Xilinx VC709, User Manual

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50 www.xilinx.com VC709 Evaluation Board
UG887 (v1.2.1) March 11, 2014
Chapter 1: VC709 Evaluation Board Features
Configuration Mode and Upper Linear Flash Address Switch (SW11)
[ Figure 1-2 , callout 20 ]
FPGA Configuration Mode: The mode signals FPGA_M2, _M1, and _M0 are connected to
FPGA U1 pins AJ10, AK10, and AL10, respectively. Configuration mode is used at
power-up or when the PROG pushbutton is pressed.
Linear BPI Flash Upper Addresses: DIP switch SW11 positions 1 and 2 control the setting
of address bits FLASH_A25 and FLASH_A24.
Figure 1-22 shows the SW11 circuit.
Power On/Off Slide Switch SW12
[ Figure 1-2 , callout 21 ]
The VC709 board power switch is SW12. Sliding the switch actuator from the Off to On
position applies 12V power from J18, a 6-pin mini-fit connector. Green LED DS16
illuminates when the VC709 board 12V power is on. See
Power Management, page 56 for
details on the onboard power system.
Caution!
Do NOT plug a PC ATX power supply 6-pin connector into J18 on the VC709 board.
The ATX 6-pin connector has a different pinout than J18. Connecting an ATX 6-pin connector into
J18 damages the VC709 board and voids the board warranty.
The VC709 evaluation kit provides the adapter cable shown in Figure 1-23 for powering
the VC709 board from the ATX power supply 4-pin peripheral connector. The Xilinx part
number for this cable is 2600304, and is equivalent to Sourcegate Technologies part number
AZCBL-WH-1109-RA4.
X-Ref Target - Figure 1-22
Figure 1-22: Configuration Mode and Upper Linear Flash Address Switch
UG 88 7_c1_27_090612
S DA05H1 S BD
S W11
R401
220
Ω
0.1 W
1%
R402
220
Ω
0.1 W
1%
VCC2V5
FPGA_M2
FPGA_M1
FPGA_M0
FLA S H_A25
FLA S H_A24
R 3 96
1.21k
Ω
0.1 W
1%
R 3 97
1.21k
Ω
0.1 W
1%
R 3 9 8
1.21k
Ω
0.1 W
1%
R 3 99
1.21k
Ω
0.1 W
1%
R400
1.21k
Ω
0.1 W
1%
1
2
3
4
5
10
9
8
7
6
GND
ON