ATSAM3S4AA-MU Atmel, ATSAM3S4AA-MU Datasheet - Page 798

• Manufacturer Part Number: ATSAM3S4AA-MU
• Description: IC MCU 32BIT 256KB FLASH 48QFN
• Manufacturer: Atmel
• Series: SAM3Sr

Specifications of ATSAM3S4AA-MU

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 1.95 V
• Data Converters: A/D 8x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• 3rd Party Development Tools: JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ATSAM3S-EK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

35.6
35.6.1
35.6.2
35.6.3
35.7
798
Product Dependencies
Bus Topology
SAM3S Preliminary
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 35-2.
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 35-3.
Figure 35-3. High Speed MultiMedia Memory Card Bus Topology
Instance
Instance
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
HSMCI
I/O Lines
Peripheral IDs
18
ID
MCCDA
MCDA0
MCDA1
MCDA2
MCDA3
Signal
MCCK
1
9 1011
2 3 4 5 6
MMC
1213 8
7
I/O Line
PA29
PA28
PA30
PA31
PA26
PA27
6500C–ATARM–8-Feb-11
Peripheral
C
C
C
C
C
C