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Link Layer Tests
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Specification Reference
Section 7.2.4.1.10#6 ● Table 7-7
7.13
Wrong Header Sequence Test
Test Summary
This test verifies that the PUT will go to recovery when it receives a wrong header sequence
number.
Test Steps and Expected Results
1.
Do steps 1 to 4 of TD7.1 (Link Bring-Up Test), with the exception that Examiner will send
two LMP packets with Header Sequence Number set to 0 (i.e., not sequential).
The test passes if the PUT goes to recovery within tLinkTurnAround after
reception of the second LMP packet with the repeated Header Sequence
Number of 0.
The value of tLinkTurnAround is 500ns and is defined in the USB 3.0 Link
Layer Test Specification, Section 4. Please refer to that document for
details.
Specification Reference
Section 7.3.5#1
7.14
Wrong LGOOD_N Sequence Test
Test Summary
This test verifies that the PUT will go to recovery when it receives an incorrect LGOOD_N
sequence.
Test Steps and Expected Results
1.
Examiner performs steps 1 to 4 of TD7.1 (Link Bring-Up Test) to bring the link to U0, with
the exception that Examiner will send an LGOOD_0 for the first LMP packet as expected,
but will send again an LGOOD_0 for the second LMP packet.
