Analog Devices Blackfin USB-LAN EZ-Extender User manual

Blackfin USB-LAN EZ-Extender
Manual
Revision 1.0, January 2005
Part Number
82-000845-01
Analog Devices, Inc.
One Technology Way
Norwood, Mass. 02062-9106 a

Copyright Information
© 2005 Analog Devices, Inc., ALL RIGHTS RESERVED. This docu-
ment may not be reproduced in any form without prior, express written
consent from Analog Devices, Inc.
Printed in the USA.
Limited Warranty
The USB-LAN 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 impli-
cation or otherwise under the patent rights of Analog Devices, Inc.
Trademark and Service Mark Notice
The Analog Devices logo, Blackfin, VisualDSP++, and EZ-KIT Lite 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 Blackfin USB-LAN 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 Blackfin USB-LAN EZ-Extender had been appended to Analog
Devices Development Tools Technical Construction File referenced
“DSPTOOLS1” dated December 21, 1997 and was awarded CE Certifi-
cation by an appointed European Competent Body and is on file.
The EZ-KIT Lite evaluation system contains ESD
(electrostatic discharge) sensitive devices. Electro-
static 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.

Blackfin USB-LAN EZ-Extender Manual v
CONTENTS
PREFACE
Product Overview ......................................................................... viii
Purpose of This Manual .................................................................. ix
Intended Audience .......................................................................... ix
Manual Contents ............................................................................. x
What’s New in This Manual ............................................................. x
Technical or Customer Support ....................................................... xi
Supported Products ......................................................................... xi
Product Information ...................................................................... xii
Related Documents .................................................................. xii
Notation Conventions .................................................................... xiv
USB-LAN EZ-EXTENDER INTERFACES
USB-LAN EZ-Extender Setup ....................................................... 1-1
USB Software .......................................................................... 1-2
Ethernet Software .................................................................... 1-3
USB 2.0 Interface ......................................................................... 1-3
Ethernet Interface ......................................................................... 1-4
Optional ADSP-BF537 EZ-KIT Lite Interfaces ............................. 1-5

CONTENTS
vi Blackfin USB-LAN EZ-Extender Manual
Power-Over-Ethernet .............................................................. 1-5
MII Interface .......................................................................... 1-6
USB-LAN EZ-EXTENDER HARDWARE REFERENCE
System Architecture ...................................................................... 2-2
Jumper Setting ............................................................................. 2-3
Power Select Jumper (JP1) ....................................................... 2-3
LAN Power Jumper (JP2) ........................................................ 2-5
Link Jumper (JP3) .................................................................. 2-5
Switch Settings ............................................................................. 2-6
ADDR Enable Switch (SW1.1) ............................................... 2-6
FLAGS Enable Switch (SW1.2) ............................................... 2-7
USB IRQ Enable Switch (SW1.3) ........................................... 2-7
Test Mode Enable Switch (SW1.4) .......................................... 2-8
Serial ROM Enable Switch (SW2.1) ........................................ 2-8
IOS[2:0] Switch (SW2.2, SW2.3, SW2.4) ............................... 2-9
BILL OF MATERIALS
INDEX

Blackfin USB-LAN EZ-Extender Manual vii
PREFACE
Thank you for purchasing the Blackfin®USB-LAN EZ-Extender, Analog
Devices, Inc. extension board to the EZ-KIT Lite®evaluation system for
ADSP-BF533, ADSP-BF537, and ADSP-BF561 Blackfin processors.
The Blackfin processors are embedded processors that support a Media
Instruction Set Computing (MISC) architecture. This architecture is the
natural merging of RISC, media functions, and digital signal processing
characteristics towards delivering signal processing performance in a
microprocessor-like environment.
The EZ-KIT Lite and USB-LAN EZ-Extender are designed to be used in
conjunction with the VisualDSP++®development environment. Visu-
alDSP++ offers a powerful programming tool with new flexibility that
significantly decreases the time required to port software code to a proces-
sor, reducing time-to-market.
To learn more about Analog Devices development software, go to
http://www.analog.com/processors/tools/.

