Data tracing apparatus
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United States of America Patent
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Apr 27, 1999
Grant Date -
N/A
app pub date -
Dec 17, 1996
filing date -
Jun 20, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A data tracing apparatus includes a data storing unit having a first area and a second area, for storing data corresponding to a predetermined number of bus cycles, a data writing/reading controlling unit for writing data alternatively to the first area and the second area for each of the predetermined number of bus cycles and for reading data stored in an area which is not subject to writing and within first area and the second area, reading being faster than writing, a dynamic memory for successively storing data read from the data storing unit by the data writing/reading controlling unit, and a refreshing unit for refreshing the dynamic memory after reading by the data writing/reading controlling unit.
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