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7. LEDs and Switches
This section describes the CrossLink-NX Evaluation Board LEDs and switches that can be used in demo and customer
designs.
7.1. DIP Switch
Eight CrossLink-NX pins are connected to the SW1 DIP switch to allow for manually actuated inputs to the FPGA. One
side of each switch is connected to GPIOs within the VCCIO2 bank and pulled up through 4.7 kΩ resistors. The other
side is grounded. The designated pins are connected as shown in
Table 7.1. Eight-Position DIP Switch Signals
Signal Name
SWITCH0
SWITCH1
SWITCH2
SWITCH3
SWITCH4
SWITCH5
SWITCH6
SWITCH7
7.2. General Purpose Push Buttons
The CrossLink-NX Evaluation Board provides three push button switches – SW2, SW3 and SW4 for demos and user
applications. Two of the buttons control pre-defined functional pins, and the third is generic. Pressing these buttons
drives a logic level "0" to the corresponding I/O pins.
Table 7.2. Push Button Switch Signals
Signal Name
GSRN
PROGRAMN
PUSHBUTTON0
PUSHBUTTON1
Information on PROGRAMN, refer to
used as a global set/reset pin when active low, but can be substituted for another function if the user desires. SW2 and
SW3 can be used as a generic input.
© 2019-2021 Lattice Semiconductor Corp. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at www.latticesemi.com/legal.
All other brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without notice.
FPGA-EB-02028-1.4
CrossLink-NX Ball
N14
M14
M16
M15
N15
N16
M17
M18
CrossLink-NX Ball
G19
E11
G14
G15
CrossLink-NX sysCONFIG Usage Guide
CrossLink-NX Evaluation Board
Table
.
CrossLink-NX Bank
Push Button Reference
Logic Level at Button Pressed
SW4
SW5
SW2
SW3
(FPGA-TN-02099). SW2 is intended to be
User Guide
2
2
2
2
2
2
2
2
0
0
0
0
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