VSC8489/VSC8490/VSC8491 Evaluation Board
VPPD-03745 VSC8489/VSC8490/VSC8491 User Guide Revision 1.0
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Quick Start
The following items are recommended for use during an evaluation of the EVB:
VSC8489/8490/8491 Evaluation Board (included in the kit)
USB cable (included in the kit)
Wall AC adaptor (included in the kit)
GUI installation file (available on the website)
SR/LR SFP+ module (not included)
Fiber patch cable (not included)
Pattern generator or Protocol tester
Oscilloscope
Personal computer running Windows XP or 7
The user is advised to confirm that the following jumpers are properly configured:
Table 1 • Jumper Settings
Component
State
J82
Jumper installed between GPIO0 – GPIO1
J94
Jumper installed between SCL[0]– FPGA/uC
Jumper installed between SDA[0]- FPGA/uC
J95
Jumper installed between SCL[1]- FPGA/uC
Jumper installed between SDA[1]- FPGA/uC
J96
Jumper installed between SCL[0]- F340
Jumper installed between SDA[0]- F340
J97
Jumper installed between SCL[1]- F340
Jumper installed between SDA[1]- F340
The following steps will allow a user to bring up the VSC8490EV, receive traffic from a tester, loop traffic
internal to the device, and transmit back to the tester.
Plug the AC adaptor into a 120 V outlet and the 5 V barrel end into J89. SW2 acts as the power on
/off switch. Slide it to the on position.
Connect the USB cable to the evaluation board (J86) and to a PC.
Insert a 10 G module into U2 (Channel 0).
Connect the optical patch cable to the module and to the 10 G tester.
Install the USB driver per Section 4.1.
Install the GUI Software per Section 4.2.
Launch the GUI.
From the EVB connection window, select the matching board serial number and click
.
Launch GUI
Go to the clocking page. Choose Channel 0. In the VSC3308-Clock Switch Box, select the crystal clock
(A5- VCC6_XTAL) for the Y4 XREF clock output.
On the Main page, click the 10 G LAN mode option. This will initialize the device. Due to the speed of
the microcontroller this operation may take upwards of 2 minutes. During initialization the bottom
status bar will indicate initialization in progress. When completed, the text will change to indicate
so. Closing the GUI and re-launching without the power cycling the board or pressing the reset
button will retain the previously initialized mode.
After initialization the respective line side or the host side RX and TX PLL status will show a green
state. The 10 G protocol tester should also indicate a
link up condition. Since there is no valid data present at the XAUI receiver, end to end traffic will not
flow.
On the routing tab, enable Loopback L2 for channel 0 (R)XAUI Rx. The 10G tester should now see
valid packets at its receiver.
