Communications controller central processing unit board

Details Communications controller central processing unit board Communications controller central processing unit board

1994-05-26

1995-12-12

Eng, David Y.

Boots, shoes, and leggings

364940, 3642408, 36442605, 395308, 395650, 39520012, G06F 1517

Patent

active

054758181

ABSTRACT:
A microprocessor based data communications controller board includes at least one microprocessor and is for controlling communications over a plurality of busses having different electrical specifications and using different communications procedures. The board includes a first interface for interfacing the microprocessor based data communications controller board with a first communications bus providing a multidrop serial master-slave synchronous data link controlled communications system. The board also includes a second interface for interfacing the microprocessor based data communications controller board with at least one second communications bus providing a Manchester encoded multidrop master-slave high-level data link controlled communications system. And the board also includes a third interface for interfacing the microprocessor based data communications controller board with a third communications bus providing a parallel processor-to-processor message passing communications system.

REFERENCES:
patent: 4075691 (1978-02-01), Davis
patent: 4200930 (1980-04-01), Rawlings
patent: 4281315 (1981-07-01), Bauer
patent: 4385384 (1983-05-01), Rosbury et al.
patent: 4780814 (1988-10-01), Hayek
patent: 4961140 (1990-10-01), Pechanek et al.
ISO 4335, Third Edition, "Information Processing Systems Data Communication-High-Level Data Link Control Elements of Procedures," International Organization for Standardization, Jan. 8, 1987.
Draft DIN 43322 German Standard specification, Parts 1, 2, 4 and 5 dated Jun. 1988 and Part 5 dated Jul. 1988 (Parts 1 to 5 in English-Part 4 in German also).
"HEX32: Hexidecimal Object File Format Specification Revision A," Intel, Jan. 6, 1988, pp. 1 to 8.

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