System for DMA block data transfer based on linked control blocks
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United States of America Patent
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-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Jan 13, 1989
filing date -
Jan 13, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A DMA controller has an attached, dedicated memory. Data objects are stored on the heap and connected by pointers. Each data object contains DMA block transfer control parameters. A single block transfer made up of several separate transfers, with each separate transfer defined by one data object. The single block transfer is defined by linking several data objects into a list. The DMA controller consecutively performs the transfers in a linked list without requiring control by a system central processor.
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