Product Overview
viii Blackfin USB-LAN EZ-Extender Manual
Product Overview
The Blackfin USB-LAN EZ-Extender is a separately sold extension board
that plugs onto the expansion interface of the ADSP-BF533,
ADSP-BF537, or ADSP-BF561 EZ-KIT Lite evaluation system. The
extension board aids the design and prototyping phases of ADSP-BF533,
ADSP-BF537, or ADSP-BF561 processor targeted applications.
The board extends the capabilities of the evaluation system by providing a
connection between the Asynchronous Memory Bus of the Blackfin pro-
cessor (Asynchronous Memory Bank 3) and either a USB 2.0 or a 10/100
Mbps Ethernet device.
The following is a list of the Blackfin USB-LAN EZ-Extender interfaces.
• USB 2.0 Interface
DPLX’s Technology Netchip 2272 device
DUSB Driver and Application code
DUSB Logo Certified
• Ethernet Interface
DSMSC’s LAN 91C111 device supported on the
ADSP-BF533 EZ-KIT and ADSP-BF561 EZ-KIT Lites
DIEEE802.3.AF Compliant Power-Over-Ethernet applica-
tion on the ADSP-BF537 EZ-KIT Lite
DSMSC’s MII Connector to evaluate different PHYs with the
ADSP-BF537 EZ-KIT Lite
DEthernet Stack and Application code
• No Power Supply Required
DDerives Power from EZ-KIT Lite
• CE Certified

Blackfin USB-LAN EZ-Extender Manual ix
Preface
• Dimensions
D3.13 in (H) x 3.6 in
Before using any of the interfaces, follow the setup procedure in
“USB-LAN EZ-Extender Setup” on page 1-1.
Example programs are available to demonstrate the capabilities of the
Blackfin USB-LAN EZ-Extender board.
Purpose of This Manual
The Blackfin USB-LAN 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 Blackfin processor
board designs.
Intended Audience
This manual is a user’s guide and reference to the Blackfin USB-LAN
EZ-Extender. Programmers who are familiar with the Analog Devices
Blackfin processor architecture, operation, and development tools are the
primary audience for this manual.
Programmers who are unfamiliar with VisualDSP++ or EZ-KIT Lite eval-
uation software should refer to the ADSP-BF533, ADSP-BF537, or
ADSP-BF561 Evaluation System Manual, VisualDSP++ online Help, and
user’s or getting started guides. For the locations of these documents, refer
to “Related Documents”.

Manual Contents
x Blackfin USB-LAN EZ-Extender Manual
Manual Contents
The manual consists of:
• Chapter 1, “USB-LAN EZ-Extender Interfaces” on page 1-1
Provides basic board information.
• Chapter 2, “USB-LAN EZ-Extender Hardware Reference” on
page 2-1
Provides information on the hardware aspects of the board.
• Appendix A, “Bill Of Materials” on page A-1
Provides a list of components used to manufacture the
EZ-Extender board.
• Appendix B, “Schematics” on page B-1
Provides the resources to allow EZ-KIT Lite board-level debugging
or to use as a reference design.
LThis appendix is not part of the online Help. The online Help
viewers should go to the PDF version of the Blackfin USB-LAN
EZ-Extender Manual located in the Docs\EZ-KIT Lite Manuals
folder on the installation CD to see the schematics. Alternatively,
the schematics can be found on the Analog Devices Web site,
www.analog.com/processors.
What’s New in This Manual
This is the first edition of the Blackfin USB-LAN EZ-Extender Manual.

Blackfin USB-LAN EZ-Extender Manual xi
Preface
Technical or Customer Support
You can reach processor Tools Support in the following ways.
• Visit the Embedded Processing and processor products Web site at
http://www.analog.com/processors/technicalSupport
• E-mail tools questions to
[email protected]
• E-mail processor questions to
[email protected]
• Phone questions to 1-800-ANALOGD
• Contact your Analog Devices, Inc. local sales office or authorized
distributor
• Send questions by mail to:
Analog Devices, Inc.
One Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
USA
Supported Products
The Blackfin USB-LAN EZ-Extender is designed as an extension board to
the ADSP-BF533, ADSP-BF537, and ADSP-BF561 EZ-KIT Lite evalua-
tion systems.

Product Information
xii Blackfin USB-LAN EZ-Extender Manual
Product Information
You can obtain product information from the Analog Devices Web site,
from the product CD-ROM, or from the printed publications (manuals).
Analog Devices is online at www.analog.com. Our Web site provides infor-
mation about a broad range of products—analog integrated circuits,
amplifiers, converters, and digital signal processors.
Related Documents
For information on product related development software, see the follow-
ing publications.
Table 1. Related Processor Publications
Title Description
•ADSP-BF533 Embedded Processor
Datasheet
•ADSP-BF536/ADSP-BF537 Embed-
ded Processor Datasheet
•ASP-BF561 Blackfin Embedded Sym-
metric Multi-Processor Datasheet
General functional description, pinout, and
timing.
•ADSP-BF533 Blackfin Processor Hard-
ware Reference
•ADSP-BF537 Blackfin Processor Hard-
ware Reference
•ASP-BF561 Blackfin Processor Hard-
ware Reference
Description of internal processor architecture
and all register functions
Blackfin Processor Instruction Set Reference Description of all allowed processor assembly
instructions.

