User's Manual

System Overview and Functional Block Descriptions
1320x-QE128EVB Reference Manual, Rev. 0.0
Freescale Semiconductor 3-7
3.5.2 16x2 Monochrome Character LCD Display
The 1320x-QE128EVB supports a 16x2 monochrome character LCD that provides for alpha-numeric
readout. The LCD module is mounted on top of the main circuit board and connects via a 16 pin header
with 0.1in spacing. For pinout information, see Section 4.6, “LCD Connector”.
• The module supports two similar LCD modules, one of which is the CFAH1602NYG-JP STN
daughter board from Crystalfontz.
• The LCD operates from 5 Vdc generated from the main operating voltage. The LCD module
requires a highly regulated 5V so that the high voltages generated on-board the display are
consistent.
• The LCD uses no backlighting
• LCD interface to the MCU is via an 4-bit parallel interface
• The on-board controller is a industry-standard HD44780 compatible controller
3.5.3 Debug/Development Interface
The 1320x-QE128EVB contains a standard BDM debug port. For pinout information see Section 4.8,
“Debug/Development Connector (BDM Interface)”). A 6-pin connector is provided for the standard BDM
debug interface.
3.5.4 RS232 Interface
The 1320x-QE128EVB provides a secondary standard RS232-compatible UART serial port with the
connection provided by a standard DB9 connector (J14). For pinout information see Section 4.9,
“RS232-Compatible UART Connector”.
3.6 GPIO Connectors
Two GPIO connectors (J3 and J4) provide connection to data interfaces and GPIO for external system
expansion of the MCU resources. For pinout information see Section 4.10, “GPIO Connectors”.
• Some GPIO are shared with on-board devices. The user should be careful to avoid conflict.
• External current draw should be limited to 50 mA maximum.