Analog Devices SHARC EZ-Extender User manual

a
SHARC®Audio
EZ-Extender®Manual
Revision 1.1, August 2012
Part Number
82-000223-01
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, CrossCore, EngineerZone, EZ-Board,
EZ-Extender, SHARC, 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 SHARC 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 SHARC Audio EZ-Extender has been certified to comply with the
essential requirements of the European EMC directive 2004/108/EC and
therefore carries the “CE” mark.
The SHARC Audio EZ-Extender has been appended to Analog Devices,
Inc. EMC Technical File (EMC TF) referenced DSPTOOLS1, issue 2
dated June 4, 2008 and was declared CE compliant by an appointed Noti-
fied Body (No.0673) as listed below.
Notified Body Statement of Compliance: Z600ANA2.037, dated
May 21, 2010.
Issued by: Technology International (Europe) Limited
56 Shrivenham Hundred Business Park
Shrivenham, Swindon, SN6 8TY, UK
The SHARC 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.

SHARC Audio EZ-Extender Manual v
CONTENTS
PREFACE
Product Overview .......................................................................... x
Purpose of This Manual ................................................................ xi
Intended Audience ........................................................................ xi
Manual Contents ......................................................................... xii
What’s New in This Manual ......................................................... xii
Technical Support ....................................................................... xiii
Supported Products ...................................................................... xiv
Product Information .................................................................... xiv
Analog Devices Web Site ........................................................ xiv
EngineerZone .......................................................................... xv
Related Documents ...................................................................... xvi
USING THE SHARC AUDIO EZ-EXTENDER
Package Contents .......................................................................... 1-2
SHARC Audio EZ-Extender Default Configuration ....................... 1-2
SHARC Audio EZ-Extender Setup ................................................ 1-4
Audio Interface ............................................................................. 1-4
Example Programs ........................................................................ 1-6

Contents
vi SHARC Audio EZ-Extender Manual
SHARC AUDIO EZ-EXTENDER HARDWARE REFERENCE
System Architecture ...................................................................... 2-2
Configuration Switches ................................................................. 2-5
Audio Loopback Switches (SW1–6) ......................................... 2-6
Audio In1 Left Selection Switch (SW7) ................................... 2-6
Audio In1 Right Selection Switch (SW8) ................................. 2-7
Audio In2 Left Selection Switch (SW9) ................................... 2-7
Audio In2 Right Selection Switch (SW10) ............................... 2-8
Audio In3 Left Selection Switch (SW11) ................................. 2-9
Audio In3 Right Selection Switch (SW12) ............................... 2-9
Audio In4 Left Selection Switch (SW13) ............................... 2-10
Audio In4 Right Selection Switch (SW14) ............................. 2-11
Audio In5 Left Selection Switch (SW15) ............................... 2-11
Audio In5 Right Selection Switch (SW16) ............................. 2-12
Audio In6 Left Selection Switch (SW17) ............................... 2-13
Audio In8 Right Selection Switch (SW18) ............................. 2-13
Memory Configuration Switch (SW19) ................................. 2-14
Soft Reset Enable Switch (SW20) .......................................... 2-15
Power LED ................................................................................. 2-16

SHARC Audio EZ-Extender Manual vii
Contents
Connectors ................................................................................. 2-17
Expansion Interface II Connector (J1) ................................... 2-18
RCA Audio Connectors (J2–7) .............................................. 2-18
Differential In/Out Connectors (P1–5) .................................. 2-19
SHARC AUDIO EZ-EXTENDER BILL OF MATERIALS
SHARC AUDIO EZ-EXTENDER SCHEMATIC
INDEX

Contents
viii SHARC Audio EZ-Extender Manual

SHARC Audio EZ-Extender Manual ix
PREFACE
Thank you for purchasing the SHARC® Audio EZ-Extender®, Analog
Devices, Inc. daughter board to the EZ-Board®evaluation system for the
ADSP-21xxx processors.
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 processing, targeted toward premium audio applications.
The EZ-Board and SHARC Audio EZ-Extender are designed to be used
in conjunction with the CrossCore®Embedded Studio (CCES) and Visu-
alDSP++®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 SHARC 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/dsp/tools.

Product Overview
x SHARC Audio EZ-Extender Manual
Product Overview
The SHARC Audio EZ-Extender is a separately sold daughter board that
plugs onto the expansion interface II of the ADSP-21469 EZ-Board and
all future SHARC evaluation boards. The daughter board aids the design
and prototyping phases of analog audio applications.
The board extends the capabilities of the evaluation system by providing a
connection to three analog audio codecs.
The SHARC Audio EZ-Extender features:
• Analog audio interface
• AD1939 – three Analog Devices 192 kHz audio codecs
• 24 channels of audio out (twelve stereo channels)
• Twelve channels of audio in (six stereo channels)
• TDM and I2S modes at 48 KHz, 96 KHz, and 192 KHz
sample rates
• Single-ended input/output
• Three RCA phono jack inputs (4 x 1)
• Three RCA phono jack outputs (4 x 2)
• Differential input/output
• Two DB25 connector inputs
• Three DB25 connector outputs
All of the power necessary to operate the extender is derived from the mat-
ing EZ-Board. Before using any of the interfaces, follow the setup
procedure in “SHARC Audio EZ-Extender Setup” on page 1-4.