SAM3SD8B Atmel Corporation, SAM3SD8B Datasheet - Page 827
SAM3SD8B
Manufacturer Part Number
SAM3SD8B
Description
Manufacturer
Atmel Corporation
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11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
The High Speed MultiMedia Card communication is based on a 13-pin serial bus interface. It has
three communication lines and four supply lines.
Table 34-4.
Notes:
Figure 34-4. MMC Bus Connections (One Slot)
Note:
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
2. When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK,
When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK,
MCCDA to HSMCIx_CDA MCDAy to HSMCIx_DAy.
1. I: Input, O: Output, PP: Push/Pull, OD: Open Drain.
MCCDA to HSMCIx_CDA, MCDAy to HSMCIx_DAy.
HSMCI
Bus Topology
MCCDA
MCCK
MCDA0
Name
DAT[3]
CMD
VSS1
VDD
CLK
VSS2
DAT[0]
DAT[1]
DAT[2]
DAT[4]
DAT[5]
DAT[6]
DAT[7]
Type
I/O/PP
I/O/PP/OD
S
S
I/O
S
I/O/PP
I/O/PP
I/O/PP
I/O/PP
I/O/PP
I/O/PP
I/O/PP
1
9 1011
(1)
2 3 4 5 6
MMC1
1213 8
7
Description
Data
Command/response
Supply voltage ground
Supply voltage
Clock
Supply voltage ground
Data 0
Data 1
Data 2
Data 4
Data 5
Data 6
Data 7
1
9 1011
2 3 4 5 6
MMC2
1213 8
7
SAM3S8/SD8
SAM3S8/SD8
1
9 1011
HSMCI Pin Name
(Slot z)
MCDz3
MCCDz
VSS
VDD
MCCK
VSS
MCDz0
MCDz1
MCDz2
MCDz4
MCDz5
MCDz6
MCDz7
2 3 4 5 6
MMC3
1213 8
7
(2)
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