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Sierra M6-2 SAS/SATA Protocol Analyzer User Manual
SAS vs. SATA:
SATA Dialog shows Port at the top and does not show SSP or STP.
Define the data pattern for capture or exclusion from capture and click
OK
.
Note:
When entering the data pattern in the “Data” section of this screen, if you are reading the data
pattern from a recorded trace, you must reverse the order of the bytes listed for each DWORD
entered. For example, if you want to capture (or exclude) “00 01 02 03” (as displayed in the
trace), you must enter this pattern as “03 02 01 00”.
Protocol Errors
Double-click Protocol Errors to open the Protocol Errors selection dialog.
Figure 2.21: SAS: Protocol Errors Dialog
SAS vs. SATA:
SATA dialog does not show ACK/NAK Timeout and has FIS signal-latency
and state-transition errors, not STP ones.
Check protocol error(s) to omit or not capture, then click
OK
.
Protocol Error Descriptions
Code Violation
: Wrong 10b symbol detected.
Disparity Error
: Wrong disparity detected.
ALIGN Error
: ALIGN primitive frequency is outside the specification requirements.
STP Signaling Latency Error [SAS only]
or
FIS Signaling Latency Error [SATA only]
:
DWORD difference between HOLD and HOLDA is greater than entered value in the HOLD/
HOLDA Response Timeout field.
STP Invalid State Transition (Unexpected Primitive) [SAS only]
or
FIS Invalid State
Transition (Unexpected Primitive) [SATA only]
: Second SATA_SOF is encountered before
SATA_EOF, and other unexpected primitives.
STP Invalid State Transition (Primitive Timeout) [SAS only]
or
FIS Invalid State Transition
(Primitive Timeout) [SATA only]
: Timeout between two paired primitives is above
entered value. 65000 DWORDs is default. For example, it can occur between WTRM and