Mode Description
NORMAL
(PWR_ON)
The PMU is in the normal operating mode and is sending out the 32 kHz clock to the
D2800 (BCM21351) and BT/FM module. The BB ASIC in normal operating mode with the
UI enabled.
CHARGING
(PWR_ON)
The phone is in the NORMAL (PWR_ON) mode. The PMU will charge the battery up to
4.2V when the wall charger or host USB Charger cable is plugged in. The phone will stay
in the CHARGING (PWR_ON) mode.
LOCAL Test mode to run diagnostics for trouble-shooting. The phone UI is off.
SLEEP Sleep mode is entered only from the NORMAL (PWR_ON) mode with the aid of SW when
the system’s activity is low to extend the battery life.
FLASHING Flashing mode is for SW downloading.
Note: The actual modes and operation in these modes will be determined by Nokia firmware.
Power Distribution
The following figure shows a top-level view of the power distribution on the Voyager platform.
RM-497
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 – 27
Copyright © 2010 Nokia. All rights reserved.
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