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ATSAM4S-XPLD
24
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
5.5.4
Low-power Mode Summary Table
The modes detailed above are the main low-power modes. Each part can be set to on or off separately and wake up
sources can be individually configured.
sources can be individually configured.
below shows a summary of the configurations of the low-power modes.
Notes:
1.
The external loads on PIOs are not taken into account in the calculation.
2.
Supply Monitor current consumption is not included.
3.
When considering wake-up time, the time required to start the PLL is not taken into account. Once started, the device works with the 4/8/12
MHz fast RC oscillator. The user has to add the PLL start-up time if it is needed in the system. The wake-up time is defined as the time
taken for wake up until the first instruction is fetched.
MHz fast RC oscillator. The user has to add the PLL start-up time if it is needed in the system. The wake-up time is defined as the time
taken for wake up until the first instruction is fetched.
4.
Total consumption 1
μA typ to 1.8V on VDDIO to 25°C.
5.
20.4
μA on VDDCORE, 32.2 μA for total current consumption.
6.
Depends on MCK frequency.
7.
Depends on MCK frequency. In this mode, the core is supplied but some peripherals can be clocked.
Table 5-1.
Low-power Mode Configuration Summary
Mode
SUPC,
32 kHz Osc,
RTC, RTT
Backup
Registers,
POR
(Backup
Region)
Regulator
Core
Memory
Peripherals
Mode Entry
Potential Wake Up
Sources
Core at
Wake
Up
PIO State
while in Low
Power Mode
Power Mode
PIO State
at Wake
Up
Consumption
Wake-up
Backup
Mode
Mode
ON
OFF
OFF
(Not powered)
VROFF = 1
or
WFE +
SLEEPDEEP = 1
WUP0-15 pins
SM alarm
RTC alarm
RTT alarm
SM alarm
RTC alarm
RTT alarm
Reset
Previous state
saved
PIOA &
PIOB &
PIOC
Inputs with
pull ups
PIOB &
PIOC
Inputs with
pull ups
1
< 1 ms
Wait Mode
w/Flash in
Standby
Mode
w/Flash in
Standby
Mode
ON
ON
Powered
(Not clocked)
WAITMODE = 1
+ FLPM = 0
or
WFE +
SLEEPDEEP = 0
+ LPM = 1
+ FLPM = 0
Any Event from:
Fast startup through
WUP0-15 pins
RTC alarm
RTT alarm
USB wake-up
Fast startup through
WUP0-15 pins
RTC alarm
RTT alarm
USB wake-up
Clocked
back
back
Previous state
saved
Unchange
d
d
32.2
μA
< 10
μs
Wait Mode
w/Flash in
Deep Power
Down Mode
w/Flash in
Deep Power
Down Mode
ON
ON
Powered
(Not clocked)
WAITMODE = 1
+ FLPM = 1
or
WFE +
SLEEPDEEP = 0
+ LPM = 1
+ FLPM = 1
Any Event from:
Fast startup through
WUP0-15 pins
RTC alarm
RTT alarm
USB wake-up
Fast startup through
WUP0-15 pins
RTC alarm
RTT alarm
USB wake-up
Clocked
back
back
Previous state
saved
Unchange
d
d
27.6
μA
< 100
μs
Sleep Mode
ON
ON
(Not clocked)
WFE
or
WFI +
SLEEPDEEP = 0
+ LPM = 0
Entry mode =WFI
Interrupt Only;
Entry mode =WFE
Any Enabled Interrupt
and/or Any Event
from:
Fast start-up through
WUP0-15 pins
Interrupt Only;
Entry mode =WFE
Any Enabled Interrupt
and/or Any Event
from:
Fast start-up through
WUP0-15 pins
RTC alarm
RTT alarm
USB wake-up
Clocked
back
back
Previous state
saved
Unchange
d
d