Specifications

6
Figure 6. Lists the tests that are selectable and their status. Status bubbles indicate
successful completion, failure, or incompletion.
After defining the test environment
through the test setup loop, you
are presented with only those
tests that are appropriate for the
environment chosen. For instance,
if spread spectrum clocking (SSC)
is not enabled, then no SSC tests
will appear. This is the case for the
optional settings of pre-emphasis and
levels as well. If your device definition
is one lane only, or your defined
device connection is one lane (one
differential probe or two single-ended
connections) then no inter-pair skew
tests will appear in the test suite. This
dynamic filtering simplifies your job
by ensuring you attempt to test only
what is possible for the DUT and the
connection model you have chosen.
The DP 1.2b test suite is shown in
the Test Selection screen is shown in
Figure 6. It is partitioned in groups of
tests as a function of the pattern that
is required to test. HBR (2.7 Gb/s)
and RBR (1.62 Gb/s) bit rates require
PRBS7 and D10.2 patterns while HBR2
(5.4Gb/s) require special patterns
such as the HBR2 compliance test
pattern that has a repetition length of
2520 bits (referred to as ‘CP2520’ or
‘HBR2CPAT’). Tests may be selected
independently and any number of tests
may be selected for a given run. If
more than one lane is possible to run
(as determined by the selections in
Setup) then test selection by lane is
also possible. If different connections
or conditions of test are required from
one test to another, a splash screen
is presented to the user indicating the
required change. When automation
mode is used with the AUX Channel
Controller, the device is changed
automatically and there is no need for
the splash screens
Test Selection
Figure 5: Channel Assignment Setup: Lane and oscilloscope assignment: 2 Lane
Single-ended Connection using all four scope channels.