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KC705 Evaluation Board
11
UG810 (v1.3) May 10, 2013
Feature Descriptions
I/O Voltage Rails
There are 10 I/O banks available on the Kintex-7 device. The voltages applied to the FPGA
I/O banks used by the KC705 board are listed in
.
X-Ref Target - Figure 1-4
Figure 1-4:
Encryption Key Backup Circuit
UG810_c1_100_030812
GND
2
1
B1
Lithium Battery
Seiko
TS518SE_FL35E
2
1
3
BAS40-04
D11
40V
200 mW
NC
FPGA_VBATT
+
VCCAUX_IO (2.0V
R406
4.70K 1%
1/16W
To FPGA U1 Pin C10
(VCCBATT)
Table 1-3:
I/O Voltage Rails
U1 FPGA
Bank
Power Supply Rail
Net Name
Voltage
Bank 0
VCC2V5_FPGA
2.5V
Bank 12
VADJ_FPGA
2.5V (default)
Bank 13
VADJ_FPGA
2.5V (default)
Bank 14
VCC2V5_FPGA
2.5V
Bank 15
VCC2V5_FPGA
2.5V
Bank 16
VADJ_FPGA
2.5V (default)
Bank 17
VADJ_FPGA
2.5V (default)
Bank 18
VADJ_FPGA
2.5V (default)
Bank 32
VCC1V5_FPGA
1.5V
Bank 33
VCC1V5_FPGA
1.5V
Bank 34
VCC1V5_FPGA
1.5V
Notes:
1. The VADJ_FPGA rail can support 1.8V, 2.5V, or 3.3V. For more
information on VADJ_FPGA see
.