System core for transferring data between an external device...

Details System core for transferring data between an external device... System core for transferring data between an external device...

2007-09-04

2007-09-04

Shin, Christopher (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S308000

Reexamination Certificate

active

10797726

ABSTRACT:
A system core having an internal memory which transfers data from an external device to the internal memory is described. To this end, the system core includes a processor, a direct memory access (DMA) controller, an instruction memory and a plurality of memories. The instruction memory contains processor instructions and DMA instructions. The DMA controller fetches DMA instructions from the instruction memory. The DMA controller executes the fetched DMA instructions and thus populates the plurality of memories with data from the external device. The processor then operates on the data found in the populated memories.

REFERENCES:
patent: 4475155 (1984-10-01), Oishi et al.
patent: 5179689 (1993-01-01), Leach et al.
patent: 5822616 (1998-10-01), Hirooka
patent: 6944683 (2005-09-01), Barry et al.

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