Blackfin USB-LAN EZ-Extender Manual xiii
Preface
All documentation is available online. Most documentation is available in
printed form.
Visit the Technical Library Web site to access all processor and tools man-
uals and data sheets:
http://www.analog.com/processors/resources/technicalLibrary
Table 2. Related VisualDSP++ Publications
Title Description
•ADSP-BF533 EZ-KIT Lite Evaluation
System Manual
•ADSP-BF537 EZ-KIT Lite Evaluation
System Manual
•ADSP-BF561 EZ-KIT Lite Evaluation
System Manual
Description of the EZ-KIT Lite features and
usage.
Note: For the ADSP-BF537 EZ-KIT Lite,
there is additional Getting Started with
ADSP-BF537 EZ-KIT Lite.
VisualDSP++ User’s Guide Description of VisualDSP++ features and usage
VisualDSP++ Assembler and Preprocessor Man-
ual
Description of the assembler function and
commands
VisualDSP++ C/C++ Complier and Library
Manual for Blackfin Processors
Description of the complier function and com-
mands for Blackfin processors
VisualDSP++ Linker and Utilities Manual Description of the linker function and com-
mands
VisualDSP++ Loader Manual Description of the loader function and com-
mands

Notation Conventions
xiv Blackfin USB-LAN EZ-Extender Manual
Notation Conventions
Text conventions used in this manual are identified and described as
follows.
Example Description
Close command
(File menu)
Titles in reference sections indicate the location of an item within the
VisualDSP++ environment’s menu system (for example, the Close
command appears on the File menu).
{this | that} Alternative required items in syntax descriptions appear within curly
brackets and separated by vertical bars; read the example as this or
that. One or the other is required.
[this | that] Optional items in syntax descriptions appear within brackets and sepa-
rated by vertical bars; read the example as an optional this or that.
[this,…] Optional item lists in syntax descriptions appear within brackets
delimited by commas and terminated with an ellipse; read the example
as an optional comma-separated list of this.
.SECTION Commands, directives, keywords, and feature names are in text with
letter gothic font.
filename Non-keyword placeholders appear in text with italic style format.
Note: For correct operation, ...
A Note provides supplementary information on a related topic. In the
online version of this book, the word Note appears instead of this
symbol.
Caution: Incorrect device operation may result if ...
Caution: Device damage may result if ...
A Caution identifies conditions or inappropriate usage of the product
that could lead to undesirable results or product damage. In the online
version of this book, the word Caution appears instead of this symbol.
Warning: Injury to device users may result if ...
A Warning identifies conditions or inappropriate usage of the product
that could lead to conditions that are potentially hazardous for the
devices users. In the online version of this book, the word Warning
appears instead of this symbol.
L
a
[

Blackfin USB-LAN EZ-Extender Manual xv
Preface
LAdditional conventions, which apply only to specific chapters, may
appear throughout this document.

Notation Conventions
xvi Blackfin USB-LAN EZ-Extender Manual

Blackfin USB-LAN EZ-Extender 1-1
1 USB-LAN EZ-EXTENDER
INTERFACES
After following the setup procedures for both the Blackfin USB-LAN
EZ-Extender and EZ-KIT Lite (ADSP-BF533, ADSP-BF537 or
ADSP-BF561), the chapter describes each of the interfaces the extender
supports.
The information is presented in the following order.
•“USB 2.0 Interface” on page 1-3
•“Ethernet Interface” on page 1-4
•“Optional ADSP-BF537 EZ-KIT Lite Interfaces” on page 1-5
USB-LAN EZ-Extender Setup
It is very important to set up all of the components of the system contain-
ing the USB-LAN EZ-Extender before applying power to that system.
The following procedure is recommended for the correct setup.
Power your system when these steps are completed:
1. Read the applicable design interface section in this chapter—the
text provides an overview of the capabilities of the interface.
2. Read “System Architecture” on page 2-2 to understand the physical
connections of the extension board. For detailed information, refer
to “Schematics on page B-1”.

