User Guide

Camera concept

The camera is supported by DM500 (N1400) Camera accelerator, which is used for image and video processing.

DM-500 uses 128Mbit stacked DDR SDRAM. The camera module includes 5MPix main camera, CIF+ secondary

camera, Flash LED and ADP1653 LED driver which are connected to DM500.

Figure 59 Camera block diagram

User Interface

User interface

The UI module contains the following main features:

• ITU keypad and five-way cursor control and dedicated multimedia key implemented on a standard cross-

point matrix

• Finger position sensing beneath the five-way cursor control for the implementation of scrolling features

in the UI

• Two different lighting zones for the UI features described below

The cross-point matrix and LEDs are connected to the handset engine using the I/O expander described below,

and the finger position sensing controller is connected via an I2C bus.

RM-348; RM-349; RM-350

System Module and User Interface

Issue 2 COMPANY CONFIDENTIAL Page 8 –15