LTE Module Series
LTE OPEN EVB User Guide
LTE_OPEN_EVB_User_Guide 33 / 62
If (U)SIM hot-plug function is intended to be used, then please short the signal illustrated in the figure and
table below.
Figure 24: (U)SIM Hot-Plug GPIO Configuration
Table 11: (U)SIM Hot-Plug GPIO Configuration
4.7. SD Card Interfaces & eMMC (J0701/J0702 & U0702)
LTE OPEN EVB provides two SD card interfaces (J0701 and J0702), which can be used for micro SD
cards and standard SD cards respectively. These two interfaces support maximally 32GB and cannot be
used simultaneously. With the SD card interface, customers can easily enhance the memory capacity of
modules.
C6
VPP
/
Not connected
C7
USIM_DATA
IO
Data line, bidirectional
CD1
GND
/
U(SIM) card insertion detection
CD2
USIM_PRESENCE
DI
U(SIM) card insertion detection.
Support low level detection.
Pin No.
Pin Name
Operation
Pin No.
Pin Name
Pin 3 (J0202)
USIM1_PRESENCE
Shorted to
Pin 4 (J0202)
GPIO_34
