User's Manual

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L850-GL Hardware User Manual Page
18
of
51
Pin
Pin Name
I/O
Reset Value
Pin Description
Type
Reserved
23
WOWWAN#
O
PD
Wake up host
CMOS 1.8V
24
I2S_TX
O
PD
I2S Serial transmit data,
Reserved
CMOS 1.8V
25
DPR
I
PU
Body SAR Detect,active low
CMOS
3.3/1.8V
26
W_DISABLE2#
I
PU
GNSS disable,active low,
Reserved
CMOS
3.3/1.8V
27
GND
GND
Power Supply
28
I2S_WA
O
PD
I2S Word alignment/select,
Reserved
CMOS 1.8V
29
USB3.0
‐
Tx
‐
O
USB3.0 Transmit data minus,
Not support now
30
UIM_RESET
O
L
SIM reset signal
1.8V/3V
31
USB3.0
‐
Tx+
O
USB3.0 Transmit data plus,
Not support now
32
UIM_CLK
O
L
SIM clock Signal
1.8V/3V
33
GND
GND
Power Supply
34
UIM_DATA
I/O
L
SIM data input/output
1.8V/3V
35
USB3.0‐Rx‐
I
USB3.0 receive data minus,
Not support now
36
UIM_PWR
O
SIM power supply,3V/1.8V
1.8V/3V
37
USB3.0
‐
Rx+
I
USB3.0 receive data plus,
Not support now
38
NC
NC
39
GND
GND
Power Supply
40
GNSS_SCL
O
PU
I2C Serial clock,
Reserved
CMOS 1.8V
41
PETn0
O
PCIe TX Differential signals
Negative
42
GNSS_SDA
I/O
PU
I2C Serial data input/output,
Reserved
CMOS 1.8V
43
PETp0
O
PCIe TX Differential signals Positive