Teledyne LeCroy USBTracer_Trainer - Users Manual - Manual (Page 32)

Chapter 1: Overview USB Protocol Suite User Manual
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LeCroy Corporation
Physical Components
• High impedance tap: Inserts non-intrusively in any branch of a USB system
• 128 MB of physical data-recording memory
• Two recording channels: one for High-Speed traffic and one for Classic-Speed traffic
(either Low-Speed or Full-Speed)
• Secondary recording channel for development of multiple speed functions
up-stream and down-stream of a speed-matching hub or transaction translator
• Convenient “Detach Device” switch operates with the Classic recording channel to
save time and reduce USB cable/connector wear for multiple connects and
disconnects to host
• Full-speed USB connection to desktop or portable host PC
• Internal wide-range AC power supply
• Breakout board (included)
Recording Options
• Triggering on all USB2.0 PIDS and special tokens (such as ERR, SPLIT, PING,
NYET, DATA2, and MDATA).
• CATC Trace display and enumeration of USB2.0 Micro Frames
• Three forms of triggering: Snapshot, Manual, and Event
• High, Full, and Low speed traffic capture
• Adjustable buffer size from 0.1 MB to 128 MB
• Versatile triggering: bit-wise value and mask data patterns up to sixteen bytes wide
for Setup transactions and data packets
• Triggering on multiple error conditions: PID bad, bit stuffing bad, CRC bad,
end-of-packet bad, babble, activity loss, frame length violation, time-out or
turn-around violation, and data toggle violation
• Transaction sequencer: Allows triggering on a token qualified by a data pattern
and/or specific handshake, or can filter transactions.
• Advanced triggering with event counting and sequencing
• Dedicated trigger for recording input and output that is used to interface to external
test equipment
• Real-time traffic capture filtering and data packet truncation variable up to 245 bytes