SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 280
SAM3X8E
Manufacturer Part Number
SAM3X8E
Description
Manufacturer
Atmel Corporation
- Current page: 280 of 1465
- Download datasheet (26Mb)
17.4.6
17.4.6.1
Figure 17-5. Raising the VDDUTMI Power Supply
280
280
Zero-Power Power-On
Backup Power Supply
Reset Cell output
Core Power Supply
Oscillator output
Oscillator output
22 - 42 kHz RC
vddcore_nreset
SHDN / vr_on
periph_nreset
Fast RC
proc_nreset
bodcore_in
SAM3X/A
SAM3X/A
Backup Power Supply Reset
Raising the Backup Power Supply
NRST
Note: After “proc_nreset” rising, the core starts fecthing instructions from Flash at 4 MHz.
As soon as the backup voltage VDDUTMI rises, the RC oscillator is powered up and the zero-
power power-on reset cell maintains its output low as long as VDDUTMI has not reached its tar-
get voltage. During this time, the Supply Controller is entirely reset. When the VDDUTMI voltage
becomes valid and zero-power power-on reset signal is released, a counter is started for 5 slow
clock cycles. This is the time it takes for the 32 kHz RC oscillator to stabilize.
After this time, the SHDN pin is asserted and the voltage regulator is enabled. The core power
supply rises and the brownout detector provides the bodcore_in signal as soon as the core volt-
age VDDCORE is valid. This results in releasing the vddcore_nreset signal to the Reset
Controller after the bodcore_in signal has been confirmed as being valid for at least one slow
clock cycle.
Zero-Power POR
7 x Slow Clock Cycles
T
Regulator
ON
Voltage
3 x Slow Clock
Cycles
3 x Slow Clock
Cycles
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
6.5 x Slow Clock
Cycles
Related parts for SAM3X8E
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: