Controlling complex non-linear data transfers

Details Controlling complex non-linear data transfers Controlling complex non-linear data transfers

2011-01-18

2011-01-18

Sorrell, Eron J (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S028000, C710S048000, C711S145000, C711S149000, C711S169000, C345S554000

Reexamination Certificate

active

07873757

ABSTRACT:
A direct memory access controller for controlling data transfer between a plurality of data sources and a plurality of data destinations is disclosed. The plurality of data sources and data destinations communicate with the direct memory access controller via a plurality of channels, the direct memory access controller further communicates with a memory and a processor. The memory stores two sets of control data for each of the plurality of channels and for the processor. The direct memory access controller is responsive to a data transfer request received from one of said plurality of channels or from said processor to access one set of said corresponding control data stored in said memory, said direct memory access performing at least a portion of said data transfer requested in dependence upon said accessed control data.

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