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L850-GL Hardware User Manual Page 18 of 54
Pin Pin Name
I/O Reset Value
Pin Description
Type
22
I2S_RX
I
PD
I2S Serial receive data,
Reserved
CMOS 1.8V
23
WOWWAN#
O
PD
Wake up host, Reserved
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
30
UIM_RESET
O
L
SIM reset signal
1.8V/3V
31
USB3.0_TX+
O
USB3.0 Transmit data plus
32
UIM_CLK
O
L
SIM clock Signal
1.8V/3V
33
GND
GND
电源
34
UIM_DATA
I/O
L
SIM data input/output
1.8V/3V
35
USB3.0_RX-
I
USB3.0 receive data minus
36
UIM_PWR
O
SIM power supply, 3V/1.8V
1.8V/3V
37
USB3.0_RX+
I
USB3.0 receive data plus
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
44
GNSS_IRQ
I
PD
GNSS Interrupt Request,
Reserved
CMOS 1.8V
45
GND
GND
Power Supply