Nokia RM-132 Service Manual & Parts Manual

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Nokia RM-132 Service Manual & Parts Manual Manual pdf 306 page image

Application processorThe application processor is also called an application ASIC because it is processing application SW andhandles the UI SW. It consists of the application processor and peripheral subsystems such as camera, displayand keyboard driver blocks.Absolute maximum ratingsSignal Min Nom Max Unit NotesBattery voltage (idle) -0.3 +4.5 V Battery voltage maximum value isspecified during charging is activeBattery voltage (Call) +3.2 +4.3 V Battery voltage maximum value isspecified during charging is activeCharger input voltage -0.3 +20 VBack-Up supply voltage 0 2.5 2.6 V Maximum capacity of the backuppower supply 4 μAh.Phone modes of operationMode DescriptionNO_SUPPLY (dead) mode means that the main battery is not present or its voltage is too low (belowEM ASIC N2200 master reset threshold) and that the back-up battery voltage is too low.BACK_UP The main battery is not present or its voltage is too low but back-up battery voltage isadequate and the 32 kHz oscillator is running (RTC is on).PWR_OFF In this mode (warm), the main battery is present and its voltage is over EM ASIC N2200master reset threshold. All regulators are disabled, PurX is on low state, the RTC is onand the oscillator is on. PWR_OFF (cold) mode is almost the same as PWR_OFF (warm),but the RTC and the oscillator are off.RESET RESET mode is a synonym for start-up sequence. In this mode certain regulators areenabled and after they and RFClk have stabilized, the system reset (PurX) is releasedand PWR_ON mode entered. RESET mode uses 32 kHz clock to count the REST modedelay (typically 16 ms).SLEEP SLEEP mode is entered only from PWR_ON mode with the aid of SW when the system’sactivity is low.FLASHING FLASHING mode is for SW downloading.Voltage limitsParameter Description ValueVMSTR Master reset threshold (N2200) 2.2 V (typ.)VMSTR+ Threshold for charging, rising (N2300) 2.1 V (typ.)VMSTR- Threshold for charging, falling (N2300) 1.9 V (typ.)VCOFF+ Hardware cut off (rising) 2.9 V (typ.)RM-132; RM-133Nokia Customer Care System ModulePage 9 –8 COMPANY CONFIDENTIAL Issue 1Copyright © 2006 Nokia. All rights reserved.