Data processing system having a control device for controlling a

Details Data processing system having a control device for controlling a Data processing system having a control device for controlling a

1985-04-03

1985-12-31

Thomas, James D.

Boots, shoes, and leggings

G06F 304, G06F 1300

Patent

active

045625344

ABSTRACT:
In a data processing system a control device for an intermediate memory during a bulk data transport between two data devices. A first data device addresses a number of descriptor signals. Each descriptor signal indicates another descriptor signal, so that a sequence is formed which is cyclically coupled end-around. The descriptor signals indicate either a memory section or a branch to a remote address in the memory. The memory sections used may thus be distributed throughout the memory. Additional descriptor signals indicate, in a direct or indirect manner, a descriptor signal of the sequence for each of the two data devices. A handshake by way of signal bits is present at the level of the memory sections.

REFERENCES:
patent: 3704453 (1972-11-01), Blackwell et al.
patent: 3728693 (1973-04-01), Macker et al.
patent: 4065810 (1977-12-01), Cramer et al.
patent: 4177512 (1979-12-01), Moggia

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