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CLM920 TD3 LTE Module Hardware Usage Guide
Debug serial port
11
DBG_RXD
12
DBG_TXD
USIM interface
Pin
Pin definition
13
USIM_DET
14
USIM_VDD
15
USIM_DATA
16
USIM_CLK
17
USIM_RST
GPIO pin
Pin
Pin definition
1
WAKEUP_IN
2
AP_READY
3
GPIO_1
4
W_DISABLE# DI
5
GPIO_2
Module status indication interface
Pin
Pin definition
6
NET_STATUS OD
Shanghai Yuge Information Technology co., LTD
DI
Serial data reception
DO
Serial data transmission
IO
Functional description
DI
USIM card detection
USIM
card
PO
supply
IO
USIM card data
DO
USIM card clock
DO
USIM card reset
IO
Functional description
DI
Sleep mode control
DI
Sleep state detection
This pin function has
IO
not been defined
Flight mode control
This pin function has
PI
not been defined
IO
Functional description
Module work network status
when not in use
please keep it floating
when not in use
please keep it floating
when not in use
Remarks
please keep it floating when not in
use
power
Module automatically recognizes
1.8V or 3V USIM card
Remarks
During development (keep
empty when not in use)
RESERVE, please keep it
floating
During development (keep
empty when not in use)
RESERVE, please keep it
floating
Remarks
please keep it floating
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