GRL-PCIE5-CEM-RXA User Guide and MOI
Rev7.0
© Granite River Labs 2022 Version 7.0, June 2022. Updated 06.29.2022
Page 107 of 123
iii)
Set
‘
DUT Target Preset (Change Preset)
’
to
‘
P9
’
iv)
Click on
‘
Apply
’
v)
From the
‘
Option
’
button, set
‘
CTLE Gain
’
to
‘
0.0 dB
’
on the
‘
PPG / ED
’
tab.
4.
Before
executing ‘
Link Start
’ of the
MX183000A, turn the Re-Driver ON and set equalization
parameters to
‘
EQ_P0
’
first, as shown in Section 10.4.
5.
Execute
‘
Link Start
’
of the MX183000A.
6.
Establish Loopback.
i)
If
the ‘
Linkup Speed
’
is not
‘
32.0 Gbps
’
and the
‘
LTSSM State
’
is not
‘
Loopback.Active.Lead
’
, increase the EQ preset of the Re-Driver (as such: EQ_P0
→
EQ_P4
→
…
→
EQ_P20) by four steps and re-execute Link Training. Confirm every time
whether Loopback is established through the LTSSM State displayed.
ii)
If Loopback cannot be established even if EQ is set to
‘
EQ_P20
’
, set the Preset setting of
step 3 ii) / 3 iii) to
‘
P8
’
, set EQ to
‘
EQ_P0
’
, and check the Loopback status according to
step 6 i) again.
iii)
If Loopback cannot be established even with Preset 8, redo step 6 ii) with P7, P6, ... P0.
iv)
Check the Preset and EQ settings for which Loopback was established in steps 6 i) to 6
iii).
v)
If Loopback cannot be established up to step 6 iv), remove ISI from the measurement
system and execute steps 6 i) to 6 iv).
