Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing
Reexamination Certificate
2006-10-31
2009-12-29
Sorrell, Eron J (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Direct memory accessing
C710S030000
Reexamination Certificate
active
07640377
ABSTRACT:
In a send engine of a protocol/DMA control circuit, a descriptor control circuit obtains a descriptor, and notifies the information of the descriptor to each circuit. A dummy/padding generation circuit generates a data pattern according to the instruction of the descriptor. A write control circuit performs data transfer using the generated data pattern as a dummy transfer data according to the instruction of the descriptor. The write control circuit also inserts the generated data pattern into the transfer data as a padding data according to the instruction of the descriptor, and performs data transfer.
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Arataki Nina
Matsuda Shinnosuke
Fujitsu Limited
Sorrell Eron J
Staas & Halsey , LLP
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