6
MachXO Starter Evaluation Board
Lattice Semiconductor
User’s Guide
Expansion Header
The MachXO Starter board includes two Samtec board-to-board connector footprints (connectors not included) for
expansion purposes. All MachXO I/O pins, JTAG signals and board voltages are connected to these pads. Refer to
Table 3 for MachXO connections to the expansion headers. Programming pins can be referenced in the Program-
ming Headers sections of this guide. Power connections are listed in Table 3.
Table 3. Expansion Connector Power Connections
The connectors are Samtec part number QTH-030-01-F-D-A. Mating connectors are Samtec part number QSH-
030-01. A mechanical drawing with placement dimensions is available from Lattice.
68
PR4A
J2-49
LED D6
69
PR3D
J2-50
LED D5
70
PR3C
J2-51
LED D4
71
PR3B
J2-52
LED D3
72
PR3A
J2-53
LED D2
73
PR2B
J2-54
LED D1
76
PR2A
J2-15
GPIO
77
PT5C
J2-14
GPIO
78
PT5B
J2-13
GPIO
79
PT5A
J2-12
GPIO
80
PT4F
J2-11
GPIO
81
PT4E
J2-10
GPIO
82
PT4D
J2-9
GPIO
83
PT4C
J2-8
GPIO
85
PCLKT0_1/PT4B
J2-7
GPIO
86
PCLKT0_0/PT4A
J2-6
GPIO
87
PT3D
J2-5
GPIO
89
PT3C
J1-45
GPIO
91
PT3B
J1-46
GPIO
94
PT3A
J1-47
GPIO
95
PT2F
J1-48
GPIO
96
PT2E
J1-49
GPIO
97
PT2D
J1-50
GPIO
98
PT2C
J1-51
GPIO
99
PT2B
J1-52
GPIO
100
PT2A
J1-53
GPIO
1. By shorting R201 with a 0 ohm resistor.
Power
Supply
Expansion Connector Pin
3.3V
J2-1,J2-2,J2-3,J2-4, J2-55,J2-56,J2-57, J2-58,J2-59,J2-60
ADJ
J1-1,J1-2,J1-3,J1-4
1.2V
J1-26,J1-27,J1-28, J1-29,J1-30
GND
J1-31,J1-54,J1-55, J1-56,J1-57,J1-58, J1-59,J1-60, J2-27,
J2-28,J2-29,J2-30, J2-31,J2-32,J2-33, J2-34,J2-35,J2-36,
J1 and J2 Center
Table 2. Device I/O Connections (Continued)
Pin #
Pin Name
Expansion Connect
Function/PCB Connect
