User Manual Part 2

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Merlin Protocol Analyzer User’s ManualCATC Version 1.6
9. Reading a CATC Trace
9.1 Trace View Features
• The Merlin packet view display makes extensive use of color and graphics to
fully document the captured traffic.
• Packets are shown on separate rows, with their individual fields both labeled
and color coded.
• Packets are numbered (sequentially, as recorded), time-stamped, and
highlighted to show the device status (master or slave).
• Display formats can be named and saved for later use.
• Pop-up Tool Tips annotate packet fields with detailed information about their
contents.
• Data fields can be collapsed to occupy minimal space in the display (which can
in turn be zoomed in and out to optimize screen utilization).
• The display software can operate independent of the hardware and so can
function as a stand-alone Trace Viewer that may be freely distributed.
9.2 Interpreting the Displayed Information
The following table describes the abbreviations used in the Merlin display.
Packet #0 is described from left to right:
Packet:# Packet/Event Number
T/M, T/S M =Master Device Transmitting
S = Slave Device Transmitting
Freq Current Hop Frequency (in MHz)
Pre Preamble of the Sync word