User manual
24 www.xilinx.com Virtex-II Prototype Platform
1-800-255-7778 UG015 / PN0401974 (v1.1) January 14, 2003
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12. Prototyping Area
The prototyping area accommodates 0.10" spaced ICs. The kit contains headers that can be
soldered to the breakout area, if desired. Power and ground buses are located at the top
and bottom, respectively, of the prototyping area.
13. V
CCO
Supply Jumpers
Virtex-II series devices have eight SelectIO banks, labeled 0 through 7, each with a V
CCO
supply. VCCO_EN supply jumpers can connect each bank to one of the three on-board
supplies, V
CCINT
, V
CCO
, or externally from V
IO
. These jumpers must be installed for the
Virtex-II device to function normally.
14. VBATT
An on-board battery holder is connected to the VBATT pin of the DUT. If an external
power supply is used, the associated jumper must be removed. Select a 12 mm lithium coin
battery (3V), such as part numbers BR1216, CR1216, and BR1225 from Panasonic or any
other appropriate 12 mm lithium coin battery (3V).
15. Oscillator Sockets
The prototype board has two crystal oscillator sockets, both wired for standard LVTTL-
type oscillators. These sockets connect to the DUT clock pads as shown in Table 8. On-
board termination resistors can be changed by the user. The oscillator sockets accept both
half- and full-sized oscillators and are powered by the 3.3V power supply.
16. Function Generator Clock Inputs
In addition to the oscillator sockets, there are two 50Ω SMB connectors that allow
connection to an external function generator. These connect to the DUT clock pads as
shown in Table 9.
Table 8: OSC Clock Pin Connections
FG256 FG456 FG676 FF1152
Label
Clock
Name
Pin
Number
Clock
Name
Pin
Number
Clock
Name
Pin
Number
Clock
Name
Pin
Number
OSC Socket Top GCLK0S D9 GCLK0S D12 GCLK0S F14 GCLK7P K18
OSC Socket Bottom GCLK3S N9 GCLK3S W12 GCLK3S AA14 GCLK4P AF18
Table 9: SMB Clock Pin Connections
FG256 FG456 FG676 FF1152
Label
Clock
Name
Pin
Number
Clock
Name
Pin
Number
Clock
Name
Pin
Number
Clock
Name
Pin
Number
SMB Top GCLK1P C9 GCLK1P E12 GCLK1P G14 GCLK6S J18
SMB Bottom GCLK2P P9 GCLK2P Y12 GCLK2P AB14 GCLK5S AG18