Method and apparatus for communicating data between a host and a

Details Method and apparatus for communicating data between a host and a Method and apparatus for communicating data between a host and a

1985-10-31

1988-12-27

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 1314

Patent

active

047945168

ABSTRACT:
In a centrally controlled resource arbitration system, each of the units concurrently requesting access sends its identity code and the binary complement thereof to a central arbitration processor. The identity codes are logically combined into a first word, and the binary complements are logically combined into a second word. A subset identifier of the requesting units is then formed by combining corresponding bits of the first and second words. Unresolved values in the subset identifier are iteratively removed to eliminate a subset of the requesting units. When all but one of the requesting units have been eliminated, access to the resource is given to the remaining unit.

REFERENCES:
patent: 3925766 (1975-12-01), Bardoffi et al.
patent: 4458314 (1984-07-01), Grimes
patent: 4463445 (1984-07-01), Grimes
patent: 4470110 (1984-09-01), Chiarottino et al.
patent: 4609995 (1986-09-01), Hasebe
"Persistent and Nonpersistent CSMA", Tanenbaum, Computer Networks, Prentice-Hall Publishing Co., 1981, pp. 289-291.
"Arbitration and Control Acquisition in the Porposed IEEE 896 Future Bus", IEEE Micro, Aug. 1984, pp. 28-41.

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