Datasheet

30
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
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. Table 5-1 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.
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
PIO State
at Wake
Up
Consumption
(1) (2)
Wake-up
Time
(3)
Backup
Mode
ON OFF
OFF
(Not powered)
VROFF = 1
or
WFE +
SLEEPDEEP = 1
WUP0-15 pins
SM alarm
RTC alarm
RTT alarm
Reset
Previous state
saved
PIOA &
PIOB &
PIOC
Inputs with
pull ups
1 µA typ
(4)
< 1 ms
Wait 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
Clocked
back
Previous state
saved
Unchanged 32.2 µA
(5)
< 10 µs
Wait 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
Clocked
back
Previous state
saved
Unchanged 27.6 µA
< 100 µs
Sleep Mode ON ON
Powered
(6)
(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
RTC alarm
RTT alarm
USB wake-up
Clocked
back
Previous state
saved
Unchanged
(7)
(7)