User`s guide

Serial ATA II Software Clock Recovery Compliance Tool
This tool is for usage models 1x, 2i and 2m and utilizes a software recovered clock model. The SATA II
Electrical Specification Rev. 1.0 describes these usage models:
Gen1x: Extended Length 1.5 Gb/s Electrical Specification or "Gen1x": These are newly developed
electrical specifications, described here, aimed at 1.5 Gb/s links in "long" backplanes and system-to-
system applications. These specifications are based upon Serial Attached SCSI Electrical specifications
(CT/CR specifications as called out in SAS).
Gen2i: Generation 2 Electrical Specifications: These are newly developed 3.0 Gb/s electrical
specifications, described here, aimed at PC motherboard to device applications.
Gen2m: Generation 2 Electrical Specifications for "Short" Backplane and External Desktop Applications:
These are newly defined 3.0 Gb/s electrical specifications aimed only at these applications. These
include only modified Transmitter and Receiver Differential Swing specifications. All other electrical
specifications relating to Gen2m compliance points are identical to Gen2i specifications. This
specification is for this limited application only and is not intended for any other system topology.
A number of changes in methodology have been implemented in SATA Gen 2 relative to SATA Gen 1.
Most significant is the adoption of a clock recovery model. This model requires measurement of jitter at
different corner frequencies: baud/10, and baud/500 for 2m and 2i and baud/1667 for 2x usage models.
Making a SATA II Software CR Compliance Measurement
Setup Directions
This tool is able to measure SATA Gen 2 compliance on any repeating data stream.
• From the Main Menu, press "Data Standards" and "Serial ATA".
• Choose the "SATA II Software CR" tool to measure Gen 2i and Gen 2m.
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