Motorola M68EZ328ADS - Manual (Page 29)

Comparison of M68EZ328ADS Version 1.x and 2.0
MOTOROLA M68EZ328ADS v2.0 USER’S MANUAL A-28
APPENDIX A
COMPARISON OF M68EZ328ADS VERSION 1.X AND 2.0
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-1 shows the difference between the M68EZ328ADS v1.x and v2.0.
A.2 SOFTWARE
Table A-2 shows the software change in M68EZ328ADS 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
MC68EZ328
8M-byte EDO DRAM using the DWE signal of
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.
baud rate = 57600bps
ST16C2552A Serial Port with max. baud rate =
115200bps
Buzzer No Citizen CHB-03E
Bus Width 8-bit/16-bit 16-bit only
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
Driver
Burr-Brown ADS7843E is used. A new device driver is required.
DWE
Pin 12 (DWE/UCLK/PE3) of MC68EZ328 is programmed as DWE signals for on-board EDO
DRAM. It cannot be used as Port or UCLK again.
IrDA The IrDA module needs to be enabled by setting PD4 to zero.
Freescale Semiconductor, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
ARCHIVED BY FREESCALE SEMICONDUCT
OR,
INC.
2005