Analog Devices SHARC EZ-Extender User manual

a
SHARC®EZ-Extender®
Manual
Revision 3.1, August 2012
Part Number
82-000805-01
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-Extender,
EZ-KIT Lite, 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 EZ-Extender is designed to be used solely in a laboratory
environment. The board is not intended for use as a consumer end prod-
uct 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 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 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: Z600ANA1.018
Issued by: Technology International (Europe) Limited
60 Shrivenham Hundred Business Park
Shrivenham, Swindon, SN6 8TY, UK
The SHARC 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 precau-
tions are recommended to avoid performance degradation or loss of func-
tionality. Store unused extender boards in the protective shipping package.

SHARC 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
EZ-EXTENDER INTERFACES
ADC HSC Interface ...................................................................... 1-1
Breadboard Area ........................................................................... 1-2

Contents
vi SHARC EZ-Extender Manual
EZ-EXTENDER HARDWARE REFERENCE
System Architecture ...................................................................... 2-1
DIP Switches and Jumpers ............................................................ 2-3
Direction/Clock Source Control Switch (SW1) ........................ 2-3
MISO Disconnect Jumper (P6) ............................................... 2-5
SMA Connector Clock Disconnect Jumper (P10) .................... 2-5
EZ-EXTENDER BILL OF MATERIALS
EZ-EXTENDER SCHEMATIC
INDEX

SHARC EZ-Extender Manual vii
PREFACE
Thank you for purchasing the SHARC®EZ-Extender®, Analog Devices
(ADI) extension board to the EZ-KIT Lite®evaluation system for
ADSP-21262 SHARC 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 pro-
cessor, which gives SHARC the bandwidth for sustained high-speed
computations. SHARC represents today’s de facto standard for float-
ing-point processors targeted for premium audio applications.
The SHARC EZ-Extender is designed to be used in conjunction 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 SHARC 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
viii SHARC EZ-Extender Manual
Example programs are available to demonstrate the capabilities of the
SHARC EZ-Extender board.
Product Overview
The SHARC EZ-Extender is a separately sold assembly that plugs onto
the expansion interface of the ADSP-21262 EZ-KIT Lite evaluation
system.
The board extends the capabilities of the evaluation system by providing a
connection between the parallel data access port (PDAP) of the
ADSP-21262 processor and an Analog Devices analog-to-digital
high-speed converter (ADC HSC) evaluation board. Moreover, the
extender broadens the range of the EZ-KIT Lite applications by providing
surface-mounted (SMT) footprints for breadboard capabilities and access
to all of the pins on the EZ-KIT Lite’s expansion interface.
The extender features:
• High-speed converter evaluation board interface
• 40-pin, right angle, 0.1 in. spacing, female socket to con-
nect to analog-to-digital converter boards
• Switches for routing and direction selection
• RJ-45 with serial peripheral interconnect (SPI) to configure
converter registers

SHARC EZ-Extender Manual ix
Preface
• SMT footprint area
• 1206 and 805 footprints
• SOIC24 and SOIC20 footprints
• Dimensions
• 5 in (H) x 5 in (W)
Purpose of This Manual
The SHARC EZ-Extender Manual describes the operation and configura-
tion of the components on the board. A schematic and a bill of materials
are provided as a reference for future ADSP-21262 processor board
designs.
Intended Audience
This manual is a user’s guide and reference to the SHARC 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 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 SHARC EZ-Extender Manual
Manual Contents
The manual consists of:
• Chapter 1, “EZ-Extender Interfaces” on page 1-1
Provides basic board information.
• Chapter 2, “EZ-Extender Hardware Reference” on page 2-1
Provides information on the hardware aspects of the board.
• Appendix A, “EZ-Extender Bill of Materials” on page A-1
Provides a list of components used to manufacture the SHARC
EZ-Extender board.
• Appendix B,“EZ-Extender Schematic” on page B-1
Provides the resources to allow modifications to the SHARC
EZ-Extender or to use as a reference design. Appendix B is part of
the online help.
What’s New in This Manual
This is revision 3.1 of the SHARC EZ-Extender Manual. The manual has
been updated to include CCES information. In addition, modifications
and corrections based on errata reports against the previous manual revi-
sion have been made.
For the latest version of this manual, please refer to the Analog Devices
Web site.

