Power Up When Charger Connected; Normal Battery Voltage - Nokia NSW-5 Series Service Manual

NSW-5
System Module UT5U
turning on the lights. MCU–SW must start also the RF receiver parts at
this point.
V5V–regulator (for RF) default value is off in power–up, and can be con-
trolled on via serial bus when needed.

Power up when charger connected

Normal battery voltage

VCHAR
VR1, VBB, VR6,
V2V
RFCEN
RFCSETTLED
RFC (VCXO)
COBBACLK
PURX
SLCLK
CCONTINT
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The power up procedure is similar to process described in the previous
chapter with the exception that the rising edge of VCHAR triggers the
power up in CCONT.
Also CCONT sets output CCONTINT. MAD detects the interrupt, and after
that reads CCONT status register to find out the reason for the interrupt
(charger in this case). The phone will remain in the "acting dead" state,
which means that the user interface is not activated unless the power but-
ton is pressed. Only the charging activity is indicated on the display.
CCONTINT is generated both in the case the charger is connected, and
in the case the charger is disconnected.
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PAMS Technical Documentation
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