Introduction; Abbreviations - Nokia 616 Service Manual

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Introduction

This document specifies the Baseband Module of the TF4 Engine Board of the TFE-4/RV-
1 (Nokia 610/616) program. The baseband module consists mainly the DCT-4 baseband
engine chipset, and the B2B System and Power/RS232 Connector. The PWB is very similar
to the NPL-1 Engine PWB. The only difference is, that the UI components, the acoustical
parts and the internal antenna are left off. The TF4 phone engine is a Dual-Mode GSM-
phone having the DCT4 generation baseband and RF circuitry.
The baseband module is developed, as part of the DCT4 common Baseband, having some
product specific blocks of it's own. It is a copy of the NPL-1 product engine. The main
difference is the B2B Connectors and the missing UI-Components.

Abbreviations

BACK_UP
BSI
NO_SUPPLY
PWR_OFF
PWRONX
RESET
RTC
SLEEP
SLEEPX
UEM
UPP
VBACK
VBAT
VCHAR
VCHAR
DET
V , V
MSTR+ MSTR-
V_BU , V_BU
COFF+
VRTC
WIS
Issue 2.0 Mar/2005
Company Confidential
UEM state where UEM has backup voltage
Battery Size Indicator
UEM state where UEM has no supply what so ever
UEM state where phone is off
Signal from power on key. '1' = key pressed.
UEM state where regulators are enabled
UEM internal Real Time Clock
UEM power saving state controlled by UPP
SLEEP control signal from UPP
Universal Energy Management
Universal Phone Processor
Backup battery voltage
Main battery voltage (4.2V)
Charger input voltage
Charger detection threshold level
Master Reset threshold level (2.1 V / 1.9 V)
Backup battery threshold level (3.1 V / 2.8 V)
COFF-
Regulator voltage for RTC
Warrant Information State
Copyright © 2005 Nokia Corporation.
Company Confidential
TFE-4/RV-1
TF4 Technical Information
Page 8b-5