Sd Card Interface (J1301) - Quectel RG50-Q Series User Manual

Table 8: Pin Definition of J1401
Pin No. Pin Name
C1 USIM_VDD
C2 USIM_RST
C3 USIM_CLK
C4 RESERVED
C5 GND
C6 VPP
C7 USIM_DATA
C8 RESERVED
CD USIM_PRESENCE

3.7. SD Card Interface (J1301)

The 5G EVB provides an SDIO interface, which can be used for connecting SD card. The following figure
shows the simplified interface schematic for J1301.
J0101
Module
If SD card function is intended to be used, please switch the SDIO Switch to low level illustrated in the
figure and table below, a standard SD card can be inserted into J1301. Which supports micro SD card
5G_EVB_User_Guide
I/O
PO
DO
DO
-
-
-
I/O
-
DI
SDIO_COM
Multiplexer/
Demultiplexer
SDIO Switch
Figure 19: Simplified Interface Schematic for J1301
Function
U(SIM) card power supply, provided by module
U(SIM) card reset
U(SIM) card clock
Not connected
Ground
Not connected
Data line, bi-directional
Not connected
U(SIM) card insertion detection.
U2502
6-Bit
SDIO_NC
5G/LTE-A Module Series
5G EVB User Guide
J1301
SD Card
Connector
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