Circuit for processing trace information
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United States of America Patent
Stats
-
Jan 27, 2004
Grant Date -
N/A
app pub date -
Oct 1, 1999
filing date -
Oct 1, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for performing non-intrusive trace is provided which receives trace information from one or more processors. The trace system may be configured by a user to operate in various modes for flexibly storing or transmitting the trace information. The trace system includes a FIFO which is memory-mapped and is capable of being accessed without affecting processor performance. In one aspect, the trace system includes a trace buffer which receives trace information at an internal clock speed of the processor. In another embodiment, a compression protocol is provided for compressing trace messages on-chip prior to transmitting the messages to an external system or storing the messages in memory.
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- Non-US Classification not provided for expired patents
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