Vmetro VBAT-PB, User Manual

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The Bus Analyzer concept
A Bus Analyzer is a pre-configured logic analyzer designed as a plug-in card for a
specific bus, conforming to the electrical and mechanical specification of the target bus.
The primary use of a Bus Analyzer is to monitor the activity on a backplane bus and
provide a trace of bus cycles between modules on the bus, presenting this as alphanumeric
trace lists or as waveforms on a standard ASCII terminal. This is done without the need for
connecting and configuring large numbers of probes to the backplane, a time-consuming
and error-prone process necessary with general-purpose logic analyzers. Statistics analysis
in bus systems is also an important application of bus analyzers.
A basic idea behind bus analyzers is that the analyzer is "hard-wired" to capture the
protocol of the target bus, thereby reducing the need for the user to understand all the
details of the bus protocol in order to perform meaningful analysis of activity in the target
system. This offers the user maximum productivity and convenience during development,
debugging, testing and verification of bus based computer systems.
VMETRO is a company totally committed to building the finest Bus Analyzers, and
is recognized in development labs around the world as providing superior tools for
developers and manufacturers o f bus based computer equipment. With the VBT-325,
VMETRO offers the fourth generation, state-of-the art product based on 10 years o f
experience in building bus analyzers.
UM ETRO
The Bus Analyzer Specialist
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