Arduino Board Gpio Headers; Table 12.3. Arduino J2 Pin Connections; Table 12.4. Arduino J3 Pin Connections; Table 12.5. Arduino J4 Pin Connections - Lattice Semiconductor MachXO5T-NX-Development Board User Manual

MachXO5T-NX-Development Board
Evaluation Board User Guide

12.2. Arduino Board GPIO Headers

The board provides four headers, J2, J3, J4, and J5, for Arduino Zero board adaption.

Table 12.3. Arduino J2 Pin Connections

J2 Pin
Net Name
Number
1 AR_IO8
2 AR_IO9
3 AR_SS_IO10
4 AR_MOSI_IO11
5 AR_MISO_IO12
6 AR_SCK_IO13
7 GND
8 AR_AREF
9 AR_SDA
10 AR_SCL

Table 12.4. Arduino J3 Pin Connections

J3 Pin Number Net Name
1 AR_IO0
2 AR_IO1
3 AR_IO2
4 AR_IO3
5 AR_IO4
6 AR_IO5
7 AR_IO6
8 AR_IO7

Table 12.5. Arduino J4 Pin Connections

J4 Pin Number Net Name
1 AR_IO14
2 NC
3 AR_RESET
4 +3.3V_AR
5 AR_5V
6 GND
7 GND
8 +12V
Note:
If JP6 is installed, 5 V power can be supplied from either the Arduino board or the MachXO5T-NX Development Board. With JP6
removed, both boards need their own 5 V power.
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Arduino ZERO Board LFMXO5-100T Ball
Signal
~D8/PA06
~D9/PA07
~D10/PA18/SS
~D11/PA16/COPI
~D12/PA19/CIPO
~D13/PA17/SCK
GND
AREF/PA03
D20/PA22/SDA
D21/PA23/SCL
Arduino ZERO Board Signal
D0/RX/PA11
D1//TX/PA10
D2/PA14
~D3/PA09
~D4/PA08
~D5/PA15
~D6/PA20
D7/PA21
Arduino ZERO LFMXO5-100T Ball
Board Signal
ATN
IOREF
RESET
+3V3
+5V
GND
GND
VIN
Comments
Location
K3 —
K2 —
K1 Defaults to SS function on Arduino ZERO Board.
Defaults to COPI function on Arduino ZERO
L3
Board.
Defaults to CIPO function on Arduino ZERO
L1
Board.
Defaults to SCK function on Arduino ZERO
L2
Board.
— —
L6 AR_AREF connection to AREF through R43.
Defaults to SDA function on Arduino ZERO
N5 Board. It is optionally connected to SDA0
through R44 (DNI).
Defaults to SCL function on Arduino ZERO Board.
N6 It is optionally connected to SCL0 through R45
(DNI).
LFMXO5-100T Ball Location
K4
K5
J6
K7
J7
J8
H9
K8
Comments
Location
L7 —
— —
Pin K2 should be set high by default. Avoid
K2 Arduino ZERO board in Reset status when
connected.
— 3.3 V power supply from Arduino ZERO board.
— Jump to 5 V onboard power rail through JP6.
— —
— —
— Share with +12 V onboard power rail.
Comments
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FPGA-EB-02058-1.0