Data transfer control system

Details Data transfer control system Data transfer control system

1976-10-15

1979-04-24

Nusbaum, Mark E.

Boots, shoes, and leggings

G06F 918, G06F 1516

Patent

active

041515927

ABSTRACT:
A data transfer control system for controlling the priority use of a common bus shared by a plurality of data processors which comprises a bus rank memory for storing signals denoting a demand for the priority use of the common bus which are supplied from said plural data processors; and a priority-detecting circuit for detecting the sequential priority positions of signals demanding the priority use of the common bus which are stored in said bus rank memory, wherein the plural data processors are supplied with a control signal instructing the use of the common bus or a waiting position for said use according to the sequential priority positions of the common bus use-demanding signals which have been detected by said priority-detecting circuit.

REFERENCES:
patent: 3445822 (1969-05-01), Driscoll
patent: 3593300 (1971-07-01), Driscoll et al.
patent: 3648253 (1972-03-01), Mullery et al.
patent: 3710351 (1973-01-01), Nakamura
patent: 3711835 (1973-01-01), Jaeger et al.
patent: 3813648 (1974-05-01), Huber
patent: 3820079 (1974-06-01), Bergh et al.
patent: 3959775 (1976-05-01), Valassis et al.
patent: 3964054 (1976-06-01), Annunziata et al.
patent: 4040028 (1977-08-01), Pauker et al.

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