Analog Devices Blackfin Audio EZ-Extender User manual

a
Blackfin®Audio
EZ-Extender®Manual
Revision 2.2, July 2012
Part Number
82-000195-01
Analog Devices, Inc.
One Technology Way
Norwood, Mass. 02062-9106

Copyright Information
© 2012 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.
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, CrossCore, EngineerZone,
EZ-Extender, EZ-KIT Lite, and VisualDSP++ 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 Audio EZ-Extender is designed to be used solely in a labora-
tory environment. The board is not intended for use as a consumer end
product or as a portion of a consumer end product. The board is an open
system design which does not include a shielded enclosure and therefore
may cause interference to other electrical devices in close proximity. This
board should not be used in or near any medical equipment or RF devices.
The Blackfin Audio 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 Audio EZ-Extender has been appended to Analog Devices,
Inc. EMC Technical File (EMC TF) referenced ‘DSPTOOLS1’ dated
December 21, 1997 and was declared CE compliant by an appointed
Notified Body (No.0673) as listed below.
Notified Body Statement of Compliance: Z600ANA1.024
Issued by: Technology International (Europe) Limited
56 Shrivenham Hundred Business Park
Shrivenham, Swindon, SN6 8TY, UK
The Blackfin Audio EZ-Extender 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 extender boards in the protective ship-
ping package.

Blackfin Audio 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 Support ......................................................................... xi
Supported Products ...................................................................... xii
Product Information .................................................................... xii
Analog Devices Web Site ........................................................ xii
EngineerZone ........................................................................ xiii
Related Documents ...................................................................... xiv
BLACKFIN AUDIO EZ-EXTENDER INTERFACES
Audio EZ-Extender Setup ............................................................. 1-1
Analog Audio Interface .................................................................. 1-2
Digital Audio Interface .................................................................. 1-4

Contents
vi Blackfin Audio EZ-Extender Manual
AUDIO EZ-EXTENDER HARDWARE REFERENCE
System Architecture ...................................................................... 2-2
Configuration Jumpers and Switches ............................................. 2-4
ADSP-BF537 EZ-KIT Lite Select Jumper (JP1.1/2) ................. 2-5
EZ-KIT Lite SPORT0 Enable Jumper (JP1.3/4) ...................... 2-6
EZ-KIT Lite SPORT1 Enable Jumper (JP1.5/6) ...................... 2-6
SPORT Select Jumper (JP1.7/8) .............................................. 2-6
AD1938 MCLK Source Jumper (JP2) ...................................... 2-6
SPDIF Loopback Jumper (JP4) ............................................... 2-7
Analog Input Gain Switches (SW1–4) ..................................... 2-7
AUDIO EZ-EXTENDER BILL OF MATERIALS
AUDIO EZ-EXTENDER SCHEMATIC
INDEX

Blackfin Audio EZ-Extender Manual vii
PREFACE
Thank you for purchasing the Blackfin®Audio EZ-Extender®, Analog
Devices, Inc. daughter board to the EZ-KIT Lite®evaluation system for
the ADSP-BF533, ADSP-BF537, and ADSP-BF561 Blackfin processors.
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.
EZ-KIT Lites and Audio EZ-Extenders are designed to be used in con-
junction with the CrossCore®Embedded Studio (CCES) and
VisualDSP++®software development environments. The development
environment facilitates advanced application code development and
debug, such as:
• Create, compile, assemble, and link application programs written
in C++, C, and Audio EZ-Extender assembly
• Load, run, step, halt, and set breakpoints in application programs
• Read and write data and program memory
• Read and write core and peripheral registers
• Plot memory
To learn more about Analog Devices development software, go to
http://www.analog.com/processors/tools.

Product Overview
viii Blackfin Audio EZ-Extender Manual
Product Overview
The Blackfin Audio EZ-Extender is a separately sold daughter board that
plugs onto the expansion interface of the ADSP-BF533, ADSP-BF537, or
ADSP-BF561 EZ-KIT Lite evaluation system. The daughter board aids
the design and prototyping phases of the ADSP-BF533, ADSP-BF537,
and ADSP-BF561 processor targeted applications.
Please visit www.analog.com/EX1-Audio for additional information,
including CCES support.
The board extends the capabilities of the evaluation system by providing a
connection to audio codecs, including two analog audio codecs and one
dual analog/digital audio codec with an interface to digital Sony Philips
Digital Interface (SPDIF) audio.
The following is a list of the Blackfin Audio EZ-Extender interfaces.
• Analog audio interface
• AD1938 – Analog Devices 192 kHz audio codecs
• Four stereo analog audio inputs via RCA jacks
• Eight stereo analog audio outputs via RCA jacks
• Digital audio interface
One ADAV801 – Analog Devices SPDIF transceiver with sample
rate converter
• One SPDIF input via an RCA jack
• One SPDIF output via an RCA jack
• Expansion interface on both sides of the board for stacking other
EZ-Extender boards

Blackfin Audio EZ-Extender Manual ix
Preface
Before using any of the interfaces, follow the setup procedure in “Audio
EZ-Extender Setup” on page 1-1.
Example programs are available to demonstrate capabilities of the Blackfin
Audio EZ-Extender board.
Purpose of This Manual
The Blackfin Audio EZ-Extender Manual describes operation and configu-
ration of the extender board components. A schematic and a bill of
materials are provided as a reference guide for future Blackfin processor
board designs.
Intended Audience
This manual is a user’s guide and reference to the Blackfin Audio
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 Analog Devices processors can use
this manual but should supplement it with other texts that describe your
target architecture. For the locations of these documents, see “Related
Documents”.
Programmers who are unfamiliar with CCES or VisualDSP++ should refer
to the online help and user’s manuals.

Manual Contents
x Blackfin Audio EZ-Extender Manual
Manual Contents
The manual consists of:
• Chapter 1, “Blackfin Audio EZ-Extender Interfaces” on page 1-1
Provides basic board information.
• Chapter 2, “Audio EZ-Extender Hardware Reference” on page 2-1
Provides information on the hardware aspects of the board.
• Appendix A, “Audio EZ-Extender Bill Of Materials” on page A-1
Provides a list of components used to manufacture the
EZ-Extender board.
• Appendix B, “Audio EZ-Extender Schematic” on page B-1
Provides the resources to allow EZ-KIT Lite board-level debugging
or to use as a reference guide. Appendix B is part of the online help.
What’s New in This Manual
This is revision 2.2 of the Blackfin Audio EZ-Extender Manual. The man-
ual has been updated to include CCES information. In addition,
modifications and corrections based on errata reports against the previous
manual revision have been made.
For the latest version of this manual, please refer to the Analog Devices
Web site.