Pin Signal name Description
4 TEST No connection
5 VCC Supply voltage (2.4V - 2.8V)
6 Rprog Program resistor
Touch screen controller
TSC2004 (N2450) is a touch screen controller for resistive touch pads. It contains a complete ultralow-power,
12-bit, analog-to-digital (A/D) resistive touch screen converter, including drivers and control logic to measure
touch pressure.
It also has embedded pre-processing function to reduce the output bus load. The host interface in TSC2004
is I2C.
Figure 67 Touch screen controller
Display
Display
Rapido has an external display buffer with 8Mbit display RAM. The input interfaces for display buffer are
ViSSI-12 for image data and LoSSI for commands.
The data interface between display buffer and display is CDP (Compact Display Port), display commands are
sent by LoSSI interface. The display backlight control is controlled by the display.
RM-356
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 6 –25
Copyright © 2008 Nokia. All rights reserved.
To Next Page
Loading...
Need help?
General