USB-LAN EZ-Extender Setup
1-2 Blackfin USB-LAN EZ-Extender
3. Remove any rubber feet that may be attached to the EZ-KIT Lite.
In place of these rubber feet, install the 4 nylon feet and screws
provided with the USB-LAN EZ-Extender. Install the nylon feet in
the mounting holes of the EZ-KIT Lite’s PCB. Flip the EZ-KIT
Lite upside down so that the three expansion headers (J1–3) are
facing up.
4. Set the switches and jumpers on USB-LAN EZ-Extender board.
Use the block diagram in Figure 2-1 on page 2-2 in conjunction
with “Jumper Setting” on page 2-3 and “Switch Settings” on
page 2-6.
5. Set the switches and jumpers on EZ-KIT Lite board. If not already,
familiarize yourself with the documentation and schematics of the
EZ-KIT Lite (see “Related Documents”). Compare the expansion
interface signals of the USB-LAN EZ-Extender board with the sig-
nals of the EZ-KIT Lite board to ensure there is no contention. For
example, it may be necessary to disable other devices connected to
the expansion interface of the processor and disable the push but-
tons on the EZ-KIT Lite.
6. Install the USB-LAN EZ-Extender on the EZ-KIT Lite via the
three-connector expansion interface.
7. Configure any other interfacing boards, for example, another
EZ-Extender board.
USB Software
For information on the USB software (host-side and device-side), refer to
the USB Software Readme.txt file located in the
... \VisualDSP++ install
path\Blackfin\EZ-KITs\USB-LAN EZ-EXTENDER\usb directory.

Blackfin USB-LAN EZ-Extender 1-3
USB-LAN EZ-Extender Interfaces
Ethernet Software
For information on the LAN software, refer to the LAN Software
Readme.txt file located in the
... \VisualDSP++ install path\Black-
fin\EZ-KITs\USB-LAN EZ-EXTENDER\lan directory.
USB 2.0 Interface
The USB-LAN EZ-Extender allows you to connect a USB 2.0 chip to a
Blackfin processor without any other programmable logic required. PLX’s
(formerly Netchip) Net2272 device ties directly to the Asynchronous
Memory Bank 3 of the Blackfin processor. You can read from and write to
the USB 2.0 controller by directly addressing the named memory bank.
You can reset the Net2272 processor by asserting LOW these flag pins: PF11
on the ADSP-BF533 processor, PF6 on the ADSP-BF537 processor, and
PF11 on the ADSP-BF561 processor.
The flag pins can be used for push buttons or LEDs on the respective
EZ-KIT Lite; consequently, the user must make the proper changes to
that EZ-KIT Lite. The switch settings required for each of the respective
EZ-KIT Lites are described in the USB Software Readme.txt file in the
... \Blackfin\EZ-KITs\USB-LAN EZ-EXTENDER\usb subdirectory of the Visu-
alDSP++ installation directory. The readme file describes the USB
software, source code, drivers, and explains how to run a USB-based
application.
LFor correct switch settings, refer to the schematics drawing of the
respective device.
The USB IRQ line of the extender connects to PF10 on the ADSP-BF533,
PF7 on the ADSP-BF537, and PF10 on the ADSP-BF561 processors.
These flag pins may be used for push buttons or LEDs on the respective
EZ-KIT Lites; consequently, the user must make the proper changes to
that EZ-KIT Lite.

Ethernet Interface
1-4 Blackfin USB-LAN EZ-Extender
When writing to and reading from the USB device using the EZ-KIT
Lites, use memory addresses from Table 1-1.
Ethernet Interface
The USB-LAN EZ-Extender allows you to connect a 10/100 Mbps Ether-
net chip to a Blackfin processor. SMSC’s LAN91C111 device ties directly
to the Asynchronous Memory Bank 3 of the Blackfin processor. You can
read from and write to the Ethernet controller by directly addressing the
named memory bank.
You can reset the Ethernet processor by asserting the board reset on the
ADSP-BF533 and ADSP-BF561 EZ-KIT Lites. The reset connects to a
supervisory reset circuit managed by the Analog Devices ADM708 IC
device. ADM708 also asserts a reset to the Ethernet chip at power-up.
The Ethernet IRQ line connects to the PF9 flag pin of the ADSP-BF533
processor and PF9 of the ADSP-BF561 processor. The flag pins may be
used for push buttons or LEDs on the respective EZ-KIT Lite; conse-
quently, the user must remember to make the proper changes to that
EZ-KIT Lite. The switch settings required for each of the respective
EZ-KIT Lites are described in the LAN Software Readme.txt file in the
... \Blackfin\EZ-KITs\USB-LAN EZ-EXTENDER\lan subdirectory of the Visu-
Table 1-1. USB Device Memory
EZ-KIT Connects to Starting Address Ending Address
ADSP-BF533 EZ-KIT Lite 0x2030 0000 0x2030 007F
ADSP-BF537 EZ-KIT Lite 0x2030 0000 0x2030 007F
ADSP-BF561 EZ-KIT Lite 0x2C00 0000 0x2C00 007F