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6. microSD Card Slot
VCC-3.3
R5
27
R4
27
VREF-1.8
C31
22pF
C30
22pF
X3
32.768KHz
C2
22pF
C1
22pF
X1
8MHz
E9
10uF
MOSI2-RG8
SCK2-RG6
SOSCO
SOSCI
CLKO
CLKI
SD
-C
D
#
SD-CS#
MISO2-RG7
30
29
28
27
34
33
58
57
56
55
54
53
52
46
36
35
42 43 44 45
37
50
9
48 49
11
12
32
72
69
68
67
66
65
64
63
4
3
78 77
24
23
18
17
16
15
14
13
5
6
7
8
10
79
80
1
2
22
21
20
19
62
61
60
59
38 39 40 41
47
71
31
51
70
26
25
76
75
74
73
dsPIC33FJ256GP710A
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10
0
R
B1
1
R
B10
/A
N
10
R
B9
/A
N
9
R
B8
/A
N
8
R
B1
3
R
B1
2
RE7
RC1
RC2
RC3
RA15
SCL1/RG2
R
B1
5
R
B1
4
SDO1/RF8
SDI1/RF7
SCK1/RF6
SDA1/RG3
G
N
D
VC
C
R
A6
R
G
0
R
G
1
R
E0
R
F1
R
F0
R
D
7
R
D
6
RE6
RE5
R
E2
R
G
13
R
G
12
R
G
14
R
E1
R
A7
RG8/SDO2
R
A9
/V
re
f-
RB1
RB2/AN2
RB3
RB4
RB5
RA13
RD9
RD8
U1RX/RF2
U1TX/RF3
GND
RG7/SDI2
RG6/SCK2
R
A1
R
E3
R
E4
RG15
VCC
R
B7
/P
G
ED
1
R
B6
/P
G
EC1
RB0
R
F4
R
F5
RA14
RA5
R
D
14
R
D
15
RA2
R
F1
3
VC
C
RA3
VCC
VC
C
RA12
RA0
VCC
G
N
D
R
F1
2
RA4
GND
VCA
P
AG
N
D
AV
CC
R
A1
0/
Vr
ef
+
MCLR
RC4
CLKI/RC12
CLKO/RC15
RD10
R
D
3
R
D
1
SOSCI/RC13
SOSCO/RC14
GND
R
D
2
R
D
12
R
D
13
R
D
4
R
D
5
RG9
RD11
RD0
U1
SD-CS#
R11
10K
R10
10K
VCC-MMC
R9
10K
SD-CD#
VCC-MMC
R16
27
VCC-3.3
E6
10uF
C38
100nF
FP1
FERRITE
1
2
4
5
6
7
CD
MOSI2-RG8
SCK2-RG6
MISO2-RG7
VCC-MMC
CS
Din
+3.3V
SCK
GND
Dout
CD
G
CS
Din
+3.3V
SCK
GND
Dout
CD
G
N
D
CN4
C5
100nF
C6
100nF
C7
100nF
E8
10uF
VCC-3.3 VCC-3.3 VCC-3.3
VCC-3.3
C8
100nF
VCC-3.3
decoupling capacitors
Board contains
microSD card slot
for using microSD cards
in your projects. It enables you to store large amounts of data
externally, thus saving microcontroller memory. microSD cards
use Serial Peripheral Interface (
SPI
) for communication with the
microcontroller.
Figure 6-3:
Inserting microSD card
Figure 6-1:
microSD card slot
Figure 6-2:
microSD Card Slot module connection schematics
