Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Fiche De Données
Codes de produits
ATSAMD21-XPRO
932
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
36.7 Peripheral Power Consumption
Since USB peripheral complies with the Universal Serial Bus (USB) v2.0 standard, USB peripheral power consumption is
described a specific section
described a specific section
36.7.1 All peripheral except USB
Default conditions, except where noted:
z
Operating conditions
z
V
VDDIN
= 3.3V
z
Oscillators
z
XOSC (crystal oscillator) stopped
z
XOSC32K (32kHz crystal oscillator) running with external 32kHz crystal
z
OSC8M at 8MHz
z
Clocks
z
OSC8M used as main clock source
z
CPU, AHB and APBn clocks undivided
z
The following AHB module clocks are running: NVMCTRL, HPB2 bridge, HPB1 bridge, HPB0 bridge
z
All other AHB clocks stopped
z
The following peripheral clocks running: PM, SYSCTRL
z
All other peripheral clocks stopped
z
I/Os are inactive with internal pull-up
z
CPU in IDLE0 mode
z
Cache enabled
z
BOD33 disabled
In this default conditions, the power consumption I
default
is measured.
Operating mode for each peripheral in turn:
z
Configure and enable the peripheral GCLK (When relevant, see conditions)
z
Unmask the peripheral clock
z
Enable the peripheral (when relevant)
z
Set CPU in IDLE0 mode
z
Measurement I
periph
z
Wake-up CPU via EIC (async: level detection, filtering disabled)
z
Disable the peripheral (when relevant)
z
Mask the peripheral clock
z
Disable the peripheral GCLK (when relevant, see conditions)
Each peripheral power consumption provided in table x.y is the value (I
periph
- I
default
), using the same measurement
method as for global power consumption measurement