Freescale Semiconductor, Inc.
SECTION 1
GENERAL INFORMATION
ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
1.1 INTRODUCTION
The DragonBallTM-EZ (MC68EZ328) Application Development System (M68EZ328ADS) is designed to supply users with an environment to develop MC68EZ328 based application software. Moreover, this board can be used as a reference for real-life product design. M68EZ328ADS provides several interface ports for application software and target board debug purpose.
DragonBallTM-EZ ADS altogether has two versions released for customers. This is the sec- ond version. The board design and layout in second version has been changed a great deal. It includes simplifying the design for enhancing production quality and the easiness to use. However, most of the interfaces to external peripherals remain unchanged in order to pro- vide high degree of compatibility with previous version. For more details on the changes, Please refer to Appendix A .
This document will discuss the usage and system details of the M68EZ328ADS v2.0.
1.2 FEATURES
•MC68EZ328 CPU
•Memory Subsystem
—2 MB FLASH (Expandable to 4MB)
—8 MB EDO DRAM
•Debug ports
—One RS232 serial port interface to MC68EZ328 internal UART —One External RS232 serial port connecting to on-board UART chip —Direct logic analyzer interface to system bus
•LCD and Touch Panel Interface
—MC68EZ328 LCD interface
—Burr-Brown 12-bit touch panel controller ADS7843E available for pen input
•LED Indicators
—Red LED for power
—Green LED for system heart beat
—Yellow LED for status of MC68EZ328 pin PD0 —Yellow LED for status of MC68EZ328 pin PD1
•Board operation mode support
—MC68EZ328 EMU mode —MC68EZ328 normal mode —MC68EZ328 bootstrap mode
•Debug Monitor
—MetroWerks Codewarrior Target Monitor using serial port
MOTOROLAM68EZ328ADS v2.0 USER’S MANUAL1-6
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