1-28 Power Modes
MX3-CE Reference Guide E-EQ-MX3CERG-A-ARC
The first wakeup key press or touch is not sent to the operating system or running application – the
first keypress or touch is only used to wake up the unit and reset the timers. Once the unit has
transitioned from the Suspend mode to the On mode, the unit, keyboard and touch screen function
normally.
Critical Suspend Mode
The purpose of the Critical Suspend mode is to reduce power consumption of the MX3-CE to a
low level that still retains the contents of SDRAM. The unit enters Critical Suspend Mode only
when the Main Battery has failed or is hot-swapped. The Backup Battery is supplying power to
the unit during Critical Suspend Mode.
When hot-swapping (the Main Battery is removed), the display turns off, the BATT M LED begins
to flash red, all peripherals are shut down, the CPU clock is stopped, and power is removed from
the PCMCIA card.
When the MX3-CE is in the Critical Suspend state (the Main Battery is in place and the unit is
being powered by the Backup Battery), the display turns off, the BATT M LED begins to flash
red, all peripherals are shut down, the CPU clock is stopped, and power is removed from the
PCMCIA card. The MX3-CE is saving the state prior to the Main Battery failing and cannot be
used.
If a new fully charged main battery is installed before the Backup Battery is depleted
(approximately 5 minutes) the MX3-CE transitions to the Suspend state. To resume operation tap
the Power key once or touch the screen with the stylus.
If the Backup Battery is depleted before a fully charged Main Battery is inserted, the MX3-CE
immediately turns itself Off and all unsaved information is lost. Insert a fully charged Main Battery
and press the Power button to turn the MX3-CE On.
Off Mode
The unit is in Off Mode when the Main Battery and the Backup Battery are depleted. Insert a fully
charged Main Battery and press the Power button to turn the MX3-CE On.
