Table 30: GPIO Connections to FPGA U1
FPGA (U1) Pin
Schematic Net
Name
FPGA (U1)
Direction
I/O Standard
Device
GPIO LEDs (Active-High) GPIO_LED signals are wired to LED driver U56
BANK 67
BH24
GPIO_LED_0
Output
LVCMOS18
DS2
BANK 67
BG24
GPIO_LED_1
Output
LVCMOS18
DS3
BANK 67
BG25
GPIO_LED_2
Output
LVCMOS18
DS4
BANK 67
BF25
GPIO_LED_3
Output
LVCMOS18
DS5
BANK 67
BF26
GPIO_LED_4
Output
LVCMOS18
DS6
BANK 67
BF27
GPIO_LED_5
Output
LVCMOS18
DS7
BANK 67
BG27
GPIO_LED_6
Output
LVCMOS18
DS8
BANK 67
BG28
GPIO_LED_7
Output
LVCMOS18
DS9
CPU reset pushbutton (active-high)
BANK 64
BM29
CPU_RESET
Input
LVCMOS12
SW4.3
GPIO SMA pair (applied voltage should not exceed 1.8V)
BANK 67
BH27
SMA_CLK_OUTPUT_P
I/O
LVCMOS18
J12.1
BANK 67
BJ27
SMA_CLK_OUTPUT_N
I/O
LVCMOS18
J13.1
Switches
, callouts 30, 33]
The VCU118 evaluation board includes a power on/off slide switch and a configuration
pushbutton switch.
• FPGA Program_B SW4, active-Low (callout 30)
• Power on/off slide switch SW5 (callout 33)
Power On/Off Slide Switch SW5
, callout 33]
The VCU118 board power switch is SW5. Sliding the switch actuator from the off to the on
position applies 12VDC power from the 6-pin mini-fit power input connector J16, normally used
in bench-top applications with the provided power adapter. The green LED DS20 illuminates
when the VCU128 board power switch is on. See
for details on the onboard
power system. The following figure shows the power connector J16, power switch SW5, and
indicator LED DS20.
Chapter 3: Board Component Descriptions
UG1302 (v1.1) April 21, 2021
VCU128 Board User Guide
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