VSC8257/VSC8258 Evaluation Board
ENT-AN1280 VPPD-04670 ENT-AN1280 User Guide Revision 1.3
11
Figure 11 • GUI KR Status Page
When the line side is connected to a link partner through a backplane, the KR mode could be enabled by
clicking on
first and then
. The user will see the green light move and it should
config KR
KR enable
eventually reside at AN_GOOD state and indicate KR (10G) is negotiated. The values of the resulted C-1,
C0, and C+1 will also be updated at the Tx Tap Values box.
5.10
I/O Control
The following image shows the I/O control page.
Figure 12 • GUI I/O Control Page
On this page, the user can adjust the pre-cursor, main cursor, and post-cursor of the transmitter of each
lane. On the receiver side, the default mode is for SR/LR/ER. To have the mode support DAC, the user
can enable it by clicking on
. The summation of the Cm1, C0, and Cp1 must not
Configure for Rx DAC
exceed 31 and the user has to maintain this restriction.
5.11
Clocking
The following image shows the clocking page.
