Data transfer system

Details Data transfer system Data transfer system

1977-12-08

1980-10-28

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 304

Patent

active

042310849

ABSTRACT:
There is provided a data transfer system for use in a data processing system. The data processing system comprises a central processor for processing information in accordance with an instruction stored in a main memory equipment, a peripheral equipment operable by receiving the instruction from the central processor and transmitting to the central processor a control information which requires the central processor to effect successive controlling operation, and an address bus, data bus and execution bus connecting the central processor to the peripheral equipment. When transferring data from the central processor to the peripheral equipment, the operating sequence procedure of the central processor is changed in accordance with the content on the status bus through which the control information from the peripheral equipment is transmitted to the central processor, whereby a sequence commensurate with the status of the peripheral equipment in operation is effected within the same instruction.

REFERENCES:
patent: 3303476 (1967-02-01), Moyer et al.
patent: 3815099 (1974-06-01), Cohen et al.
patent: 3830962 (1974-08-01), Mailloux
patent: 4000485 (1976-12-01), Barlow et al.
patent: 4053950 (1977-10-01), Bourke et al.

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