SHARC EZ-Extender Manual xi
Preface
Technical Support
You can reach Analog Devices processors and DSP technical support in
the following ways:
• Post your questions in the processors and DSP support community
at EngineerZone®:
http://ez.analog.com/community/dsp
• Submit your questions to technical support directly at:
http://www.analog.com/support
• E-mail your questions about processors, DSPs, and tools develop-
ment software from CrossCore Embedded Studio or
VisualDSP++:
Choose Help > Email Support. This creates an e-mail to
[email protected] and automatically attaches
your CrossCore Embedded Studio or VisualDSP++ version infor-
mation and license.dat file.
• E-mail your questions about processors and processor applications
to:
[email protected] or
[email protected] (Greater China support)
•IntheUSA only, call 1-800-ANALOGD (1-800-262-5643)
• Contact your Analog Devices sales office or authorized distributor.
Locate one at:
www.analog.com/adi-sales

Supported Products
xii SHARC EZ-Extender Manual
• Send questions by mail to:
Processors and DSP Technical Support
Analog Devices, Inc.
Three Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
USA
Supported Products
The SHARC EZ-Extender is designed as an extension to the ADSP-21262
EZ-KIT Lite evaluation system.
Product Information
Product information can be obtained from the Analog Devices Web site
and the online help.
Analog Devices Web Site
The Analog Devices Web site, www.analog.com, provides information
about a broad range of products—analog integrated circuits, amplifiers,
converters, and digital signal processors.
To access a complete technical library for each processor family, go to
http://www.analog.com/processors/technical_library. The manuals
selection opens a list of current manuals related to the product as well as a
link to the previous revisions of the manuals. When locating your manual
title, note a possible errata check mark next to the title that leads to the
current correction report against the manual.
Also note, myAnalog is a free feature of the Analog Devices Web site that
allows customization of a Web page to display only the latest information

SHARC EZ-Extender Manual xiii
Preface
about products you are interested in. You can choose to receive weekly
e-mail notifications containing updates to the Web pages that meet your
interests, including documentation errata against all manuals. myAnalog
provides access to books, application notes, data sheets, code examples,
and more.
Visit myAnalog to sign up. If you are a registered user, just log on. Your
user name is your e-mail address.
EngineerZone
EngineerZone is a technical support forum from Analog Devices. It allows
you direct access to ADI technical support engineers. You can search
FAQs and technical information to get quick answers to your embedded
processing and DSP design questions.
Use EngineerZone to connect with other DSP developers who face similar
design challenges. You can also use this open forum to share knowledge
and collaborate with the ADI support team and your peers. Visit
http://ez.analog.com to sign up.

Related Documents
xiv SHARC EZ-Extender Manual
Related Documents
For additional information about the product, refer to the following
publications.
If you plan to use the EZ-KIT Lite board in conjunction with a
JTAG emulator, also refer to the documentation that accompanies
the emulator.
Table 1. Related Processor Publications
Title Description
ADSP-21261/ADSP-21262/ADSP-21266
SHARC Processor Data Sheet
General functional description, pinout, and
timing of the processor
ADSP-2126x SHARC Processor Hardware
Reference
Description of the internal processor
architecture and all register functions
ADSP-21160 SHARC DSP Instruction Set
Reference
Description of all allowed processor assembly
instructions

SHARC EZ-Extender Manual 1-1
1 EZ-EXTENDER INTERFACES
This chapter relates how the extender interfaces with the compatible
boards. The information is presented in the following sections.
•“ADC HSC Interface” on page 1-1
•“Breadboard Area” on page 1-2
ADC HSC Interface
The SHARC EZ-Extender can connect to an analog-to-digital high-speed
converter (ADC HSC) evaluation board via the ADC HSC interface. The
ADC HSC interface consists of a 40-pin female header, which contains all
of the control and data signals necessary to transfer data between the par-
allel data access port (PDAP) of the processor and the HSC evaluation
board. Additionally, the extender provides a RJ-45 connector, which con-
tains all of the serial peripheral interconnect (SPI) signals necessary to
configure the control registers of capable high-speed converters. For a
block diagram of the ADC HSC interface, see Figure 2-1.
Before using the SHARC EZ-Extender, familiarize yourself with the docu-
mentation and schematics of the target board and the ADSP-21262
EZ-KIT Lite. For example, on the EZ-KIT Lite, it may be necessary to
disable other devices on the PDAP or disable the push buttons.
To configure the SHARC EZ-Extender to connect to an ADC HSC eval-
uation board, determine the source of the PDAP clock and the direction
of the general-purpose signals, DAI_P15_GP1 and DAI_P16_GP2. To learn
about possible clock settings, refer to “Direction/Clock Source Control

Breadboard Area
1-2 SHARC EZ-Extender Manual
Switch (SW1)” on page 2-3. The setup of the general-purpose signals
DAI_P15_GP1 and DAI_P16_GP2 is dependent on the specific ADC HSC
evaluation board being interfaced; therefore, the board’s model must be
taken into consideration.
The data bus of the EZ-Extender must be enabled before data is read.
Enable the data bus by a memory read from address 0x160 0000, which
the AD[15:0] pins set up as the external port. Then, the AD[15:0] pins can
be set up in PDAP mode.
To learn more about Analog Devices data converters, go to
www.analog.com.
Breadboard Area
SHARC EZ-Extender broadens the range of the EZ-KIT Lite applications
by providing surface mounted (SMT) footprints for breadboard capabili-
ties and access to all of the pins on the EZ-KIT Lite’s expansion interface.

