Freescale Semiconductor TWR-LCD Graphical LCD module TWR-LCD TWR-LCD Manuel D’Utilisation
Codes de produits
TWR-LCD
TWR-LCD User’s Manual
Page 4 of 13
Figure 2 - Tower System with TWR-LCD
2 Reference Documents
The documents listed below should be referenced for more information on the Freescale Tower
system and the TWR-LCD. Refer to
system and the TWR-LCD. Refer to
Tower documentation.
TWR-LCD Schematics
TWR-LCD Quick Start Guide
Truly TFT2N0451-E LCD Module Specification
3 Hardware Features
This section provides more details about the features and functionality of the TWR-LCD.
3.1 Power Supply
The TWR-LCD can be powered as a standalone device from the Mini-B USB connector. The TWR-LCD
can also be powered from a source in an assembled Tower System via the 5.0V supply on the TWR-
ELEV Side Expansion Port. When attached to a Tower Elevator board, it is required that the board be
externally powered from the Elevator board; additionally the USB connector on the TWR-LCD can still
be used to communicate over USB to the on-board MCF51JM MCU. On-board power regulation will
provide the necessary core voltage (3.3V) and backlight driver voltage (15.5V).
can also be powered from a source in an assembled Tower System via the 5.0V supply on the TWR-
ELEV Side Expansion Port. When attached to a Tower Elevator board, it is required that the board be
externally powered from the Elevator board; additionally the USB connector on the TWR-LCD can still
be used to communicate over USB to the on-board MCF51JM MCU. On-board power regulation will
provide the necessary core voltage (3.3V) and backlight driver voltage (15.5V).