General Purpose Push Buttons; General Purpose Leds; Table 13.2. Push Button Switch Signals; Table 13.3. Led Signals - Lattice Semiconductor MachXO5T-NX-Development Board User Manual

13.2. General Purpose Push Buttons

The MachXO5T-NX Development Board provides four push button switches, SW2, SW3, SW4 and SW5, for demos and
user applications. Pressing these buttons drives a logic level 0 to the corresponding I/O pins.

Table 13.2. Push Button Switch Signals

Push Button Number Reference name
PB1
PB2
PB3
PB4
SW2 is designed for general-purpose applications. At the same time, SW2 can be used to trigger PCIE reset by adding
JP10 jumper. SW3 can be used to trigger the reset sequency of SGMII PHY devices after adding JP3 and JP5 jumpers.
SW4 can be used as ASC global reset push button when JP4 is set to connect with EXPCON_IO20, which is connected to
MANDATORY_RESET signal when mated with Lattice ASC Bridge Board. Refer to
User Guide (FPGA-EB-02025)
button to trigger the configuration process without power cycle. For detailed information on PROGRAMN, refer to
MachXO5 Programming and Configuration User Guide

13.3. General Purpose LEDs

The MachXO5T-NX Development Board provides eight red LEDs that are connected to general purpose I/O. The LEDs
are lighted when the output is driven LOW.

Table 13.3. LED Signals

Red LEDs Ref Name
D1
D2
D3
D4
D5
D6
D7
D8
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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-02058-1.0
LFMXO5-100T Ball Location
SW2
SW3
SW4
SW5
for detailed information with ASC application. SW5 can be used as PROGRAMN push
(FPGA-TN-02271).
Table 13.3 lists the red LEDs and their associated pins.
Net Name
Shared function
K6 PCIE Reset
— PHY devices Reset
D19 ASC Reset
G10 PROGRAMN
ASC Bridge Board Evaluation Board
XLED0
XLED1
XLED2
XLED3
XLED4
XLED5
XLED6
XLED7
MachXO5T-NX-Development Board
Evaluation Board User Guide
Check Conditions
JP10
JP3, JP5
JP4
—
LFMXO5-100T Ball Location
G11
G15
G12
H12
L14
L15
M20
M19
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