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11.2. Suspend Transition Conditions
The BHT switches to suspend when the power key is pressed, when the event that prohibits suspend has been
completed and the auto power OFF time has elapsed, and when the method used to switch to suspend is called
from the application.
Events that prohibit suspend
- Wireless connection open (Excludes BHT-400 models used in USA and Canada.)
- IrDA connection open
- Connector communication being performed
- Key being pressed
- Touch panel being tapped
The auto power OFF time when the BHT is powered by the battery and when it is installed on the CU can be set or
acquired at the PwrMng.Settings.AutoPowerOffBattery and AutoPowerOffExt properties, respectively. Auto power
OFF can be disabled by setting this property to "0".
It is also possible to switch to suspend from the application by calling up the PwrMng.Shutdown method.
Furthermore, operation after the transition to suspend can be specified by setting the parameters for the methods.
Parameter
WARM
SUSPEND
COLD_BOOT_REGINIT
COLD_BOOT_REGREMAIN
SYSMODIFY
COLD
Warm boot and cold boot
The memory contents retention status differs between warm boot and cold boot.
Files in flash memory
Files in RAM
Data being edited
Registry information
(*1) If the registry is saved, the information is restored to the values at the point it is saved.
Warm boot is performed after power OFF. There is no need to turn the
power ON, the contents of the RAM are retained.
The BHT switches to suspend. Press the power key to turn ON the power.
The contents of the RAM are retained provided that the sub-battery does
not become fully discharged.
The BHT cold boots automatically after power OFF. The contents of the
RAM are deleted, and the registry is reinitialized.
The BHT cold boots automatically after power OFF. The contents of the
registry at this time are saved, and then restored when the BHT is started
up.
The BHT cold boots automatically after power OFF, and the consecutive
RAM allocation is maintained.
The BHT cold boots automatically after power OFF,. If the registry has been
saved, the BHT is booted based on the values for that registry, however, if it
has not been saved, the BHT is booted based on the values for the default
registry value.
Warm Boot
Cold Boot
●
●
●
–
–
–
●
– (*1)
Description
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