ATSAM3S ATMEL [ATMEL Corporation], ATSAM3S Datasheet - Page 36

• Manufacturer Part Number: ATSAM3S
• Description: AT91 ARM Cortex M3-based Processor
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 10-1. System Controller Block Diagram
36
SAM3S Summary
WKUP0 - WKUP15
FSTT0 - FSTT15
XOUT32
VDDIO
XIN32
XOUT
NRST
XIN
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
XTALSEL
rtt_nreset
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
vr_on
vr_mode
vddcore_nreset
bod_core_on
lcore_brown_out
Matrix
VDDOUT
Input/Output Buffers
Brownout
Software Controlled
Detector
Voltage Regulator
(Core)
SLCK
DAC Analog
ADC 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
VDDIO
VDDIO
VDDCORE
VDDIN
PIOx
ADx
ADVREF
DACx
DDP
DDM
6500AS–ATARM–11-Dec-09