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8 document revisions, Contacting cirrus logic support – Cirrus Logic AN333 User Manual

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AN333

8 Document Revisions

8 Document Revisions

Revision

Date

Changes

RC12

February, 2012

Updated description of 0x0045 and 0x0046 in

Table 4-1

. Updated variable and description of 0x005D–0x0060

in

Table 4-1

.

RC13

July, 2012

Marked 0x003B and 0x0074–0x0077 as runtime configurable, listed 0x0055 and 0x0078 as read only, and
updated description of 0x0078 in

Table 4-1

. Added

Fig. 4-2

to show autodetect/autoswitch controls. Updated

footnotes in

Table 4-3

.

RC14

August, 2012

Added Index 0x007E to

Table 4-1

.

RC15

April, 2013

Added Index 0x000A–0x000C to

Table 4-1

.

RC16

April, 2014

Removed IO config 0x8000 from

Table 4-3

and

Table 4-5

. Updated config for 0x0020 in

Table 4-3

. Updated

variable names and descriptions of Index 0x0018, 0x0019, 0x0020, and 0x0021 in

Table 5-1

. Added † to all

variables in

Table 5-1

.

Contacting Cirrus Logic Support

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 acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information,
including use of this information as the basis for manufacture or 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 PRODUCTS
SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS.
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NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PUR-
POSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER’S CUSTOMER USES OR PERMITS
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FROM OR ARISE IN CONNECTION WITH THESE USES.

Cirrus Logic, Cirrus, the Cirrus Logic logo designs, Cirrus Original Multichannel Surround 2, and DSP Composer 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.

Dolby, Dolby Digital, Dolby Headphone, Pro Logic, double-D symbols, Audistry are registered trademarks of Dolby Laboratories, Inc. Dolby Virtual Surround is a trademark
of Dolby Laboratories, Inc. Supply of an implementation of Dolby Technology does not convey a license nor imply a right under any patent, or any other industrial or Intellectual
Property Right of Dolby Laboratories, to use the Implementation in any finished end-user or ready-to-use final product. It is hereby notified that a license for such use is
required from Dolby Laboratories.

Cinema Re-EQ is a trademark of Lucasfilm Ltd.

SRS, Circle Surround, SRS TruSurround XT, TruSurround HD4 technologies are incorporated under license from SRS Labs, Inc. The SRS, Circle Surround, SRS TruSurround
XT, TruSurround HD4 technology/solution rights incorporated in Cirrus Logic’s CS470xx part are owned by SRS Labs, a U.S. Corporation and licensed to Cirrus Logic, Inc.
Purchaser of the CS470xx part must sign a license for use of the chip and display of the SRS Labs trademarks. Any products incorporating the CS470xx part must be sent to
SRS Labs for review. SRS, Circle Surround, SRS TruSurround XT, TruSurround HD4 technologies are protected under US and foreign patents issued and/or pending. SRS,
Circle Surround, SRS TruSurround XT, WOW HD, TruSurround HD4, and (O) symbol are trademarks of SRS Labs, Inc. in the United States and selected foreign countries.
Neither the purchase of the CS470xx part, nor the corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings made with any
SRS technology/solution. SRS Labs requires all set makers to comply with all rules and regulations as outlined in the SRS Trademark Usage Manual.