Shared access control device for integrated system with multiple

Details Shared access control device for integrated system with multiple Shared access control device for integrated system with multiple

1998-03-24

2000-03-14

Sheikh, Ayaz R.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

710 21, 710 22, 710 23, 710 52, 710127, 710128, 710131, 711100, 711147, 711150, 711211, 709231, 3408258, G06F 1300

Patent

active

060386304

ABSTRACT:
A multi-path access control device for an integrated system is presented which allows simultaneous access to multiple external devices coupled thereto by multiple functional units. The multiple functional units are coupled to the shared access control device across two or more high speed, shared data buses. The control device includes multiple bus ports, each coupled to a different data bus, and a non-blocking crossbar switch coupled to the bus ports for controlling forwarding, with zero cycle latency, of requests from the functional units. Multiple external device ports are coupled to the non-blocking crossbar switch for receiving requests forwarded by the crossbar switch, and each external device is coupled to a different external device port. The crossbar switch allows multiple requests at the bus ports directed to different external devices to be forwarded to different external device ports for simultaneous accessing of different external devices coupled thereto pursuant to the multiple requests.

REFERENCES:
patent: 3810105 (1974-05-01), England
patent: 4713748 (1987-12-01), Magar et al.
patent: 4901230 (1990-02-01), Chen et al.
patent: 4912636 (1990-03-01), Magar et al.
patent: 4968977 (1990-11-01), Chinnaswamy et al.
patent: 5175841 (1992-12-01), Magar et al.
patent: 5392446 (1995-02-01), Tower et al.
patent: 5577230 (1996-11-01), Argade et al.
patent: 5636361 (1997-06-01), Ingerman
patent: 5638520 (1997-06-01), Moyer
patent: 5664223 (1997-09-01), Bender et al.
patent: 5708784 (1998-01-01), Yanai et al.
patent: 5805821 (1998-09-01), Saxena et al.
Stauffer, D., Schiller, C., Adlnolfe, N. & Parash, A., "System-Level Integration for Set-top Boxes," Communication Systems Design, vol. 4, No. 1, p. 37-41 (Jan. 1988).
'97 Semiconductor System Solution Symposium, Next Generation Multi-Function TV and Multimedia, Nov. 13, 1997, Pacifica Yohohama Convention Center.

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