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TWR-LCD-RGB
User’s Manual
Rev. 1.0
Freescale Semiconductor Inc.
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Contents
1 Overview ...................................................................................................................................................... 3
2 Reference Documents .............................................................................................................................. 4
3 Hardware Features ................................................................................................................................... 4
3.1 Tower System connection............................................................................................................................................... 4
3.2 Power Supply ....................................................................................................................................................................... 5
3.3 LCD Display / Driver ......................................................................................................................................................... 5
3.3.1 Timing parameters ............................................................................................................................................................................ 5
3.3.2 Communication Mode ...................................................................................................................................................................... 5
3.3.3 Resistive Touch Overlay .................................................................................................................................................................. 6
3.4 4-way Navigation Pad ....................................................................................................................................................... 7
4 Software Features ..................................................................................................................................... 7
4.1 Swell Software - http://swellsoftware.com ............................................................................................................ 7
4.2 eGUI Software - http://freescale.com/eGUI ........................................................................................................... 8
4.3 Loading Example Pre-Compiled Applications ........................................................................................................ 9
4.3.1 Setup the Tower System .................................................................................................................................................................. 9
4.3.2 Create a New Project for Flashing the TWR-K70F120M ................................................................................................... 9
5 Elevator Connections ............................................................................................................................ 10
6 Jumper Table ........................................................................................................................................... 13
6.1 Mechanical Form Factor ............................................................................................................................................... 13
TWR-LCD-RGB User’s Manual Page 2 of 13
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4.3" WQVGA (480x272) 24-bit TFT LCD
w/ Resistive Touch Overlay
TWR-ELEV (Secondary Expansion Port)
24-bit RGB, I2C, TSS, Analog
CRTOUCH
ReadyPlay
Solution
Resistive Touch Analog (4x)
I2C
24-bit RGB
HSYNC, VSYNC, CLK
Jumpers
Analog
Capacitive Touch Pads
Analog
SPI
1 Overview
The Tower LCD RGB Module (TWR-LCD-RGB) adds a side mounting TFT WQVGA Display to the
Freescale Tower System. It can be used with Tower Processor Modules featuring an RGB interfacing
LCD Controller.
The TWR-LCD-RGB features a 4.3” WQVGA TFT LCD Display with touch sensitive overlay. The LCD
interfaces to the Tower System through a 24-bit RGB interface. The 4-wire resistive touch overlay can
interface directly with a compatible Tower Processor Module using GPIO enabled ADC lines, or can
offload the resistive touch sensing to the on-board Xtrinsic Touch Sensing Platform (CRTouch).
Figure 1 - TWR-LCD-RGB Block Diagram
TWR-LCD-RGB User’s Manual Page 3 of 13
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Figure 2 - Tower System with TWR-LCD-RGB
2 Reference Material
The documents listed below should be referenced for more information on the Freescale Tower
system and the TWR-LCD-RGB. Refer to http://www.freescale.com/tower for the latest revision of all
Tower documentation.
TWR-LCD-RGB Schematics
TWR-LCD-RGB Quick Start Guide
Example Binary Application featuring Swell Software
For additional software applications supporting the TWR-LCD-RGB refer to:
http://freescale.com/eGUI
http://freescale.com/peg
http://swellsoftware.com
3 Hardware Features
This section provides more details about the hardware specific features and functionality of the TWRLCD-RGB.
3.1 Tower System connection
The TWR-LCD-RGB is designed to interface with the secondary side of the Freescale Tower System.
The TWR-LCD-RGB comes pre-attached to an additional TWR-SELE (Secondary Elevator). The LCD
module can be detached from the included TWR-SELE, but it is recommended that the modules
remain attached to avoid any damage to the LCD glass when attempting to reconnect the modules.
For Tower System assemblies that require use of the TWR-LCD-RGB, use the included pre-assembled
TWR-LCD-RGB + TWR-SELE.
TWR-LCD-RGB User’s Manual Page 4 of 13