Method and apparatus for probing a computer bus
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United States of America Patent
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-
Mar 4, 2008
Grant Date -
Jan 13, 2005
app pub date -
Jul 8, 2004
filing date -
Jul 8, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The subject invention facilitates the efficient operation of the disassembly of the microprocessor bus by providing an apparatus and method for detecting and correcting a strobe phase inversion and predrive filtering in a 2.times. source synchronous data transfer bus. Apparatus according to the subject invention detects a data strobe inversion in a source synchronous 2.times. data bus and corrects for this inversion by reordering the received data as well as filtering predrive effects in real time. Specifically, this apparatus according to the subject invention monitors bus traffic in a multiprocessor environment and correctly captures all double data rate exchanges regardless of the source IC or destination IC in the system.
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