Apparatus for direct device-to-device data transfer

Details Apparatus for direct device-to-device data transfer Apparatus for direct device-to-device data transfer

G - Physics

06

F

354/232

G06F 3/00 (2006.01) G06F 15/16 (2006.01)

Patent

CA 1145854

ABSTRACT Under the I/O protocol required by conventional computer architectures, peripheral devices communicate with each other via the CPU of a host computer. That requirement necessitates two separate data transfers and cuts the data transfer rate by one-half. This invention discloses a data processing system having an architecture that will allow high-speed direct device-to-device data transfers independently of a computer memory. The system consists of a host computer interconnected with a remote signal processing subsystem. A Direct Device Access Bus and a plurality of data processing devices are provided. A controller associated with a Signal Processing Subsystem supervisor, selectively interconnects desired ones of a set of data processing devices via the Direct Device Access Bus to provide direct communication between -the selected devices within a set. Several sets of devices can be serviced concurrently by the technique of dynamic time slot allocation. mg/

360075

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