Page 18
Page 19
6. microSD Card Slot
SD-CS#
R11
10K
R10
10K
VCC-MMC
R9
10K
SD-CD#
SD-CS#
SD-CD#
VCC-MMC
R16
27
VCC-3.3
E6
10uF
C38
100nF
FP1
FERRITE
1
2
4
5
6
7
CD
CS
Din
+3.3V
SCK
GND
Dout
CD
GND
CN4
MMC CARD MICRO
MISO0-MMC
MISO0-PA4
SCK0-PA2
MOSI0-PA5
MISO0-PA4
VCC-3.3
C2
22pF
C1
22pF
X1
8MHz
R5
27
R4
27
AVCC
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
LM3S9B95
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
PA7
PA6
ERBIAS
VDD
PF4
PF5
PE5
PE4
LDO
VDD
GND
VDD
PB1/USB0VBUS
VDD
VDD
TXOP
PJ4
PJ5
PJ6
PJ7
GND
TXON
PB5
PB6
PB7
VDD
VDDC
PJ1
PH2
PH3
GNDA
VDDA
PD5
PD4
PE3
PE2
GND
PB4
PD2
PA2
PC6
PC7
GND
VDD
PG0
PG1
USB0DP
USB0DM
NC
PB3/I2C0SDA
PJ0
PD1
PD0
VDDC
PD6
PD7
PE7
PE6
PA1
PA0
PC4
PC5
OSC1
PJ3
PB0/USB0ID
PF2
PF0
OSC0
GND
PJ2
RXIN
MDIO
PF1
PH0
XTALNPHY
XTALPPHY
PH7
PG7
RXIP
PF3
RST
PH1
PA5
PA4
PA3
PD3
GND
PH6
PH5
PB2/I2C0SCL
PC2
PH4
USB0BIAS
PE0
PE1
PC3
PC1
PC0
VDD
GND
U1
SD-CD#
SD-CS#
OSC0
OSC1
SCK0-MCU
MISO0-PA4
MOSI0-MCU
SCK0-PA2
MOSI0-PA5
R61
9K1
E9
10uF
VCORE
VCORE
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
