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22 Sept 2016
v1.1
3.5 JP1 – FPGA VBAT (VCCBATT)
JP1 is a non-populated 100 mil dual pin connector. Use this connection to provide battery
backup power for the FGPA’s internal volatile memory that stores the key for the AES
decryptor. If using this connection, the SOM will require a resistor to be removed. Please see
the appropriate SOMs User Guide (choose the latest revision):
http://picozed.org/support/documentation/4736
NOTE: The voltage input to this connector MUST NOT EXCEED 2.0V or FPGA damage may
result. This connection should be to a power supply or 1.5V battery. The positive voltage is
attached to pin 1, labeled “+BAT”. Ground is attached to pin 2, labeled “GND”. See below
figure.
Figure 22 – JP1 VBAT connector
3.6 VADJ selection - JP5
VADJ rail is configurable via JP5. VADJ is an independent rail supplying power to the Zynq PL
I/O banks and connected Pmods. VADJ drives banks 34 and 35
.
WARNING: When using a 7030 SOM, VADJ MUST remain at the
1.8V setting otherwise the SOM will be damaged!
Use the table below for Vadj selection.
NOTE: if JP5 is left open, the board defaults to +1.8V VADJ rail setting.
JP5 Jumper Position (pins)
VADJ
1-2 or Open
1.8V
3-4
2.5V
5-6
3.3V
Table 20 – VADJ Selection Table JP5