Teledyne LeCroy Serial Data Debug Solutions - Manual (Page 175)

Operator's Manual
919586 RevA 175
Proper Decode with Speed Change
The following screen-shot shows an annotation on the source trace showing a speed change.
Following a speed change.
Speed change table detail.
This speed change is captured by setting the trigger level at about 50 mV and using a Smart Trigger - negative
width greater than 150 ns. We powered on the computer containing the PCIe device under test and then, within
the first couple of seconds, pressed Arm on the oscilloscope. The speed switch happened approximately four
seconds after the PC was powered on, and the oscilloscope triggered on the Electrical Idle. This is shown by the
trigger time indicator (the triangle under the center of the top trace).
Using the SATA Option
Using the SATA Option Overview
The Serial Advanced Technology Attachment (SATA) is an evolved computer bus interface used to connect host
adapters to mass storage devices like hard disk and optical drives.
SATA's evolution has brought reduced cable-bulk and cost (reduced from 80 wires to seven), increased speed,
more efficient data transfer, and hot swapping.
Note: Ask your local LeCroy representative for more information about any Serial Data Debug Solution
Protocols or Toolkits using the Contact LeCroy for Support (on page 199) topic.