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18 memory settings, Trigger position – Teledyne LeCroy Sierra M6-2 SAS_SATA Protocol Analyzer User Manual User Manual

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Sierra M6‐2 SAS/SATA Protocol Analyzer User Manual

103

Projects

Teledyne LeCroy

Figure 2.70: SAS: Setting Project Options

SAS vs. SATA: For the ALIGN Transmission Period section, SATA Dialog shows options 256
and 258, and does not show 2048 or 2049.
For Speed, SATA Dialog shows H1, D1 to H2, D2 and does not show I1, T1 to I2, T2.
SATA Dialog does not show MUX Setting button.

SATA dialog shows DevSlp min detection time field to enter the debouncer value.

2.6.18

Memory Settings

The Trace Memory Status section has the following fields.

Trigger Position

Pre‐Trigger memory defaults to 50%, which defines the percentage of data to capture
before and after the triggering event. You can change this percentage by dragging the
slider.

Capture of the specified percentage of the data prior to the triggering event cannot be
guaranteed and may be 0. This can occur if the triggering event occurs before storing the
required amount of pre‐trigger event data. In such a case, the data display shows fewer
than the specified data points prior to the triggering event. For more detail, (see

“Pre‐

Trigger” on page 102

.)

Note:

Trigger Position only works when the triggering option is Pattern.