AT91SAM9G10-EK Atmel, AT91SAM9G10-EK Datasheet - Page 552

• Manufacturer Part Number: AT91SAM9G10-EK
• Description: KIT DEV FOR SAM9G10 ARM
• Manufacturer: Atmel
• Type: MCUr

Specifications of AT91SAM9G10-EK

• Contents: Board, Cables, Power Supply
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Kit Contents: Board
• Svhc: No SVHC (15-Dec-2010)
• Mcu Supported Families: AT91SAM9G10, ARM926EJ-S
• Tool / Board Applications: Microcontroller
• Rohs Compliant: Yes
• For Use With/related Products: *
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

35.5
35.5.1
35.5.2
35.5.3
35.6
Figure 35-3. Multimedia Memory Card Bus Topology
6462A–ATARM–03-Jun-09
Product Dependencies
Bus Topology
I/O Lines
Power Management
Interrupt
The pins used for interfacing the MultiMedia Cards or SD Cards may be multiplexed with PIO
lines. The programmer must first program the PIO controllers to assign the peripheral functions
to MCI pins.
Table 35-2.
The MCI may be clocked through the Power Management Controller (PMC), so the programmer
must first configure the PMC to enable the MCI clock.
The MCI interface has an interrupt line connected to the Advanced Interrupt Controller (AIC).
Handling the MCI interrupt requires programming the AIC before configuring the MCI.
Table 35-3.
The MultiMedia Card communication is based on a 7-pin serial bus interface. It has three com-
munication lines and four supply lines.
Table 35-4.
Pin
Number
1
2
3
4
Instance
Instance
MCI
MCI
MCI
MCI
MCI
MCI
MCI
I/O Lines
Peripheral IDs
Bus Topology
Name
RSV
CMD
VSS1
VDD
ID
9
1
9 1011
2 3 4 5 6
Type
NC
I/O/PP/OD
S
S
1213 8
(1)
MCCDA
MCDA0
MCDA1
MCDA2
MCDA3
Signal
MCCK
7
Description
Not connected
Command/response
Supply voltage ground
Supply voltage
I/O Line
AT91SAM9G10
PA1
PA2
PA0
PA4
PA5
PA6
MCCDz
MCI Pin Name
(Slot z)
-
VSS
VDD
Peripheral
(2)
B
B
B
B
B
B
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