Sd Card Interfaces & Emmc (J0701/J0702 & U0702) - Quectel LTE OPEN EVB User Manual

C6 VPP
C7 USIM_DATA
CD1 GND
CD2 USIM_PRESENCE
If (U)SIM hot-plug function is intended to be used, then please short the signal illustrated in the figure and
table below.
Table 11: (U)SIM Hot-Plug GPIO Configuration
Pin No. Pin Name
Pin 3 (J0202) USIM1_PRESENCE
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.
LTE_OPEN_EVB_User_Guide
/
IO
/
DI
Figure 24: (U)SIM Hot-Plug GPIO Configuration
Operation
Shorted to
LTE Module Series
LTE OPEN EVB User Guide
Not connected
Data line, bidirectional
U(SIM) card insertion detection
U(SIM) card insertion detection.
Support low level detection.
Pin No.
Pin 4 (J0202)
Pin Name
GPIO_34
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