Table of Contents
Introduction............................................................................................................................................................6–7
Phone description .............................................................................................................................................6–7
Energy management..............................................................................................................................................6–8
Battery and charging ........................................................................................................................................6–8
Backup battery...................................................................................................................................................6–9
Normal and extreme voltages .........................................................................................................................6–9
Power key and system power-up................................................................................................................. 6–10
Modes of operation........................................................................................................................................ 6–10
Power distribution......................................................................................................................................... 6–11
Clocking scheme............................................................................................................................................. 6–11
Bluetooth ............................................................................................................................................................. 6–12
FM radio................................................................................................................................................................ 6–12
High-speed USB.................................................................................................................................................... 6–13
CBUS interface...................................................................................................................................................... 6–13
FBUS ...................................................................................................................................................................... 6–13
ECI interface ......................................................................................................................................................... 6–13
Charger interface................................................................................................................................................. 6–13
SIM interface ........................................................................................................................................................ 6–13
µSD card interface ............................................................................................................................................... 6–14
Accelerometer...................................................................................................................................................... 6–15
I/O Expander ........................................................................................................................................................ 6–15
GPS interface........................................................................................................................................................ 6–16
WLAN functional description.............................................................................................................................. 6–18
TV out interface ................................................................................................................................................... 6–21
Camera concept ................................................................................................................................................... 6–21
Imaging characteristics ................................................................................................................................. 6–21
Imaging HWA.................................................................................................................................................. 6–22
User interface....................................................................................................................................................... 6–23
Resistive touch screen ................................................................................................................................... 6–23
Proximity sensor ....................................................................................................................................... 6–23
Touch screen controller............................................................................................................................ 6–25
Display ............................................................................................................................................................. 6–25
Display........................................................................................................................................................ 6–25
Backlight and illumination............................................................................................................................ 6–26
Digital Ambient Light Sensor (ALS) .............................................................................................................. 6–27
ASICs...................................................................................................................................................................... 6–28
RAPIDOYAWE .................................................................................................................................................. 6–28
EM ASIC N2300 (Betty).................................................................................................................................... 6–28
EM ASIC N2200 (Avilma)................................................................................................................................. 6–28
Device memories................................................................................................................................................. 6–29
Combo memory .............................................................................................................................................. 6–29
Audio concept...................................................................................................................................................... 6–29
Audio HW architecture................................................................................................................................... 6–29
Internal microphone...................................................................................................................................... 6–30
External microphone...................................................................................................................................... 6–31
Internal earpiece............................................................................................................................................ 6–32
Internal speakers............................................................................................................................................ 6–33
External earpiece............................................................................................................................................ 6–33
Vibra ................................................................................................................................................................ 6–34
AV connector................................................................................................................................................... 6–35
RM-356
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 6 –3
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