User`s guide

Save Mask - Opens a dialog box for saving the open mask.
Scale to Fit - Once the settings are selected, pressing this button will scale the eye mask as a percentage of the actual
signal displayed.
Select Button - Pressing on the Select Button highlights one of the displayed Markers and allows the user to move the
marker using the dial.
Serial ATA Specifications - This selection enables the specification levels to be set for the proper measurement point.
The specification has requirements for DJ and TJ at the following 4 measurement points (Driver Output, Driver PCB
Connector, Receiver PCB Connector, Receiver Input)
Setup/Hold Limits - Choose between typical setup and hold limits and worst case setup and hold limits. "Typical"
references the Mean of the clock histogram. "Worst case" references extrapolated Min and Max values of the
measured clock histogram using Tail-fit.
Setup Time (ns) - Enter the setup time specification. This will change the darkened area on the Data Histogram plot,
showing a window of pass or fail.
Share drive on network - Share the drive from this instrument making it available to the local network.
Show Derivative - Plots the difference between the current measurement and the previous measurement.
Show Grid command (Display menu) - If checked/selected, vertical and horizontal grid lines will be displayed on the
activated plot.
Show Measures - Toggle the statistics of the histogram samples on or off.
Show Pattern on Plot - Toggles the pattern on/off for the display.
Show Peak-to-Peak Bars - Show peak-to-peak values of a histogram for each period measured.
Show Spec Limit – Enables the specification limit selections/parameters.
Shutdown command (Tool menu) - Use this command to close all tools and end your GigiView session. You can also
use the Close command on the application Control menu. Any changes not saved will be lost.
SIA Channel - Selects the SIA (or DTS) input channel.
Signal Analysis button – Provides options for Voltage Histograms, Eye Mask, Voltage measurements and Rise/Fall times.
Single/Stop command (Action menu) - Use this command to acquire a single measurement in GigiView. It
is also used to stop a series of measurements from being taken after the Run command is issued. This
command affects the current tool only. Shortcut Keys: F6
Span (edges) - Determines number of edges of span to be measured.
Specifications Options - The Specifications Options permits the user to set up a window in the histogram view that
characterizes an area where the signal will pass or fail a user-defined specification.
Spec Mode - In AUTO mode, the software will first measure the average period to determine the clock frequency.
Then, based on the frequency, the appropriate spec is chosen:
533MHz Æ +/-50ps
400MHz Æ +/-50ps
300MHz Æ +/-70ps
267MHz Æ +/-80ps
In USER DEFINED mode, the spec can be set to any value in the USER VALUE field.
Speed - Select either 1X or 2X. Speed is dependent on Protocol setting.
Protocol Speed = 1X Speed = 2X
Fibre Channel (FC) 1.0625 Gb/s 2.125 Gb/s
Gigabit Ethernet (GBE) 1.25 Gb/s 2.5 Gb/s
SSC Frequency Samples - Sets the number of samples taken for each histogram when determining the point (between
the min. ssc freq and the max ssc freq) where the PPM measurement will be performed. Also determines the SSC
frequency.
Standard - Selects the high-level protocol settings.
© WAVECREST Corporation 2005 Glossary
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