Pin Configuration Guidelines for High Definition Audio Devices
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 Pin Configuration Guidelines for High Definition Audio Devices
June 17, 2013 Version 1.2 Abstract This document provides information about Intel High Definition Audio (HD Audio) devices and drivers for the Microsoft® Windows® family of operating systems. It provides guidelines for system integrators (OEMs and ODMs) and BIOS developers for programming default values for the Pin Configuration registers in an HD Audio codec. An HD Audio codec that follows the Microsoft Universal Audio Architecture (UAA) hardware guidelines can rely entirely on the system-supplied driver support in Windows. A primary component of this driver support is the UAA HD Audio class driver, which uses the data in the Configuration Default registers to identify the individual audio devices in the codec and to make them available to the operating system and applications. This information applies for the following operating systems:
Future versions of this preview information will be provided in the Windows Driver Kit. The current version of this paper is maintained on the WHDC Web site at:
References and resources discussed here are listed at the end of this paper. Document History
Contents Introduction 4 UAA HD Audio Class Driver Versions 6 Pin Configuration Register 7 Port Connectivity 7 Location 8 Default Device 8 Connection Type 8 Color 8
Miscellaneous 9 Default Association 10 Sequence 10 Pin Widget Default Device Types 11 Line Out, Speaker, and HP Out Default Device Types 11 SPDIF Out Default Device Type 14 Mic In Default Device Type 15 Line In Default Device Type 16 AUX Default Device Type 17 SPDIF In Device Type 18 Speaker Configurations 19 Hardware Resource Constraints 24 Supported Devices 25 Rendering Devices 25 Capture Devices 26 Device Identification Algorithm 29 Line Connectors versus Speakers 29 General Control Flow 30 Single-Pin Rendering Device 32 Multi-Pin Rendering Device 33 Single-Pin Capture Device 35 Multi-Pin Capture Device 36 Static and Dynamic Devices 36 Dynamic Multi-Pin Rendering Devices 37 Dynamic Multi-Pin Capture Devices 38 Pin Configuration Examples 39 Example 1 40 Example 2 41 Example 3 41 Conclusion 42 Call to Action 42 References 43 Disclaimer This is a preliminary document and may be changed substantially prior to final commercial release of the software described herein. The information contained in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication. This white paper is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS DOCUMENT. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may be reproduced, stored in or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of Microsoft Corporation. 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