ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 804

• 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

37.5
37.5.1
37.5.2
37.5.3
37.6
Figure 37-3. High Speed MultiMedia Memory Card Bus Topology
804
Product Dependencies
Bus Topology
SAM3U Series
I/O Lines
Power Management
Interrupt
The pins used for interfacing the High Speed MultiMedia Cards or SD Cards are multiplexed with
PIO lines. The programmer must first program the PIO controllers to assign the peripheral func-
tions to HSMCI pins.
Table 37-2.
The HSMCI is clocked through the Power Management Controller (PMC), so the programmer
must first configure the PMC to enable the HSMCI clock.
The HSMCI interface has an interrupt line connected to the Nested Vector Interrupt Controller
(NVIC).
Handling the HSMCI interrupt requires programming the NVIC before configuring the HSMCI.
Table 37-3.
Instance
Instance
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
I/O Lines
Peripheral IDs
17
ID
1
9 1011
2 3 4 5 6
MMC
1213 8
MCCDA
MCDA0
MCDA1
MCDA2
MCDA3
MCDA4
MCDA5
MCDA6
MCDA7
Signal
MCCK
7
I/O Line
PC28
PC29
PC30
PC31
PA4
PA3
PA5
PA6
PA7
PA8
6430D–ATARM–25-Mar-11
Peripheral
B
B
B
B
A
A
A
A
A
A