Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 276)

Teledyne LeCroy Corporation Recording Options ‐ Misc. USB 3.0 for Voyager
276 USB Protocol Suite User Manual
For Recording/Generating, select Analyzer Only, Host Emulation, or Device Emulation.
For Simple Filters, you can Filter‐Out Logical Idles, Filter‐Out SKPs, Filter‐Out LUP/LDN,
Filter‐Out ITP or Filter‐Out Bus Events (LFPS, EIdle, Term).
Note: For Simple Triggers, for Downstream and Upstream triggers, you can select Logical Idle, SHP,
SDP, SLC, EPF, END, EDB, COM, SKP, K‐Code, Symbol Error, RD Error, DP Length Error, Term On,
Term Off and BCNT. 
For CRC Error Triggers, for Downstream and Upstream triggers: CRC32, CRC16, CRC5 LCW, and/
or CRC5 LC. 
For Framing Error Triggers, for Downstream and Upstream triggers: SLC, SDP, SHP, EPF. 
For Low Power States, for Downstream and Upstream triggers: U1, U2, and/or U3. For U2,
trigger only works for explicitly directed entry to U2. It does NOT work for the case when U1
times out and implicitly goes to U2, as the bus engine does not track this timeout value.
If you trigger on a CRC error type, the traffic in the trace file at or near the trigger may display as
IPS (Inter‐packet symbols), because the software might not detect proper framing symbols.
Consequently, searches for CRC errors may not find the CRC trigger location.
To cause a trigger signal to appear on the External Trigger Out facility when the simple trigger(s)
occur, select the External Trigger Out with Simple Triggers: checkbox.
For Clock/Speed Selection, select Gigabit as 5.0, 2.5, or 1.25 Gbps. For Voyager M3/Mi,
the Very Slow option allows you to customize the clocking frequency the Analyzer uses
when capturing data. You can select External or Internal (see “Very Slow Clock Usage”
section below.) Do NOT capture in 2.0 mode when 3.0 clock is in any of the slow modes.
For Termination/RxDetect (Voyager M3i and M3x USB connectors only), you can select
Auto or Manual for Analyzer Ports and Enable RxDetect for Exerciser Ports.
For Analyzer Ports, if you select the Manual mode, the Term button in the toolbar is
enabled. For more information about the Recording buttons.
Note: The Auto RxDetect mode has been designed to recognize 3.0 hosts and devices and present 3.0
terminations to them when they are plugged in. However, some cases have timing that can
cause the Host and Device not to connect or to go into USB 2.0 mode. If either of these timing
cases occurs, click the Momentary Disconnect button on the toolbar to cause a Disconnect/
Reconnect cycle of the VBus. If cycling does not work, disable and then re‐enable the xHCI Host
controller driver in the Windows 7 Device Manager of your PDK.
Truncate Data Fields ‐
Truncate the data fields in a Data Payload packet to the length specified in the pull‐down
selection. The actual amount captured is at LEAST the amount selected and may be up to
8 bytes more, depending on traffic, to increase efficiency of the Analyzer hardware.
Note: Truncating the payload will allow for more packets to fit in a trace, but it has the potential to
prevent accurate decoding to higher layers (transfers, SCSI, etc).