diff -r 4816d766a08a -r f345bda72bc4 Symbian3/PDK/Source/GUID-113B3755-1797-5D1B-8E07-8A18F5FE1504.dita --- a/Symbian3/PDK/Source/GUID-113B3755-1797-5D1B-8E07-8A18F5FE1504.dita Tue Mar 30 11:42:04 2010 +0100 +++ b/Symbian3/PDK/Source/GUID-113B3755-1797-5D1B-8E07-8A18F5FE1504.dita Tue Mar 30 11:56:28 2010 +0100 @@ -1,45 +1,45 @@ - - - - - -Power -StatesDescribes three power states that are defined by the Kernel. - -

The three power states are defined by the enum values of the TPowerState enum -defined in e32power.h.

-
-Domain Manager - -Power Management - + + + + + +Power +StatesDescribes three power states that are defined by the Kernel. +
    +
  • Off - a state +where the device and all peripherals are powered off or inactive, or are characterised +by negligible power consumption due to current leakage to the electric and +electronic circuits that make up the system. This state is achieved as a result +of controlled system shutdown resulting from a user action, an application +request, UI inactivity, or as a result of accidental loss of power. This may +also be achieved as a result of putting the system into a hibernation state. +Note that a reboot is necessary to return the system to the Active state; +this could be a cold reboot, or a warm reboot if the system was put into a +hibernation state.

  • +
  • Standby - a +low power consuming state that results from turning off most system resources +(clocks, voltages), peripherals, memory banks (where possible), cpu and internal +logic, while still retaining the state prior to the transition. Typically, +the only systems that are active are those that are required to detect the +events that force the transition back to the Active state (e.g. RTC, clocks +and Peripherals involved in detecting hardware events). Returning to the Active +state will normally take a far shorter period of time than that required to +reboot the system. This state is achieved as a result of user action or application +request.

  • +
  • Active - the +fully active state.

  • +
+

The three power states are defined by the enum values of the TPowerState enum +defined in e32power.h.

+
+Domain Manager + +Power Management +
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