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L850-GL Hardware User Manual Page 20 of 54
Pin Pin Name I/O Reset Value Pin Description Type
coexistence protocol. COEX_EXT_FTA,
Reserved
61
ANTCTL1
O
-
Tunable ANT CTRL1
CMOS 1.8V
62
COEX_RXD
I
T
Wireless Coexistence between WWAN
and WiFi/BT modules, based on BT-SIG
coexistence protocol. UART receive
signal(WWAN module side), Reserved
CMOS 1.8V
63
ANTCTL2
O
-
Tunable ANT CTRL2
CMOS 1.8V
64
COEX_TXD
O
T
Wireless Coexistence between WWAN
and WiFi/BT modules, based on BT-SIG
coexistence protocol. UART transmit
signal(WWAN module side), Reserved
CMOS 1.8V
65 NC
NC
66 SIM_DETECT I PD
SIM Detect, internal pull up(390KΩ),
active high
CMOS 1.8V
67 RESET# I
WWAN reset input, internal pull
up(10KΩ), active low
CMOS 1.8V
68 NC
NC
69 CONFIG_1 O
GND
GND, L850 M.2 module is configured as
the WWAN – PCIe, USB3.0 interface
type
70 +3.3V PI
Power input Power Supply
71 GND
GND Power Supply
72 +3.3V PI
Power input Power Supply
73 GND
GND Power Supply
74 +3.3V PI
Power input Power Supply
75 CONFIG_2 O
GND
GND, L850 M.2 module is configured as
the WWAN – PCIe, USB3.0 interface
type
Reset Value: The initial status after module reset, not the status when working.
H: High Voltage Level
L: Low Voltage Level
PD: Pull-Down