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Protocol errors descriptions – Teledyne LeCroy Sierra M6-4 SAS_SATA Protocol Analyzer User Manual User Manual

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Sierra M6‐4 SAS/SATA Protocol Analyzer User Manual

71

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Teledyne LeCroy

Protocol Errors Descriptions

SMP Response Time Limit: is outside the specification requirements.

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 R_OK, or
X_RDY and R_RDY. It expects device (or host) to send a response, but response is not
received after 65000 DWORDs. You can configure Primitive Response Timeout and HOLD/
HOLDA Response Timeout in the Settings tab Analyzer Settings section.

Frame Type Error: Wrong frame type.

Frame Length Error: Reported frame length is different than actual frame length.

Frame Direction Error: Wrong frame direction. For example, Register Device to Host
coming from the host machine.

CRC Error: CRC error detected.

ACK/NAK Timeout [SAS only]: ACK or NAK primitive missing or encountered
unexpectedly.

Delimiter Error: Detects two SOF primitives without an EOF between them. Also detects
two EOF primitives without an SOF between them.

Radio Buttons: All, SSP, SMP and STP ‐ By selecting one of these radio boxes you can
specify that you want to trigger(or filter) on a specific protocol error on a specified frame
type. If you check CRC error and select the SSP radio button, if a CRC error occurs on a
SMP frame, the analyzer does not trigger on it.

Hashed Destination SAS Address (SSP trigger only): Specify the destination address for
the analyzer to locate specific protocol errors.

Hashed Source SAS Address (SSP trigger only): Specify the source address for the
analyzer to locate specific protocol errors.