User manual

Virtex-II Prototype Platform www.xilinx.com 15
UG015 / PN0401974 (v1.1) January 14, 2003 1-800-255-7778
Detailed Description
R
Off Position
In the off position, the power switch disables all modes of powering the DUT in stand-
alone operation.
Downward On Position
In the downward on position, the power switch enables delivery of all power from the six
power supply jacks.
2. Power Supply Jacks
In the downward on position, the power switch enables delivery of power to the board by
way of the power supply jacks. These six jacks are:
• 3.3V
♦ Supplies power to the on-board serial PROM, to the Service FPGA and its
supporting PROM, to the two oscillators, and to all pins marked V
CC3
on the
board. This includes pins in the configuration port (user PROM and FPGA), the
prototyping area, and the V
CC3
enable jumpers
• VCCINT
♦ Supplies voltage to the core of the DUT (Consult the Xilinx data book,
http://www.xilinx.com/partinfo/databook.htm
, for the maximum V
CCINT
voltage for the device you are using)
• VCCO
♦ Supplies I/O voltages to the DUT
♦ Each can be powered from one of three sources (V
CCO
, V
CCINT
, or V
IO
) by
appropriate placement of jumpers on the header
• VCCAUX
♦ Supplies voltage to the V
AUX
header and the V
AUX
DUT pins
• VIO
♦ Supplies voltage to the V
IO
header (not to the DUT)
♦ Provides the option of an additional voltage source for the V
CCO
banks
♦ Can be driven externally or from the board
• GND
Table 1: Voltage Ranges
Label Max Voltage Min Voltage
VCCINT 1.5V 1.3V
VCCO 3.3V 2.5V
VCCAUX 3.3V 2.5V