The SHARC USB EZ-Extender is warranted against defects in materials
and workmanship for a period of one year from the date of purchase from
Analog Devices or from an authorized dealer.
Disclaimer
Analog Devices, Inc. reserves the right to change this product without
prior notice. Information furnished by Analog Devices is believed to be
accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use; nor for any infringement of patents or other rights of
third parties which may result from its use. No license is granted by implication or otherwise under the patent rights of Analog Devices, Inc.
Trademark and Service Mark Notice
The Analog Devices logo, SHARC, VisualDSP++, EZ-KIT Lite, and
EZ-Extender are registered trademarks of Analog Devices, Inc.
All other brand and product names are trademarks or service marks of
their respective owners.
Regulatory Compliance
The SHARC USB EZ-Extender has been certified to comply with the
essential requirements of the European EMC directive 89/336/EEC
(inclusive 93/68/EEC) and, therefore, carries the “CE” mark.
The SHARC USB EZ-Extender had been appended to Analog Devices
Development Tools Technical Construction File referenced
“DSPTOOLS1” dated December 21, 1997 and was awarded CE Certification by an appointed European Competent Body and is on file.
The EZ-KIT Lite evaluation system contains ESD
(electrostatic discharge) sensitive devices. Electrostatic charges readily accumulate on the human
body and equipment and can discharge without
detection. Permanent damage may occur on devices
subjected to high-energy discharges. Proper ESD
precautions are recommended to avoid performance
degradation or loss of functionality. Store unused
EZ-KIT Lite boards in the protective shipping
package.
CONTENTS
PREFACE
Product Overview ......................................................................... viii
Purpose of This Manual .................................................................. ix
Intended Audience .......................................................................... ix
Manual Contents ............................................................................ ix
What’s New in This Manual ............................................................. x
Technical or Customer Support ........................................................ x
Supported Products ......................................................................... xi
Product Information ....................................................................... xi
Related Documents ................................................................... xi
Notation Conventions .................................................................... xiv
USB EZ-EXTENDER INTERFACE
USB EZ-Extender Setup ............................................................... 1-1
USB Software Documentation ................................................. 1-2
USB 2.0 Interface ......................................................................... 1-2
USB EZ-EXTENDER HARDWARE REFERENCE
System Architecture ...................................................................... 2-1
Bus Switches ................................................................................. B-3
USB Interface ............................................................................... B-4
INDEX
viSHARC USB EZ-Extender Manual
PREFACE
Thank you for purchasing the SHARC® USB EZ-Extender®, Analog
Devices, Inc. extension board to the EZ-KIT Lite® evaluation systems for
ADSP-21262, ADSP-21364, and ADSP-21369 processors.
The SHARC processors are based on a 32-bit super Harvard architecture
that includes a unique memory architecture comprised of two large
on-chip, dual-ported SRAM blocks coupled with a sophisticated IO processor, which gives a SHARC processor the bandwidth for sustained
high-speed computations. SHARC processors represents today’s de facto
standard for floating-point processor targeted for premium audio
applications.
The EZ-KIT Lites and SHARC USB EZ-Extender are designed to be used
in conjunction with the VisualDSP++® development environment. VisualDSP++ offers a powerful programming tool with new flexibility that
significantly decreases time required to port software code to a processor,
reducing time-to-market.
To learn more about Analog Devices development software, go to
http://www.analog.com/processors/tools/.
SHARC USB EZ-Extender Manualvii
Product Overview
Product Overview
The SHARC USB EZ-Extender is a separately sold extension board that
plugs onto the expansion interface of the ADSP-21262, ADSP-21364, or
ADSP-21369 EZ-KIT Lite evaluation system. The extension board aids
the design and prototyping phases of ADSP-21262, ADSP-21364, or
ADSP-21369 processor targeted applications.
The board extends the capabilities of the evaluation system by providing a
connection between the parallel port or asynchronous memory bus of the
SHARC processor and a USB 2.0 device.
•USB 2.0 interface
D PLX Technology’s NetChip 2272 device
D USB driver and application code
D USB logo certified
•No power supply required
D Derives power from EZ-KIT Lite
•CE certified
•Dimensions
D 3.13 in (H) x 3.6 in (W)
Before using any of the interfaces, follow the setup procedure in “USB
EZ-Extender Setup” on page 1-1.
Example programs are available to demonstrate the capabilities of the
SHARC USB EZ-Extender board.
viiiSHARC USB EZ-Extender Manual
Preface
Purpose of This Manual
The SHARC USB EZ-Extender Manual describes the operation and configuration of the components on the extension board. A schematic and a
bill of materials are provided as a reference for future SHARC processor
board designs.
Intended Audience
This manual is a user’s guide and reference to the SHARC USB
EZ-Extender. Programmers who are familiar with the Analog Devices
SHARC processor architecture, operation, and development tools are the
primary audience for this manual.
Programmers who are unfamiliar with VisualDSP++ or EZ-KIT Lite evaluation software should refer to the ADSP-21262, ADSP-21364, or
ADSP-21369 Evaluation System Manual, VisualDSP++ online Help, and
user’s or getting started guides. For the locations of these documents, refer
to “Related Documents”.
•Chapter 2, “USB EZ-Extender Hardware Reference” on page 2-1
Provides information on the hardware aspects of the board.
•Appendix A, “USB EZ-Extender Bill Of Materials” on page A-1
Provides a list of components used to manufacture the
EZ-Extender board.
SHARC USB EZ-Extender Manualix
What’s New in This Manual
•Appendix B, “USB EZ-Extender Schematic” on page B-1
Provides the resources to allow EZ-KIT Lite board-level debugging
or to use as a reference design.
L
Appendix B now is part of the online Help. The PDF version of
the SHARC USB EZ-Extender Manual is located in the
Docs\EZ-KIT Lite Manuals folder on the installation CD. Alterna-
tively, the book can be found on the Analog Devices Web site:
www.analog.com/processors.
What’s New in This Manual
This edition of the SHARC USB EZ-Extender Manual has been updated
for the latest revision of VisualDSP++.
Technical or Customer Support
You can reach Analog Devices, Inc. Customer Support in the following
ways:
•Visit the Embedded Processing and DSP products Web site at