Direct memory access controller and method of filtering data during data transfer from a source memory to a destination memory
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United States of America Patent
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Jun 7, 2005
Grant Date -
N/A
app pub date -
Jul 31, 2002
filing date -
May 24, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A direct memory access controller includes a source memory controller for controlling a source memory, a destination bus controller for controlling the transfer of data to a destination memory, a first-in-first-out memory buffer for receiving data from the source memory, and a filter connected upstream of the first-in-first-out memory buffer for comparing the source memory data to a filter criterion and passing to the first-in-first-out memory buffer only that data which matches the filter criterion.
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