Teledyne LeCroy SAS Sample Test Suite - Manual (Page 15)

SAS Sample Test Suite
Error Conditions – Frames Sent to Initiator (Test Group B) 15
Figure 2 - NAK response from Initiator
ACK/NAK Timeout detected after sending frame (TestB.2)
Target device shall send a Response frame with Check Condition status, sense key = Aborted
Command, and additional sense code = ACK/NAK TIMEOUT. This Response frame shall be sent in
a new connection.
Test Procedure:
1. Power on the DUT.
2. The Testing Station is instructed to start and complete a phy Reset sequence
followed by an Identify sequence with the DUT. Since the DUT is a target, the Testing
Station is instructed to transmit an Identify Address frame indicating that it is a SAS
Initiator.
3. The Testing Station is instructed to open an SSP connection to the DUT and transmit
a SCSI MODE SENSE command for the Disconnect-Reconnect Mode Page. Close the
connection
SSP Link
SAS Protocol
Initiator/Test Station Target Primitive Logic Target Protocol Logic
ACK Primitive
SSP Link
Write Command
NAK Primitive
ACK Primitive
XFER_READY
Frame
SAS Protocol
Response Frame
Sense Key=ABORT
COMMAND
SSP Link