User Guide

Table of Contents
Introduction............................................................................................................................................................7–7
Phone description .............................................................................................................................................7–7
Energy management........................................................................................................................................... 7–10
Battery and charging ..................................................................................................................................... 7–10
Backup battery................................................................................................................................................ 7–11
Normal and extreme voltages ...................................................................................................................... 7–11
Power key and system power-up................................................................................................................. 7–12
Modes of operation........................................................................................................................................ 7–12
Power distribution......................................................................................................................................... 7–13
Clocking scheme............................................................................................................................................. 7–13
Bluetooth ............................................................................................................................................................. 7–14
FM radio................................................................................................................................................................ 7–15
USB........................................................................................................................................................................ 7–16
CBUS interface...................................................................................................................................................... 7–16
FBUS ...................................................................................................................................................................... 7–16
ECI interface ......................................................................................................................................................... 7–16
Charger interface................................................................................................................................................. 7–16
SIM interface ........................................................................................................................................................ 7–16
µSD card interface ............................................................................................................................................... 7–17
Camera concept ................................................................................................................................................... 7–18
Cameras........................................................................................................................................................... 7–18
Main camera characteristics.......................................................................................................................... 7–18
Secondary camera characteristics ................................................................................................................ 7–19
Camera flash ................................................................................................................................................... 7–20
Hardware accelerator .................................................................................................................................... 7–21
User interface....................................................................................................................................................... 7–22
Display module............................................................................................................................................... 7–22
[[[ERROR: No title available for <master_section>]]] .......................................................................................7–
Main display characteristics ..................................................................................................................... 7–23
Cover UI display characteristics ............................................................................................................... 7–24
Keyboard and other keys............................................................................................................................... 7–25
Backlight and illumination............................................................................................................................ 7–27
Display and cover UI key illumination..................................................................................................... 7–27
Keyboard illumination.............................................................................................................................. 7–27
Power LED .................................................................................................................................................. 7–28
MR sensor........................................................................................................................................................ 7–29
ASICs...................................................................................................................................................................... 7–30
RAPIDO ASIC..................................................................................................................................................... 7–30
EM ASIC N2300 ................................................................................................................................................ 7–30
EM ASIC N2200 ................................................................................................................................................ 7–30
Device memories................................................................................................................................................. 7–30
RAPIDO memories NOR flash and SDRAM ..................................................................................................... 7–30
Combo memory .............................................................................................................................................. 7–30
Audio concept...................................................................................................................................................... 7–31
Audio HW architecture................................................................................................................................... 7–31
Internal microphone...................................................................................................................................... 7–31
External microphone...................................................................................................................................... 7–32
Internal earpiece............................................................................................................................................ 7–32
Internal speaker ............................................................................................................................................. 7–33
External earpiece............................................................................................................................................ 7–34
RM-135
System Module and User Interface Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 7 –3
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