SHARC EZ-Extender Manual 2-1
2 EZ-EXTENDER HARDWARE
REFERENCE
This chapter describes the hardware design of the SHARC EZ-Extender.
The following topics are covered.
•“System Architecture” on page 2-1
Describes the configuration of the extender and explains how the
board components interface with the processor and EZ-KIT Lite.
•“DIP Switches and Jumpers” on page 2-3
Describes the function of the configuration DIP switches and
jumpers.
System Architecture
A detailed block diagram of the SHARC EZ-Extender is shown in
Figure 2-1. Note that the arrow in the bidirectional driver symbols
denotes the direction of the driver when in transmit mode. The bidirec-
tional driver is in transmit mode when the direction pin is pulled high.
Use the diagram in conjunction with information in “DIP Switches and
Jumpers” on page 2-3 section of this manual to configure your SHARC
EZ-Extender.
Before using the SHARC EZ-Extender, familiarize yourself with the docu-
mentation and schematics of the target board and the ADSP-21262
EZ-KIT Lite. For example, on the EZ-KIT Lite, it may be necessary to
disable other devices on the parallel data access port (PDAP) or disable the
push buttons.

System Architecture
2-2 SHARC EZ-Extender Manual
The block diagram in Figure 2-1 shows that each clock and general-pur-
pose signal attached to the analog-to-digital high-speed converter (ADC
HSC) interface is configured depending on how the interface operates.
The EZ-Extender has two clock signals, TX_CLK and RX_CLK. The TX_CLK
signal is used as an output and can be generated in three ways: by applying
a signal via an SMA connector, by using the RX_CLK signal, or by
Figure 2-1. SHARC EZ-Extender Block Diagram

SHARC EZ-Extender Manual 2-3
EZ-Extender Hardware Reference
populating a socket with an oscillator. Only one of these sources can be
used at a time, the other sources must be disabled. For more information
on how to disable the TX_CLK sources, see “SMA Connector Clock Discon-
nect Jumper (P10)” on page 2-5. The RX_CLK signal is generated by the
target board. Both the TX_CLK and RX_CLK can connect to the processor’s
clock-in signal (DAI_P2_CLOCKIN) as an input. See “Direction/Clock
Source Control Switch (SW1)” on page 2-3 for more information.
The ADC interface has two general-purpose signals, DAI_P15_GP1 and
DAI_P16_GP2. The evaluation board with which the extender interfaces
determines how these signals are set up. For information on how to set the
direction and the source of these signals, refer to “Direction/Clock Source
Control Switch (SW1)” on page 2-3.
The ADC interface connects to the PDAP of the ADSP-21262 processor.
The PDAP is multiplexed with the address and data bus. To avoid bus
contention with the memory devices on the EZ-KIT Lite, the driver con-
nected to the data bus of the ADC must be enabled. For more information
about enabling the data bus, see “ADC HSC Interface” on page 1-1.
DIP Switches and Jumpers
The following section describes the function of all of the jumpers and
switches on the EZ-Extender. Before connecting the extender, familiarize
yourself with each possible setting’s effect on your application.
Direction/Clock Source Control Switch (SW1)
A designated DIP switch, SW1, provides an independent direction control
for the general-purpose signals (DAI_P15_GP1 and DAI_P16_GP2), as illus-
trated in Figure 2-1. Each signal can be hardwired to be either transmit or
receive, or can be changed in real time using the DAI_P18 processor pin. If
the DAI_P18 processor pin is intended for the direction control, ensure the
pin is not used for other purposes on the EZ-KIT Lite. When the SW1

DIP Switches and Jumpers
2-4 SHARC EZ-Extender Manual
switch connects a direction control signal to ground (GND), the corre-
sponding signal (signals) is (are) controlled as input. The direction control
functionality is summarized in Table 2-1.
The source of the PDAP clock input signal, DAI_PP2_CLOCKIN, is config-
ured through positions 1 and 2 of the DIP switch SW1, as illustrated in
Figure 2-1. The switch settings are summarized in Table 2-2.
Table 2-1. DAI_P15_GP1/DAI_P16_GP2 Direction Control Settings
SW1 Position 3
SW1 Position 5
SW1 Position 4
SW1 Position 6
DAI_P15_GP1 Direction
DAI_P16_GP2 Direction
OFF OFF EZ-KIT Lite is transmitter
OFF ON DAI_P18 sets the direction:
0= EZ-KIT Lite is receiver
1= EZ-KIT Lite is transmitter
ON OFF EZ-KIT Lite is receiver
ON ON Do not use
Table 2-2. PDAP Clock-in Source Settings
SW1 Position 1
RX_CLK
SW1 Position 2
TX_CLK
DIA_P2_CLOCKIN Source
OFF OFF Not generated by the EZ-Extender
OFF ON In this configuration, the TX_CLK signal must be
generated by one of the user configured clock
sources.
ON OFF RX_CLK
ON ON RX_CLK; in this configuration, the RX_CLK signal is
also routed to the TX_CLK to be used as an output.