SAMA5D3x-EK User Guide
6-17
11180A–ATARM–30-Jan-13
6.2.12
SD/MMC Interface
SD/MMC is a standard Secure Digital / MultiMedia Card interface.
The Main Board (MB) has two high-speed Multimedia Card Interfaces (MCI).
The first interface is used as a 8-bit interface (MCI0), connected to a SD/MMC card slot.
The second interface is used as a 4-bit interface (MCI1), connected to a MicroSD card slot.
Each power line is on by default and is connected to a MOSFET controlled by a PIO to switch On or Off
the SD card power.
Note:
Please note that the power is connected to VCC, which is 3.3V.
Figure 6-17. SD/MMC Interface
VDDIOP1
VDD_MCI1
VDD_MCI0
VDD_MCI0
VDDIOP1
VDD_MCI0
VDD_MCI1
VDDIOP1
VDDIOP1
PD2
PB21
3
PB20
3
PB24
3
PB19
3
PB23
3
PB22
3
PD1
PD9
PD0
PD4
PD3
PD18
3
PD6
PD7
PD8
PD5
PD17
PB10
3
PB12
3
MCI1
RR1,RR2 near SODIMM place
(MCI1_DA1)
(MCI1_DA0)
(MCI1_CK)
(MCI1_CDA)
(MCI1_DA3)
(MCI1_DA2)
(MCI1_CD)
MCI0
Micro SD
(MCI0_CD)
(MCI0_W P)
SD/MMCPlus CARD INTERFACE - MCI0
RR4,RR5,RR42 near SODIMM place
(MCI0_DA1)
(MCI0_DA0)
(MCI0_CK)
(MCI0_CDA)
(MCI0_DA3)
(MCI0_DA2)
(MCI0_DA4)
(MCI0_DA5)
(MCI0_DA7)
(MCI0_DA6)
R10
68k
R10
68k
R47
4.7k
R47
4.7k
RR4
27R
RR4
27R
1
2
3
4
5
6
7
8
R9
10k
R9
10k
Q9
IRLML6402
Q9
IRLML6402
1
3
2
R121
0R
DNP
R121
0R
DNP
R49
10k
R49
10k
R17
68k
R17
68k
SW1
SW2
J6
PJS008-2110-0
SW1
SW2
J6
PJS008-2110-0
8
5
7
6
4
3
2
1
9
13
12
11
10
14
R39
68k
R39
68k
R13
68k
R13
68k
C93
10u
C93
10u
R11
68k
R11
68k
R58
0R
DNP
R58
0R
DNP
R38
68k
R38
68k
R18
68k
R18
68k
RR2
27R
RR2
27R
1
2
3
4
5
6
7
8
J7
7SDMM-B0-2211
J7
7SDMM-B0-2211
8
5
7
6
4
3
2
1
9
14
15
16
13
12
11
10
R14
10k
R14
10k
JP6
SIP2
JP6
SIP2
1
2
R36
68k
R36
68k
C40
10u
C40
10u
C12
100n
C12
100n
Q8
IRLML6402
Q8
IRLML6402
1
3
2
R26
68k
R26
68k
C11
100n
C11
100n
RR3
10k
RR3
10k
1
2
3
4
5
6
7
8
R15
68k
R15
68k
R48
4.7k
R48
4.7k
RR42
27R
RR42
27R
1
2
3
4
5
6
7
8
R16
68k
R16
68k
RR5
27R
RR5
27R
1
2
3
4
5
6
7
8
RR1
27R
RR1
27R
1
2
3
4
5
6
7
8
R12
68k
R12
68k
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