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Audio Codec ’97 Audio Codec ’97 Revision 2.1 May 22, 1998 Intel Corporation AC ‘97 Component Specification Revision 2.1 2 May 22, 1998 AC ‘97 Component Specification Revision 2.1 Copyright © 1998 Intel Corporation. All rights reserved. Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 Intel Corporation assumes no responsibility for errors or omissions in the guide. Nor does Intel make any commitment to update the information contained herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted herein, and Intel disclaims all liability, including liability for infringement of any proprietary rights, relating to implementation of information in this document. Intel does not warrant or represent that such implementation(s) will not infringe such rights. Intel further disclaims any express or implied warranty relating to the sale and/or use of Intel products, including liability or warranties relating to fitness for a particular purpose or merchantability. * Other product and corporate names may be trademarks of other companies and are used only for explanation and to the owners’ benefit, without intent to infringe. 3 May 22, 1998 AC ‘97 Component Specification Revision 2.1 NOTICES THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. INTEL DISCLAIMS ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS, RELATING TO IMPLEMENTATION OF INFORMATION IN THIS SPECIFICATION. INTEL DOES NOT WARRANT OR REPRESENT THAT SUCH IMPLEMENTATION(S) WILL NOT INFRINGE SUCH RIGHTS. LICENSING A license is hereby granted to copy and reproduce this specification for internal use only. No other license, express or implied, by estoppel or otherwise, to any other intellectual property rights is granted herein. A royalty-free, limited license is available to anyone who wishes to make use of this Audio Codec '97 specification. Please contact Intel at [email protected] or the address below for specific Audio Codec '97 licensing terms. Intel Corporation 2111 N.E 25th Avenue Hillsboro, Or 97124 Attention: Russ Hampsten MS JF2-53 Copyright ã 1998, Intel Corporation. All Rights Reserved. 4 May 22, 1998 AC ‘97 Component Specification Revision 2.1 TABLE OF CONTENTS 1. INTRODUCTION ...................................................................................................................................... 12 1.1 FEATURE LIST ....................................................................................................................................... 12 1.2 AUDIO CODEC ‘97 ARCHITECTURAL OVERVIEW ..................................................................................... 13 1.3 INTEGRATING AC ‘97 INTO THE SYSTEM ................................................................................................ 14 1.4 SOFTWARE DRIVER SUPPORT AND AC ’97 CONTROLLER / AC ‘97 INTEROPERABILITY............................. 15 2. PACKAGING............................................................................................................................................. 17 2.1 48-PIN QFP PACKAGE ............................................................................................................................ 18 2.2 64-PIN QFP PACKAGE ............................................................................................................................ 20 3. PIN/SIGNAL DESCRIPTIONS ................................................................................................................. 22 3.1 DIGITAL I/O .......................................................................................................................................... 22 3.2 ANALOG I/O.......................................................................................................................................... 23 3.3 FILTER/REFERENCES.............................................................................................................................. 24 3.4 POWER AND GROUND SIGNALS .............................................................................................................. 25 4. SYSTEM USAGE....................................................................................................................................... 26 4.1 AC ‘97 CONNECTION TO THE DIGITAL AC ’97 CONTROLLER .................................................................. 26 4.2 CLOCKING............................................................................................................................................. 27 4.3 RESETTING AC ‘97................................................................................................................................ 27 5. DIGITAL INTERFACE............................................................................................................................. 28 5.1 AC-LINK DIGITAL SERIAL INTERFACE PROTOCOL ................................................................................... 28 5.1.1 AC-link Audio Output Frame (SDATA_OUT)................................................................................... 29 5.1.1.1 Slot 0: TAG .............................................................................................................................................. 29 5.1.1.2 Slot 1: Command Address Port................................................................................................................. 30 5.1.1.3 Slot 2: Command Data Port ...................................................................................................................... 30 5.1.1.4 Slot 3: PCM Playback Left Channel.......................................................................................................... 31 5.1.1.5 Slot 4: PCM Playback Right Channel........................................................................................................ 31 5.1.1.6 Slot 5: Optional Modem Line 1 DAC........................................................................................................ 31 5.1.1.7 Slots 6-9: Optional PCM Center, L Surround, R Surround, and LFE DACs ................................................ 31 5.1.1.8 Slot 10: Optional Modem Line 2 DAC ...................................................................................................... 31 5.1.1.9 Slot 11: Optional Modem Headset DAC.................................................................................................... 31 5.1.1.10 Slot 12: Optional Modem GPIO control .................................................................................................... 31 5.1.2 AC-link Audio Input Frame (SDATA_IN)......................................................................................... 31 5.1.2.1 Slot 0: TAG .............................................................................................................................................. 31 5.1.2.2 Slot 1: Status Address Port ....................................................................................................................... 32 5.1.2.3 Slot 2: Status Data Port............................................................................................................................. 33 5.1.2.4 Slot 3: PCM Record Left Channel............................................................................................................. 33 5.1.2.5 Slot 4: PCM Record Right Channel........................................................................................................... 33 5.1.2.6 Slot 5: Optional Modem Line 1 ADC........................................................................................................ 33 5.1.2.7 Slot 6: Optional Dedicated Microphone Record Data................................................................................. 33 5.1.2.8 Slots 7-9: Reserved .................................................................................................................................. 33 5.1.2.9 Slot 10: Optional Modem Line 2 ADC ...................................................................................................... 34 5.1.2.10 Slot 11: Optional Modem Headset ADC.................................................................................................... 34 5.1.2.11 Slot 12: Optional Modem GPIO status ...................................................................................................... 34 5.2 AC-LINK LOW POWER MODE ................................................................................................................. 34 5.2.1 Waking up the AC-link ...................................................................................................................... 34 5.2.1.1 Cold AC ‘97 Reset .................................................................................................................................... 35 5.2.1.2 Warm AC ‘97 Reset .................................................................................................................................. 35 6. AC ‘97 MIXER........................................................................................................................................... 36 6.1 MIXER OUTPUT...................................................................................................................................... 37 5 May 22, 1998 AC ‘97 Component
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