01), Barabas
"The GF 11 Superconductors", IEEE, 1985, Beetem et al., pp. 108-115.
Digest of Technical Papers, 1987, IEEE International Solid State Circuits Conference, pp. 276, 277 and 425, Chi-Yuan Chin et al.

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