Part 3.13: Buttons - Alinx AX7A200 Manual

ARTIX-7 FPGA Development Board AX7A200 User Manual
Be careful not to hot plug the JTAG cable
Figure 3-12-2: JTAG Interface on the Carrier Board

Part 3.13: Buttons

The AX7A200 FPGA carrier board contains five user buttons RESET,
KEY1~KEY4, and all the buttons are connected to the normal IO of the FPGA.
The button is active low. When the button is pressed, the IO input voltage of the
FPGA is low. When no button is pressed, The IO input voltage of the FPGA is
high. The circuit of the button part is shown in Figure 3-13-1.
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Figure 3-12-1: JTAG Interface Schematic
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