Xilinx AC701 User Manual page 54

Chapter 1: AC701 Evaluation Board Features
The AC701 Evaluation Kit provides the adapter cable shown in
the AC701 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 1-34
FPGA_PROG_B Pushbutton SW9 (Active-Low)
[Figure
Switch SW9 grounds the FPGA's PROG_B pin when pressed. This action initiates an FPGA
reconfiguration. The FPGA_PROG_B signal is connected to FPGA U1 pin AE16.
Figure 1-35
X-Ref Target - Figure 1-35
Configuration Mode Switch SW1
The AC701 board supports two of the five 7 series FPGA configuration modes:
•
•
Each configuration interface corresponds to one or more configuration modes and bus
widths as listed in
2, and 3 respectively as shown in
Note:
54
To ATX 4-Pin Peripheral
Power Connector
Figure 1-34: ATX Power Supply Adapter Cable
1-2, callout 27]
See UG470, 7 Series FPGAs Configuration User Guide for further details on configuring
the 7 series FPGAs.
shows SW9.
FPGA_PROG_B
Figure 1-35: FPGA_PROG_B Pushbutton SW14
Master SPI using the on-board Quad SPI flash memory
JTAG using a standard-A to micro-B USB cable for connecting the host PC to the
AC701 board configuration port (via Digilent module)
Table 1-25. The mode switches M2, M1, and M0 are on SW1 positions 1,
On the AC701 Rev A and Rev B boards, SW1 switch position 2 is disabled and is not used.
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FPGA_3V3
R42
4.7kΩ
0.1 W
5%
SW9
1
2
UG952_c1_35_100412
Figure 1-36.
Figure 1-34 for powering
To J49 on AC701 Board
UG952_c1_34_101612
4
3
GND
AC701 Evaluation Board
UG952 (v1.0) October 23, 2012