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Link Layer Tests
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2.
Examiner transmits the Set Link Function LMP with the Force_LinkPM_Accept bit asserted.
3.
Examiner transmits LGO_U1 and waits to receive an LAU from the PUT.
The test fails if the PUT does not send an LAU.
4.
Examiner transmits an LPMA and then transitions to U1.
The test fails if the PUT does not transition to U1, or if the PUT sends any
packet at this point.
5.
Examiner waits 50ms from U1 entry then transmits a U1 Exit LFPS to transition to U0, then
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:
Between 300ns – 900ns elapses between the start of Examiner U1 Exit LFPS and
the start of the PUT U1 Exit LFPS.
The PUT U1 Exit LFPS duration is within 600ns – 900ns.
Specification Reference
Sections 7.2.4.1.1#7,9 ● 7.2.4.2.1#4 ● 7.2.4.2.2#2,3 ● 7.2.4.2.3#2,8,9 7.2.4.2.7#2,3 ●
7.5.5.1#2 ● 7.5.5.2#2 ● 7.5.7.1#2 ● 7.5.7.2#2 ● 8.4.2#1
7.24
Accepted Power Management Transaction for U2
Test (Upstream Port Only)
Test Summary
This test verifies that the PUT transitions to U2 if it receives an LGO_U2.
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 transmits the Set Link Function LMP with the Force_LinkPM_Accept bit asserted.
3.
Examiner transmits an LGO_U2 and waits to receive an LAU from the PUT.
The test fails if the PUT does not send an LAU.
