Quectel LTE OPEN EVB User Manual

LTE Module Series
LTE OPEN EVB User Guide
LTE_OPEN_EVB_User_Guide 36 / 62
Table 13: Pin Definition of J0702
1)
Direction: from connector to SD card.
Table 14: S0701 Function
If SD card function is intended to be used, then please switch S0701 to the left and short the signal
illustrated in the figure and table below. After that, a standard SD card can be inserted into J0702 or a
micro SD card into J0701.
Pin No.
Signal Name
I/O
1)
Function
1
CD/DAT3
IO
Card detect/SDIO data line 3
2
CMD
IO
SDIO command line
3
VSS
/
Power supply GND
4
VDD
P
Supply voltage
5
CLK
IO
SDIO clock
6
VSS2
/
Power supply GND
7
DAT0
IO
SDIO data line 0
8
DAT1
IO
SDIO data line 1
9
DAT2
IO
SDIO data line 2
DET
DI
SD card detect
Switched Direction
Description
Left
Enable SD card function
Right
Enable eMMC function
NOTE

Quectel LTE OPEN EVB Specifications

General

Brand	Quectel
Model	LTE OPEN EVB
Category	Control Unit
Language	English