GSM/GPRS/GNSS Module Series
MC60 Series Hardware Design
MC60_Series_Hardware_Design Confidential / Released 74 / 114
A reference design for SD card interface is shown below.
Module
SD_DATA
SD_CLK
SD_CMD
DATA2
DATA1
DATA0
CD/DATA3
CMD
VSS1
VDD
CLK
VSS2
47K
47K 47K
4.7uF
0.1nF
VDD_EXT
33R
33R
33R
1
2
3
4
5
6
7
8
9
SD card connector
Figure 43: Reference Circuit for SD Card Interface
Table 27: Pin Definition of SD Card and T-Flash (Micro SD) Card
SD_DATA
9
IO
Data signal of SD card
Pin No.
Pin Name of SD Card
Pin Name of T-Flash (Micro SD) Card
1
CD/DATA3
DATA2
2
CMD
CD/DATA3
3
VSS1
CMD
4
VDD
VDD
5
CLK
CLK
6
VSS2
VSS
7
DATA0
DATA0
8
DATA1
DATA1
9
DATA2
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