Datasheet

34
11011AS–ATARM–04-Oct-10
SAM3N Summary
Figure 9-1. System Controller Block Diagram
Software Controlled
Voltage Regulator
ADC
PIOA/B/C
Matrix
SRAM
Cortex-M3
Flash
Peripherals
Peripheral
Bridge
Zero-Power
Power-on Reset
Supply
Monitor
(Backup)
RTC
Embedded
32 kHz RC
Oscillator
Xtal 32 kHz
Oscillator
Supply
Controller
Brownout
Detector
(Core)
General Purpose
Backup Registers
Reset
Controller
Backup Power Supply
Core Power Supply
vr_on
vr_mode
bod_on
brown_out
rtc_alarm
SLCK
rtc_nreset
proc_nreset
periph_nreset
ice_nreset
Master Clock
MCK
SLCK
core_nreset
Main Clock
MAINCK
SLCK
NRST
FSTT0 - FSTT15
XIN32
XOUT32
osc32k_xtal_en
osc32k_sel
Slow Clock
SLCK
osc32k_rc_en
core_nreset
VDDIO
VDDCORE
VDDOUT
ADVREF
ADx
WKUP0 - WKUP15
bod_core_on
lcore_brown_out
RTT
rtt_alarm
SLCK
rtt_nreset
XIN
XOUT
VDDIO
VDDIN
PIOx
DAC
DAC0
PLL
FSTT0 - FSTT15 are possible Fast Startup Sources, generated by WKUP0-WKUP15 Pins, but are not physical pins.
Embedded
12/8/4 MHz
RC
Oscillator
Xtal
Oscillator
Watchdog
Timer
Power
Management
Controller