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Anomaly Detection
The PCI850 continuously monitors and detects over 100 protocol and
timing violations. Dedicated hardware checks setup and hold times,
unstable signals and glitches on lines. Protocol checking screens for
illegal signal assertions referenced to the PCI specification.
Anomaly Display
The anomaly display is divided into 2 windows;
Anomaly Checklist
Test Results
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Anomaly
Checklist
The anomaly checklist window allows selection of specific tests. Set
All and Clear All buttons are provided to select all the tests and clear
all the tests. The checklist can be saved and later loaded.
Test Result Window
After starting the anomaly test the result window displays all
violations detected. The user can scroll through these results as well as
save them to a file.
State/Timing Display
During state and timing analysis violations are stored in the trace
buffer as selected in the checklist. A description of the violation can be
selected for display in the state and timing windows.
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To
include this information in a state or timing display simply select the
Bus Wizard decoded signal. The Bus Wizard displays a short description of
the error. Highlighting the error displays a complete description of the
anomaly.
Trigger and Filter Setup
Any anomaly can be selected as a trigger or filter when tracing bus
activity. When used as a trigger this provides a view of activity that
lead up to the error. Selecting anomalies for a filter allows the user to
trace only errors detected by the anomaly checker.
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