Hardware Guide

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FIBOCOM MC610 Series Hardware Guide 24/71
Pin
Pin Name
I/O
Voltage
Domain
Reset
Value
Description
109
GND
G
-
-
Ground
110
GPIO
I/O
1.8V
L
GPIO12
Support function JTAG_TDO/SD2_D3
111
ADC3
I
-
-
Analog-to-digital converter interface 3
1k in series when in use
112
GND
G
-
-
Ground
113
VBUS
I
5V
-
USB insertion detection
Keep it floating if not used.
114
U2RXD
I
1.8V
-
Data receiving of module serial port 2
Multiplexing function GPIO/U2RXD
115
U2TXD
O
1.8V
-
Data transmission of module serial port 2
Multiplexing function GPIO/U2TXD
116
GND
G
-
-
Ground
117
GPIO
I/O
1.8V/3.0V
L
GPIO24
Support function SD1_CMD/GPIO24/SCL3
118
SDC_CLK/SPI2CS_0
O
1.8V/3.0V
-
SDC_CLK/SPI2CS_0
Keep it floating if not used.
119
GPIO
I/O
1.8V
L
GPIO12
Support function GPIO/SPI1DI_1/GPO
120
GPIO
I/O
1.8V
L
GPIO4
Support function GPIO/FLS1SIO2
121
GND
G
-
-
Ground
122
WIFI ANT
I/O
-
-
WIFI-SCAN/BT antenna
123
RESET_N
I
-
-
Module reset signal, low level valid
124
GPIO
I/O
1.8V
L
GPIO5
Support function