Teledyne LeCroy Serial Data Debug Solutions - Manual (Page 177)

Operator's Manual
919586 RevA 177
SATA Decode Trace Annotations
Like all trace annotations, SATA Decode annotations are rectangular shadings used to highlight messages on
decoded waveforms for easy viewing.
Tip: Data packets (or messages) on properly decoded protocol signals can be viewed using Serial Decode Trace
Annotations (on page 18), the Protocol Results Table (on page 19), and/or by Searching for Messages (on
page 21) (Types and Subtypes). Using these tools together provides fast insight to your data. See Serial Decode
Trace Annotations (on page 18) for more information.
Messages shown as annotations, table columns, and search types for most protocols are classified into Frames,
Errors, Unknown, or Grouped Primitives specific to the protocol. Sub Types then further classify each main
message type into more protocol-specific messages.
Decode annotations unique to SATA include the following (some annotations are not shown in the screen-shot):
SATA Decode Annotations

Frame - An indivisible unit of information exchanged between a host and device. A frame consists of SOF,
a Frame Information Structure, a CRC calculated over the contents of the FIS, and EOF.

X_RDYs - Transmission data ready.

WTRMS - Wait for frame termination.

Logical Idle - Period of one or more symbol times when no information (packets or link commands) is
being transmitted.

OOB - Out of Band Signaling.

Speed Negotiation - Signal sent to the host to indicate a change in speed.

Electrical Idle - Electrical Idle is a steady state condition where the transmitter Txp and Txn voltages are
held constant at the same value.

Protocol Error - Frame error using CRC (Cyclical Redundancy Check).
Note: Specifications are subject to change without notice.