ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 805

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 37-4. MMC Bus Connections (One Slot)
Note:
6430D–ATARM–25-Mar-11
When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK, MCCDA to HSMCIx_CDA MCDAy
to HSMCIx_DAy.
HSMCI
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 37-4.
Notes:
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
MCCDA
MCCK
MCDA0
2. When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK,
1. I: Input, O: Output, PP: Push/Pull, OD: Open Drain.
MCCDA to HSMCIx_CDA, MCDAy to HSMCIx_DAy.
Bus Topology
Name
DAT[3]
CMD
VSS1
VDD
CLK
VSS2
DAT[0]
DAT[1]
DAT[2]
DAT[4]
DAT[5]
DAT[6]
DAT[7]
1
9 1011
2 3 4 5 6
MMC1
1213 8
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)
1
9 1011
2 3 4 5 6
MMC2
1213 8
Data 4
Data 5
Data 6
Data 7
Description
Data
Command/response
Supply voltage ground
Supply voltage
Clock
Supply voltage ground
Data 0
Data 1
Data 2
7
1
9 1011
2 3 4 5 6
MMC3
1213 8
SAM3U Series
7
MCDz3
MCCDz
VSS
VDD
VSS
MCDz0
MCDz1
MCDz2
MCDz4
MCDz5
MCDz6
MCDz7
HSMCI Pin Name
(Slot z)
MCCK
805
((2)