Link Layer Tests
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The test fails if the PUT does not transition to SS.Inactive after
tPortConfiguration calculated test time (20.6us).
The test fails if the PUT transitions to SS.Inactive before tPortConfiguration
deadline (20us), or sends any other packets or LFPS signals at this point.
Specification Reference
Section 7.5.6.2#10, 11
7.18
Low Power Initiation for U1 Test (Downstream
Port Only)
Test Summary
This test verifies that the PUT initiates the U1 state
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.
2.
Examiner application prompts the test operator to enable and configure the U1 and U2
inactivity timers through USB30CV. CV will set the U1 Timeout field to 7Fh and the U2
Timeout field to 00h.
3.
Examiner waits to receive an LGO_U1 from the PUT.
4.
Examiner transmits an LXU, when it receives the LGO_U1.
The test fails if the PUT sends LPMA (in reply to the LXU).
5.
Examiner waits for receiving LGO_U1 from the PUT again.
6.
Examiner transmits an LAU, when it receives the LGO_U1.
The test fails if the PUT does not send an LPMA.
The test fails if the PUT does not transition to U1.
7.
Examiner transmits the U1 Exit LFPS to transition to U0 and waits to receive U1 Exit LFPS
from the PUT.
The test fails if the LFPS handshake does not conform to the following
specifications from section 6.9.2:
