Cirrus Logic CRD7410-BA User's Guide

CRD7410-BA User’s Guide

http://www.cirrus.com

Release 1.2

Copyright © Cirrus Logic, Inc. 2004

(All Rights Reserved)

Feb ‘04

DS622UMC2

Contacting Cirrus Logic Support

r

A

A

A

r

For all product questions and inquiries contact a Cirrus Logic Sales Representative.
To find the one nearest to you go to www.cirrus.com

IMPORTANT NOTICE

Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable.
However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or
implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that
information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at
the time of order acknowled gm ent, including those pe rtaining to warranty, patent infringem ent, and lim itation of liab ility. No
responsibility is assumed by Cirrus for the use of this information, including use of this inform ation as th e basis for man ufacture o
sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by
furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights,
trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information
contained herein and gives consent for copies to be made of the information only for use within your organization with respect to
Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as copying for general
distribution, advertising or promotional purposes, or for creating any work for resale.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH,
PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). CIRRUS
PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN AIRCRAFT SYSTEMS, MILITARY

PPLICATIONS, PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, LIFE SUPPORT PRODUCTS OR OTHER

CRITICAL APPLICATIONS (INCLUDING MEDICAL DEVICES, AIRCRAFT SYSTEMS OR COMPONENTS AND PERSONAL OR

UTOMOTIVE SAFETY OR SECURITY DEVICES). INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS
UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY,
EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE
CUSTOMER OR CUSTOMER’S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL

PPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS,
EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS’ FEES AND
COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES.

Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in
this document may be trademarks or service marks of their respective owners.

Supply of this product does not convey a license under the relevant intellectual property of Thomson multimedia and/o
Fraunhofer Gesellschaft nor imply any right to use this product in any finished end user or ready-to-use final product. An
inde pendent license for such us e is required. For details, please visit http://www.mp3licensing.com

Windows Media is a registered trademark of Microsoft Corporation. The product includes technology owned by Microsoft
Corporation and cannot be used or distributed without a license from Microsoft Licensing, Inc.

.

2 CRD7410-BA User’s Guide - DS622UMC2

Copyright 2004 Cirrus Logic

Table of Contents

Chapter 1 CRD7410-BA Board Architecture .............................................. 7

1.1 Overview ......................................................................................................................................... 7

1.1.1 Main Subsystems .................................................................................................................. 7

1.2 Main Subsystems..........................................................................................................................10

1.2.1 Decoder Subsystem ............................................................................................................ 10

1.2.2 Audio Subsystem.................................................................................................................11

1.2.2.1 Internal DAC............................................................................................................... 11

1.2.2.2 External DAC .............................................................................................................11

1.2.2.3 Subsystem Design Details ......................................................................................... 11

1.2.3 User Interface Subsystem ................................................................................................... 12

1.2.3.1 LCD Display ............................................................................................................... 12

1.2.3.2 Button Matrix .............................................................................................................. 13

1.2.3.3 Line Controller............................................................................................................14

1.2.4 CD Loader Subsystem ........................................................................................................15

1.2.5 Power Subsystem................................................................................................................16

1.2.6 Debug Interface ...................................................................................................................17

1.2.7 Jumpers and Switches ........................................................................................................18

Chapter 2 User Menu Selections............................................................... 19

2.1 Overview ....................................................................................................................................... 19

2.2 User Interface................................................................................................................................ 19

2.2.1 Start-up................................................................................................................................ 20

2.2.1.1 Default Start-up Mode ................................................................................................ 22

2.2.2 Display................................................................................................................................. 24

2.2.3 Main Menu ........................................................................................................................... 28

2.2.3.1 Menu Options.............................................................................................................31

2.2.3.1.1 Power-off Mode ................................................................................................ 32

2.2.3.1.2 Normal Mode ....................................................................................................32

2.2.3.1.3 Navigator Mode ................................................................................................ 34

2.2.3.1.4 Playlist Selection Mode ....................................................................................35

2.2.3.1.5 Playlist Creation Mode...................................................................................... 36

2.2.3.1.6 Menu Mode, in a Menu List .............................................................................. 38

2.2.3.1.7 Menu Mode, in a Setting Screen ......................................................................39

CRD7410-BA User’s Guide - DS622UMC2 3
Copyright 2004 Cirrus Logic

List of Figures

Figure 1-1. Main Board, Top View ....................................................................................... 8

Figure 1-2. Main Board, Bottom View .................................................................................. 9

Figure 1-3. Detail Views of the Decoder Subsytem ............................................................ 10

Figure 1-4. Detail View of the Audio Subsystem ................................................................. 11

Figure 1-5. Detail View of the LCD ..................................................................................... 12

Figure 1-6. Detail View of the Button Matrix ...................................................................... 13

Figure 1-7. Detail View of the Line Controller .................................................................... 14

Figure 1-8. Detail Views of the CD Loader Subsystem ...................................................... 15

Figure 1-9. Detail Views of the Power Subsystem .............................................................. 16

Figure 1-10. Detail View of the Debug Interface ................................................................. 17

Figure 2-1. Power-on Screen .............................................................................................. 21

Figure 2-2. Checking for Update Files Screen .................................................................... 21

Figure 2-3. Loading Updated Firmware Screen .................................................................. 21

Figure 2-4. Bad Disc Screen ............................................................................................. 21

Figure 2-5. Normal Operation Screen ................................................................................. 22

Figure 2-6. Display Screen Format - Default Mode ............................................................ 22

Figure 2-7. Display Screen Format - Default Mode ............................................................ 24

Figure 2-8. Pause Screen - CDDA ...................................................................................... 24

Figure 2-9. Pause Screen - MP3 ........................................................................................ 24

Figure 2-10. Screen - VCD ................................................................................................. 25

Figure 2-11. Volume Changing Screen ............................................................................... 25

Figure 2-12. Equalizer Setting Screen ................................................................................ 26

Figure 2-13. Navigator Mode Screen .................................................................................. 26

Figure 2-14. Playlist Selection Mode Screen .................................................................... 27

Figure 2-15. Playlist Loading Screen .................................................................................. 27

Figure 2-16. Playlist Creation Mode Screen ..................................................................... 27

Figure 2-17. Main Menu Screen ......................................................................................... 28

Figure 2-18. Electronic Shock Protection (ESP) Submenu Screen .................................. 28

Figure 2-19. Lyrics Submenu Screen ............................................................................... 29

Figure 2-20. Resume Submenu Screen ........................................................................... 29

Figure 2-21. Scrolling Submenu Screen ........................................................................... 29

Figure 2-22. Shut Off Time Submenu Screen ..................................................................... 30

Figure 2-23. Sleep Timer Submenu Screen ....................................................................... 30

Figure 2-24. 3D Effect Submenu Screen .......................................................................... 30

Figure 2-25. Order Tracks Submenu Screen .................................................................... 31

Figure 2-26. Firmware Version Screen ............................................................................ 31

CRD7410-BA User’s Guide - DS622UMC2 4
Copyright 2004 Cirrus Logic

List of Tables

Table 1-1: Button Matrix.......................................................................................................13

Table 1-2: Line Controller .................................................................................................. 14

CRD7410-BA User’s Guide - DS622UMC2 5
Copyright 2004 Cirrus Logic

This page intentionally blank.

6 CRD7410-BA User’s Guide - DS622UMC2

Copyright 2004 Cirrus Logic

Chapter 1

1.1 Overview

1CRD7410-BA Board Architecture

This document describes a reference design platform for the Cirrus Logic
CS7410, known as the CRD7410-BA. It is an evaluation platform for a mid­range portable CD player. The CRD7410-BA platform provides a low-cost yet
complete solution for today’s popular digital music formats (CDDA, MP3,
WMA, VCD, AVCD, and SVCD). The platform also supports today’s popular
music plylist formats such as MP3, M4U, PLS, B4S, and RMP. The system’s
small size, light weight, and low power consumption allow designers to
integrate powerful features into an inexpensive portable device. The design is
also easily adapted to small bookshelf systems.

All components necessary for a portable CDDA/MP3/WMA/VCD/AVCD/SVCD
application, including a 3-line LCD display, are incorporated into a single PCB.
Debug capability is provided adjacent to the main circuitry. In a final design,
the I2C debug and Romulator ports would be eliminated, leaving only the
circuitry required for the application.

In addition, the LCD display and control buttons are laid out in a manner which
allows that circuitry to be moved easily to a separate front panel PCB. The
CRD7410-BA also supports a wired remote controller. Refer to Figure 1-1.

1

Cirrus Logic provides the system as a complete solution. Schematics and
Gerber data files for the PCB are available.

1.1.1 Main Subsystems

The CRD7410-BA has seven main subsystems. They are:

• Decoder

• Audio

• User Interface Subsystem

• CD Loader

• Power

• Debug Interface

• Jumpers and Switches

CRD7410-BA User’s Guide - DS622UMC2 7
Copyright 2004 Cirrus Logic

1

CRD7410-BA Board Architecture

Figure 1-1. Main Board, Top View

8 CRD7410-BA User’s Guide - DS622UMC2

Copyright 2004 Cirrus Logic

Figure 1-2. Main Board, Bottom View

CRD7410-BA Board Architecture

1

CRD7410-BA User’s Guide - DS622UMC2 9
Copyright 2004 Cirrus Logic

CRD7410-BA Board Architecture

1.2 Main Subsystems

1

1.2.1 Decoder Subsystem

This system uses the Cirrus Logic CS7410 for main control and audio decode.
(See U6 in Figure 1-3, below.)

A Flash/ROM is used for application code. (See U5 in Figure 1-3, below.)

An SDRAM is provided for Electronic Shock Protection (ESP). (See U4 in
Figure 1-3, below.)

Figure 1-3. Detail Views of the Decoder Subsytem

10 CRD7410-BA User’s Guide - DS622UMC2

Copyright 2004 Cirrus Logic

1.2.2 Audio Subsystem

CRD7410-BA Board Architecture

1.2.2.1 Internal DAC

An integrated Sigma-Delta based DAC (Digital-to-Analog-Converter) allows
the designer to build a low cost DAC with a simple RC integration circuit.

1.2.2.2 External DAC

This system also provides audio data in serial format, to support the use of an
external DAC. Shown in Figure 1-4, below, U12 is a CS43L43.

1.2.2.3 Subsystem Design Details

Figure 1-4 shows the details of the implementation of this subsystem design.
This list below defines the semiconductor devices and connectors used in this
subsystem, and the function of each.

• U9 - Dual D-Type positive-edge triggered Flip-Flop - 74AC74

• U10 - Headphone Amplifier - PT2308

• U12 - Audio DAC - CS43L43

• J11 - Headphone Out and Line Controller Output Jack

• J13_A - Line Out Jack

Figure 1-4. Detail View of the Audio Subsystem

1

CRD7410-BA User’s Guide - DS622UMC2 11
Copyright 2004 Cirrus Logic

1

CRD7410-BA Board Architecture

1.2.3 User Interface Subsystem

The User Interface Subsystem has three sections: the LCD (Liquid Crystal
Display), the Button Matrix and the Line Controller. (See Figure 1-5, Figure 1-6
and Figure 1-7, below, for details.)

1.2.3.1 LCD Display

Figure 1-5 shows a close-up view of the LCD, which is part of the User
Interface Subsystem.

The LCD display (reference designator - DSP1) is a 24 x 60 pixel display. For
a dot matrix character size of 8 x 5, this gives 12 characters per line, by 3 lines
per display.

Figure 1-5. Detail View of the LCD

12 CRD7410-BA User’s Guide - DS622UMC2

Copyright 2004 Cirrus Logic