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Keysight N5990A-301 PCI Express Link Training Suite User Guide
5
Using the Software
Figure 23
DUT Tx Target Preset with cursors
The option “Encoded Lane Number“ (on the main window), lets you
define the lane number that is encoded in the Training Pattern. The
default value is “Lane 0". To run link training on another physical
port of the DUT, connect that port to the J-BERT, while retaining
that lane number as
Lane 0
. However, some DUTs require that the
lane number must be set to the corresponding physical port
number.
The option
Encoded DUT Preset Request
lets you define the
equalization preset that is requested for the DUT.
The option “Use Gen3 EIEOS” is available for Gen4. When a Gen4
DUT is implemented against PCIe4 spec revision 0.5, it needs Gen3
EIEOS for 16GT/s and you must select this option. If it is
implemented against PCIe4 spec revision 0.7 or higher, it needs
Gen4 EIEOS for 16GT/s.
