Data transmission controller that restarts data transmission...

Details Data transmission controller that restarts data transmission... Data transmission controller that restarts data transmission...

2007-09-18

2007-09-18

Tate, Christopher R. (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C710S036000, C710S040000, C711S167000, C711S168000, C711S169000

Reexamination Certificate

active

10847586

ABSTRACT:
A data transfer control device including: a buffer controller which allocates a plurality of pipe regions in a packet buffer and controls access to the packet buffer; and a transfer controller which controls data transfer between the pipe regions and corresponding endpoints. The transfer controller performs processing of pausing data transfer between the pipe regions and the endpoints, the buffer controller performs reconstruction processing which includes at least one of deletion, addition, and size change of the pipe regions after the completion of the pause processing, and then the transfer controller resumes the paused data transfer after the reconstruction processing of the pipe regions. Data in the pipe regions before the reconstruction processing is copied to the pipe regions after the reconstruction processing while preventing the data from being erased.

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