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7.2. General Purpose Push Buttons
The MachXO3-9400 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 7.2. Push Button Switch Signals
Signal Name
PB1
PB2
PB3
PB4
SW2, SW3 and SW4 are designed for general purpose applications and SW5 is designed with additional jumper JP5 as
shown in
Figure
7.3. SW5 can be used as PROGRMN push button when JP5 is set to trigger the configuration process
without power cycle. For detailed information on PROGRAMN, refer to TN1279,
Configuration Usage
Guide.
7.3. General Purpose LEDs
The MachXO3-9400 Development Board provides eight red LEDs that are connected to IOs within Bank 5. The LEDs are
lighted when the output is driven LOW.
Table 7.3. LED Signals
Red LEDs
D1
D2
D3
D4
D5
D6
D7
D8
Caution:
The MachXO3-9400 Development Board contains ESD-sensitive components. ESD safe
practices should be followed while handling and using the development board.
© 2017 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-02004-1.0
MachXO3 Ball Location
D3
D4
F6
G7
VCCIO5
R150
4.7K
SW5
PB4
PB4
C100
0.1uF
Figure 7.3. Push Button SW5 Circuit Design
Table 7.3
lists the red LEDs and their associated pins.
Signal Name
XLED0
XLED1
XLED2
XLED3
XLED4
XLED5
XLED6
XLED7
MachXO3-9400 Development Board
Push Button Reference
SW2
SW3
SW4
SW5
MachXO3 Programming and
JP5
2
1
PROGRAMN
[4]
JUMPER
MachXO3 Ball Location
D1
E2
E3
F4
E1
F1
G3
G4
Evaluation Board User Guide
Logic Level at Button Pressed
0
0
0
0
Logic Level to Light
0
0
0
0
0
0
0
0
27
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