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Link Layer Tests
Ex
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order to have a known and defined behavior.
Combinations to be tested:
Data Start Framing
ERR
SDP SDP EPF
(incorrect symbol is D0.0)
SDP
ERR
SDP EPF
(incorrect symbol is D0.1)
SDP SDP
ERR
EPF
(incorrect symbol is D0.2)
SDP SDP SDP
ERR
(incorrect symbol is D0.3)
Data End Framing
ERR
END END EPF
(incorrect symbol is D0.0)
END
ERR
END EPF
(incorrect symbol is D0.1)
END END
ERR
EPF
(incorrect symbol is D0.2)
END END END
ERR
(incorrect symbol is D0.3)
Test Steps and Expected Results
1.
Examiner executes the steps described in TD7.1 (Link Bring-Up Test) to bring the link to
U0. At this stage the Downstream Port (either Examiner or the host port under test) is
expected to issue a Get Device Descriptor request.
If Examiner is configured as an Upstream Port:
a.
Examiner prompts the test operator to have the PUT send a GetDeviceDescriptor
request through a USB30CV prompt and then press “OK”.
When Examiner receives the GetDeviceDescriptor request, it closes its
prompt.
b.
Examiner will respond to the request correctly, but will send the DPP containing the
Device Descriptor data with the first framing error listed above.
The test fails if no GetDeviceDescriptor request is received (assuming the test
operator has pressed “OK”).
