Data transfer controller

Details Data transfer controller Data transfer controller

1992-05-15

1993-01-12

Heckler, Thomas M.

Boots, shoes, and leggings

3642285, G06F 300, G06F 1332

Patent

active

051796635

ABSTRACT:
A data transfer controller having a plurality of data transfer channels, each having burst-number registers for prescribing the numbers of data transfer words in the individual channels, a total-burst-number register for prescribing the number of continuous data transfer words extending over at least two of the channels, and control means for performing a control for acquiring a bus mastership upon receiving a signal of the status of any of the channels capable of transferring data, for controlling the numbers of continuous data transfer words in the individual channels on the basis of the set values of the burst-number registers, respectively, and for maintaining the bus mastership for any other channel in the status capable of transferring data, until the numbers of the continuous data transfer words after the acquisition of the bus mastership reaches the set value of the total-burst-number register.

REFERENCES:
patent: 4413319 (1983-11-01), Shultz et al.
patent: 4484303 (1984-11-01), Provanzano et al.
patent: 4882727 (1989-11-01), Williams et al.
patent: 4975828 (1990-12-01), Wishneusky et al.

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