Xilinx VC7203, User Manual

Page: 12 / 64

12 www.xilinx.com VC7203 GTX Transceiver Characterization Board
UG957 (v1.0) October 10, 2012
Chapter 1: VC7203 Board Features and Operation
Caution!
Do NOT apply power to any of the FPGA logic power supply jacks without first disabling
the associated regulator or regulators. Failing to disable the regulator can damage the board.
Each onboard FPGA Logic regulator can be disabled by using its respective Power
Regulation jumper (callout
17 , Figure 1-2 ) shown in Table 1-3 . A regulator is disabled by
moving its Power Regulation jumper from POR_B to RESET.
Default Jumper and Switch Positions
A list of jumpers and switches and their required positions for normal board operation is
provided in
Appendix A, Default Jumper Settings .
Monitoring Voltage and Current
Voltage and current monitoring and control are available for FPGA logic and transceiver
power rails through Texas Instruments' Fusion Digital Power graphical user interface
(GUI). The three onboard TI power controllers (U9 at PMBUS address 52, U10 at PMBUS
address 53, and U11 at PMBUS address 54) are wired to the same PMBus. The PMBus
connector, J26 (callout
20 , Figure 1-2 ), is provided for use with the TI USB Interface
Adapter PMBus pod and associated TI GUI.
References
More information about the power system components used by the VC7203 board are
available from the Texas Instruments digital power website
[Ref 1] .
7 Series GTX Transceiver Power Module
The 7 Series GTX transceiver power module (callout 19 , Figure 1-2 ) supplies MGTAVCC,
MGTAVTT and MGTVCCAUX voltages to the FPGA GTX transceivers. Four 7 Series GTX
power modules from four third-party vendors are provided with the VC7203 board for
evaluation. Any one of the four modules can be plugged into connectors J66 and J97 in the
outlined and labeled power module location shown in
Figure 1-4 .
Table 1-3: FPGA Logic and GTX Transceiver Rails
Power Rail
Net Name
External Supply
Jack(s)
Power
Regulation
Jumper
FPGA Logic
VCCINT J32, J178 J199
VCCAUX J33 J201
VCCBRAM J35 J200
VCCAUX_IO J34 J203
VCCO_HP J40 J202
VCCO_HR J196 J204
GTX Transceiver
MGTAVCC J105 None
(1)
MGTAVTT J106 None
(1)
MGTVCCAUX J107 None
(1)
Notes:
1. 1.The GTX power module must be removed before providing external power to
any of the transceiver rails (see 7 Series GTX Transceiver Power Module, page 12 ).