Table 2.1. Onboard Major Power Rails; Table 2.2. Lfmxo5-100T Io Bank Power Rails Stuff; Table 2.3. Lfmxo5-100T Major Power Rails Stuff - Lattice Semiconductor MachXO5T-NX-Development Board User Manual

Table 2.1. Onboard Major Power Rails

Power Net Name
+12V
PS_5V
VBUS_5V
+5.0V
+3.3V
+2.5V
+1.8V
+1.2V
+1.1V
+1.0V
+3.3V_RASP
+3.3V_AR
As shown in Figure 2.1, this board provides multiple power options for I/O bank voltage flexibility.
summarizes the V support matrix on this board. For an example, V
CCIO
jumper J24 and short its Pin 1 and Pin 2 can bring the 3.3 V LDO output to both I/O bank 1 and bank 2. For power
consumption evaluation, this board facilitate some two-position jumpers with 1 Ω sense resistors to measure the
voltage drop on each power rail, then the supply current can be calculated.

Table 2.2. LFMXO5-100T IO Bank Power Rails Stuff

LFMXO5-100T
Jumpers
Power (U3)
V —
CCIO0
V J24
CCIO1
V J24
CCIO2
V —
CCIO3
V J23
CCIO4
V J20
CCIO5
V J21
CCIO6
V J22
CCIO7
Other than power rail for each I/O Bank, this board also provides some test points to evaluate the major power
consumptions for LFMXO5-100T device as listed in

Table 2.3. LFMXO5-100T Major Power Rails Stuff

LFMXO5-100T Power (U3)
V
CC_CORE
V /V /V
CC_AUX CC_AUXH
V
CC_ADC
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FPGA-EB-02058-1.0
Primary Source
DC Power Jack (J17) or PCIE Edge Connecter (CN1)
DC/DC Regulator (U11)
Mini-USB Headers (J11 or J19)
Selected by Slide switch (SW6)
DC/DC Regulator (U12)
Raspberry Pi Header (J6)
Arduino Header (J4)
3.3 V 2.5 V
Fixed —
Pin 1-2 Pin 2-3
Pin 1-2 Pin 2-3
— —
— — Pin 1-2
— — Pin 1-2
Pin 1-2 —
Pin 1-2 —
Table
Power Test Point
JP18
JP14
CCAUXA
JP17
LDO (U8)
LDO (U13)
LDO (U15)
LDO (U16)
LDO (U17)
and V
CCIO1 CCIO2
1.8 V 1.2 V 1.1 V
— — —
— — —
— — —
— — Fixed
Pin 2-3 —
Pin 2-3 —
— — —
— — —
2.3.
Voltage Drop Resistor
R112
R131
R137
MachXO5T-NX-Development Board
Evaluation Board User Guide
Test Point
TP20
—
JP15
TP14
TP15
TP16
TP17
TP18
TP19
TP21
—
—
Table 2.2
share the same three positions
Power Sense
Ext 3.3 V Test Resistor
Point of 1 Ω
— JP19
— JP16
— JP20
— JP21
— JP22
— JP23
Pin 2-3 JP24
Pin 2-3 JP25
Resistance
0.01 Ω
1 Ω
1 Ω
R132
R133
R134
R61
R62
R63
R64
R153
11