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Pin Name
VBAT_M
VBAT_THERM
VBAT_ID
Button
KEY_FORCE_BOOT
KEY_VOL_UP
KEY_VOL_DOWN
KEY_PWR_ON
RESIN_N
CBL_PWR_N
(U)SIM card interface
UIM2_DET
UIM2_RST
UIM2_CLK
UIM2_DATA
Pin No.
I/O
234
AI
127
AI
2
AI
1
DI
91
DI
92
DI
123
DI
166
DI
165
DI
17
DI
18
DO
19
DO
20
DI/DO
Copyright © Fibocom Wireless Inc.
Pin Description
Battery negative detection
Battery temperature
detection
Battery ID pin
Force download key
Volume +
Volume -
Power key
Reset key
Auto power-on pin
UIM2 hot plugging detection
UIM2 reset signal
UIM2 clock signal
UIM2 data signal
Remarks
Connected to the
negative pole of the
battery. When battery is
unused, connected to
GND.
Connect the pin to GND
with 47 KΩ resistor if the
pin is unused
Connect the pin to GND
with 100 KΩ resistor if
the pin is unused
Active high
Active low
Active low
Active low
Active low
Active low
Active high by
default
--
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19
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