Motorola user manual Appendix a Comparison of M68EZ328ADS Version 1.X, Hardware, Software

Freescale Semiconductor, Inc.

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005

Freescale Semiconductor, Inc.

Comparison of M68EZ328ADS Version 1.x and 2.0

APPENDIX A

COMPARISON OF M68EZ328ADS VERSION 1.X AND 2.0

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005

This section describes the difference between the M68EZ328ADS version 1.x and 2.0. If user is not upgrading the development platform from M68EZ328ADS v1.x to v2.0, this sec- tion can be ignored.

A.1 HARDWARE

Table A-1shows the difference between the M68EZ328ADS v1.x and v2.0.

Table A-1. Comparison of M68EZ328ADS v1.x and v2.0

Descriptions	Version 1.x			Version 2.0
Flash Memory	2M-byte Flash Memory using four AT29BV040			2M-byte Flash Memory using one
				MBM29LV160T (expandable to 4M-byte Flash
				Memory)
SRAM	256K-byte SRAM			No SRAM
EDO DRAM	4M-byte EDO DRAM using the	WE	signal of	8M-byte EDO DRAM using the	DWE	signal of
	MC68EZ328			MC68EZ328
Touch Panel Interface	MAXIM MAX1249 and four transistors			Burr-Brown ADS7843E
Expansion Socket	Same pin assignment			Same pin assignment
LCD Connector	Same pin assignment			Same pin assignment
IrDA	No			HSDL-3201
Debug Port	ADI Port and MC68681 Serial Port with max.			ST16C2552A Serial Port with max. baud rate =
	baud rate = 57600bps			115200bps
Buzzer	No			Citizen CHB-03E
Bus Width	8-bit/16-bit			16-bit only

A.2 SOFTWARE

Table A-2shows the software change in M68EZ328ADS v2.0.

Table A-2. Software Change for using M68EZ328ADS v2.0

Items				Descriptions
Initizalization Code		The new ADS is equipped with different memory device. So, the initizalization code needs to
		be changed.
Touch Panel
Controller Device		Burr-Brown ADS7843E is used. A new device driver is required.
Driver
		Pin 12	(DWE/UCLK/PE3) of MC68EZ328 is programmed as DWE signals for on-board EDO
DWE
		DRAM. It cannot be used as Port or UCLK again.
	IrDA	The IrDA module needs to be enabled by setting PD4 to zero.

MOTOROLAM68EZ328ADS v2.0 USER’S MANUALA-28

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