Sd Card Interface - Quectel SA800U-WF EVB User Manual

4.14. SD Card Interface

The following figure shows the simplified interface schematic for SD card interface on SA800U-WF EVB.
Table 18: SD Card Interface
RefDes.
U1202
U1202
1
P1-DAT2
2
P2-CD/DAT3
3
P3-CMD
4
P4-VDD
5
P5-CLK
6
P6-VSS
7
P7-DAT0
8
P8-DAT1
9
DETECTIVE
10
GND
11
GND
12
GND
13
GND
SD Card Connector
SA800U-WF_EVB_User_Guide
Description
SD card connector
LDO13_2V95
LDO21_2V95
D1
D2 D3
Figure 48: Reference Design for SD Card Interface
10 9
8 6 7 5 3 2
U1202
12
Figure 49: Pin Assignment of SD Card Interface
VREG_S4A_1V8
D7
D4 D6 D8
D5
11
4 1
13
Smart Module Series
R6
10 K
R7
33 R
SD_DATA2
33 R
R8
SD_DATA3
33 R
R9
SD_CMD
R10
33 R
SD_CLK
R11 33 R
SD_DATA0
33 R
R12
SD_DATA1
R13 1 K
SD_DET
Module
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