ATSAM3S2AA-MU Atmel, ATSAM3S2AA-MU Datasheet - Page 35

• Manufacturer Part Number: ATSAM3S2AA-MU
• Description: IC MCU 32BIT 128KB FLASH 48QFN
• Manufacturer: Atmel
• Series: SAM3Sr

Specifications of ATSAM3S2AA-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: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K 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

10. System Controller
Figure 10-1. System Controller Block Diagram
6500CS–ATARM–24-Jan-11
WKUP0 - WKUP15
FSTT0 - FSTT15
XOUT32
VDDIO
XIN32
XOUT
NRST
XIN
The System Controller is a set of peripherals, which allow handling of key elements of the sys-
tem, such as power, resets, clocks, time, interrupts, watchdog, etc...
See the system controller block diagram in
VDDIO
FSTT0 - FSTT15 are possible Fast Startup Sources, generated by WKUP0-WKUP15 Pins,
but are not physical pins.
Backup Power Supply
SLCK
SLCK
Power-on Reset
Embedded
32 kHz RC
Xtal 32 kHz
Oscillator
(Backup)
Zero-Power
Oscillator
Monitor
General Purpose
Backup Registers
Supply
MAINCK
MAINCK
12 / 8 / 4 MHz
XTAL Oscillator
Embedded
Oscillator
3 - 20 MHz
RC
RTC
RTT
osc32k_xtal_en
osc32k_rc_en
PLLA
PLLB
Slow Clock
rtc_nreset
rtc_alarm
rtt_nreset
XTALSEL
rtt_alarm
SLCK
ON
Controller
out
Reset
SLCK
Main Clock
MAINCK
PLLACK
PLLBCK
Controller
Supply
vddcore_nreset
Management
Controller
Power
proc_nreset
periph_nreset
ice_nreset
vddcore_nreset
vr_on
vr_mode
lcore_brown_out
bod_core_on
Figure 10-1 on page
Matrix
VDDOUT
Input/Output Buffers
Brownout
Software Controlled
Detector
Voltage Regulator
(Core)
SLCK
ADC Analog
DAC Analog
Comparator
Transeivers
Core Power Supply
PIOA/B/C
Circuitry
Circuitry
Analog
USB
Master Clock
MCK
Watchdog
Peripherals
Peripheral
Cortex-M3
Timer
SRAM
Bridge
Flash
SAM3S Summary
VDDIO
VDDIO
35.
VDDCORE
VDDIN
PIOx
ADx
ADVREF
DACx
DDP
DDM
35