AT32UC3C2512C Automotive Atmel Corporation, AT32UC3C2512C Automotive Datasheet - Page 53

• Manufacturer Part Number: AT32UC3C2512C Automotive
• Manufacturer: Atmel Corporation

7.6.3.2
Table 7-2.
Note:
7.6.3.3
9166C–AVR-08/11
Index
0
1
2
3
4
5
(1)
1. The sleep mode index corresponds to the argument to the sleep instruction.
Sleep Mode
Idle
Frozen
Standby
Stop
DeepStop
Static
Supported sleep modes
Waking from sleep modes
Sleep Modes
The CPU and affected modules are restarted when the sleep mode is exited. This occurs when
an interrupt triggers. Note that even if an interrupt is enabled in sleep mode, it may not trigger if
the source module is not clocked.
The following sleep modes are supported. These are detailed in
The power level of the internal voltage regulator is also adjusted according to the sleep mode to
reduce the internal regulator power consumption.
There are two types of wake up sources from sleep, synchronous and asynchronous. Synchro-
nous wake up sources are any non-masked interrupt. Asynchronous wake up sources are AST,
WDT, external interrupts from EIC, external resetor any asynchronous wake up enabled in the
AWEN (Asynchronous Wake Up Enable) register. The valid wake up sources for each sleep
mode is detailed in
Table 7-3.
• Idle: The CPU is stopped, the rest of the chip is operating.
• Frozen: The CPU and HSB modules are stopped, peripherals are operating.
• Standby: All synchronous clocks are stopped, but the clock sources are running, allowing
• Stop: As Standby, but oscillators, and other clock sources are stopped. 32KHz (if enabled),
• DeepStop: All synchronous clocks and clock sources are stopped. 32KHz oscillator can run if
• Static: All clock sources, including RC oscillator are stopped. 32KHz oscillator can run if
Index
CPU
Stop
Stop
Stop
Stop
Stop
Stop
quick wake-up to normal mode.
RC oscillators, AST and WDT will still operate.
enabled. RC oscillator still operates. Bandgap voltage reference and BOD is turned off.
enabled. Bandgap voltage reference and BOD detector are turned off.
0
1
2
(1)
HSB
Run
Stop
Stop
Stop
Stop
Stop
Sleep Mode
Idle
Frozen
Standby
Wake up sources
Section 7-3 on page
PBx
GCLK
Run
Run
Stop
Stop
Stop
Stop
Wake up Sources
Synchronous, Asynchronous
Synchronous
Asynchronous
Clock
sources
Run
Run
Run
Stop
Stop
Stop
(1)
53.
, Asynchronous
Osc32
Run
Run
Run
Run
Run
Run
RCSYS
Run
Run
Run
Run
Run
Stop
BOD &
Bandgap
On
On
On
On
Off
Off
Table 7-2 on page
AT32UC3C
Voltage
Regulator
Normal mode
Normal mode
Normal mode
Low power mode
Low power mode
Low power mode
53.
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