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Sep
4, 2007 (Rev 2.1s)
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TB-5V-LX110/220/330-DDR2Hardware User Guide Rev2.1s
VBATT_0 Level Setting
Virtex-5 has the function of configuration encryption. If encryption is used, it needs to provide a
power supply to VBATT.
It is possible to change the power supply of VBATT_0 (R29) of FPGA to ‘H’ (3.3V) or ‘L’ (GND)
using JP4.
Figure.32 JP4 setting for VBATT_0 Level Selection
Others
There are ten of GND test points. It is useful to use oscilloscope and so on. (TP2 ~ TP11)
Figure.33 GND Test Point
VBATT_0 “L“
VBATT_0 “H“