DATASHEET
10-CHANNEL HIGH DEFINITION AUDIO CODEC STAC9271/9274
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 1 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Description
The STAC9271/74 areTheater Quality 10-channel audio
CODECs that enable systems with 7.1 audio playing
simultaneously with VoIP or another stereo audio stream.
IDT's proprietary ΣΔ technology provides high fidelity with
an estimated DAC SNR up to 105dB. Up to four digital
microphones are supported enabling high quality voice
input for increased usability of voice applications.
Features
•High performance HD Audio CODEC provides
Theater Quality Audio
•High performance ΣΔ technology
•105dB DAC SNR
•90dB ADC SNR
•Five Stereo DACs and three stereo ADCs
•Supports 7.1 Audio with simultaneous Real Time
Communication (RTC) channel such as VoIP or separate
stereo audio stream
•24-bit resolution with up to 192 KHz sample rates
•Digital Microphone Interface (STAC9274)
•Direct interface up to four Digital Microphones
•Analog Stereo Microphone
•Microphone Boost 0, 10, 20, 30, 40dB
•Six adjustable Vref outputs for microphone bias
•Integrated Headphone Amps (3)
•S/PDIF In and Out
•ADAT® Optical “Lightpipe” Output
Support (STAC9274)
•Volume Up/Down Control
•Jack Insertion Detect and Impedance Sensing
supports Jack Retasking and Universal Jacks
•Digital PC Beep to all outputs
•+5 V analog power supply options
•Environmental 48-pin LQFP package
Software Support
•SKPI (Kernel Processing Interface)
•Enables plug-ins that can operate globally on all audio
streams of the system
•12 band parametric equalizer SKPI plug-in
•Constant, system-level effects tuned to optimize a
particular platform can be combined with user-mode
“presets” tailored for specific acoustical environments
and applications
•System-level effects automatically disabled when
external connections made
•Dynamics Processing SKPI plug-in
•Enables improved voice articulation
•Compressor/limiter allows higher average noise level
without resonances
•Dolby PC Entertainment Experience Logo Program
•Dolby Master StudioTM (STAC9274D)
•Dolby Home TheaterTM (STAC9271D, STAC9274D)
•Dolby Sound RoomTM(STAC9271D, STAC9274D)
•Dolby Technologies
•Dolby HeadphoneTM, Dolby Virtual SpeakerTM
•Dolby ProLogic IITM, Dolby ProLogic IIxTM
•Dolby Digital LiveTM
•Intel Audio StudioTM from Sonic Focus
•Maxx PlayerTM from Waves
•Microphone Beam Forming, Acoustic Echo
Cancellation, & Noise Suppression from
KnowlesTM
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 2 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table of Contents
1. DESCRIPTION ......................................................................................................................... 14
2. CHARACTERISTICS ...............................................................................................................15
2.1. Audio Fidelity ................................................................................................................................... 15
2.2. Electrical Specifications ................................................................................................................... 15
2.2.1. Absolute Maximum Ratings ............................................................................................... 15
2.2.2. Recommended Operation Conditions ............................................................................... 15
2.3. STAC9271/74 5 V, 4.5 V, 4.0 V and 3.3 V Analog Performance Characteristics ............................ 17
3. DETAILED DESCRIPTION ...................................................................................................... 21
3.1. Universal JacksTM .......................................................................................................................... 21
3.1.1. Audio Jack Presence Detect ............................................................................................. 21
3.2. SPDIF Input ..................................................................................................................................... 22
3.3. SPDIF Output .................................................................................................................................. 23
3.4. ADAT® Output (STAC9274) ............................................................................................................ 23
3.5. Digital Microphone Support (STAC9274) ........................................................................................ 23
3.6. Analog PC-Beep .............................................................................................................................. 27
3.7. Headphone Drivers (Restrictions) ................................................................................................... 27
3.8. Device IDs ....................................................................................................................................... 27
4. FUNCTIONAL BLOCK DIAGRAMS ........................................................................................ 28
4.1. STAC9274 ....................................................................................................................................... 28
4.2. STAC9271 ....................................................................................................................................... 29
5. WIDGET DIAGRAM .................................................................................................................30
5.1. Pin Configuration Default Register Settings .................................................................................... 31
6. WIDGET INFORMATION ....................................................................................................... 32
6.1. Root Node (NID = 0x00) .................................................................................................................. 34
6.1.1. Root ID .............................................................................................................................. 34
6.1.2. Root RevID ........................................................................................................................ 34
6.1.3. Root NodeInfo ................................................................................................................... 35
6.2. AFG Node (NID = 0x01) .................................................................................................................. 35
6.2.1. AFG Reset ......................................................................................................................... 35
6.2.2. AFG NodeInfo .................................................................................................................... 36
6.2.3. AFG Type .......................................................................................................................... 36
6.2.4. AFG Type .......................................................................................................................... 36
6.2.5. AFG PCMCap .................................................................................................................... 37
6.2.6. AFG Stream ....................................................................................................................... 38
6.2.7. AFG InAmpCap ................................................................................................................. 39
6.2.8. AFG SupPwrState ............................................................................................................. 39
6.2.9. AFG GPIOCnt .................................................................................................................... 40
6.2.10. AFG OutAmpCap ............................................................................................................ 41
6.2.11. AFG PwrState .................................................................................................................. 41
6.2.12. AFG UnsolResp ............................................................................................................... 42
6.2.13. AFG GPIO ....................................................................................................................... 42
6.2.14. AFG GPIOEn ................................................................................................................... 43
6.2.15. AFG GPIODir ................................................................................................................... 44
6.2.16. AFG GPIOWakeEn .......................................................................................................... 45
6.2.17. AFG GPIOUnsol .............................................................................................................. 46
6.2.18. AFG GPIOSticky .............................................................................................................. 47
6.2.19. AFG SubID ...................................................................................................................... 48
6.2.20. AFG TCKT ....................................................................................................................... 49
6.2.21. AFG Sply ......................................................................................................................... 49
6.2.22. AFG DACMode ................................................................................................................ 50
6.2.23. AFG GPIOPlrty ................................................................................................................ 51
6.2.24. AFG GPIODrive ............................................................................................................... 52
6.2.25. AFG DMic ........................................................................................................................ 53
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 3 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.3. DAC0 Node (NID = 0x02) ................................................................................................................ 54
6.3.1. DAC0 Cnvtr ....................................................................................................................... 54
6.3.2. DAC0 OutAmpRight .......................................................................................................... 55
6.3.3. DAC0 OutAmpLeft ............................................................................................................. 55
6.3.4. DAC0 WCap ...................................................................................................................... 56
6.3.5. DAC0 PwrState ................................................................................................................. 57
6.3.6. DAC0 CnvtrID .................................................................................................................... 57
6.3.7. DAC0 LR ........................................................................................................................... 58
6.4. DAC1 Node (NID = 0x03) ................................................................................................................ 58
6.4.1. DAC1 Cnvtr ....................................................................................................................... 58
6.4.2. DAC1 OutAmpRight .......................................................................................................... 60
6.4.3. DAC1 OutAmpLeft ............................................................................................................. 60
6.4.4. DAC1 WCap ...................................................................................................................... 60
6.4.5. DAC1 PwrState ................................................................................................................. 61
6.4.6. DAC1 CnvtrID .................................................................................................................... 62
6.4.7. DAC1 LR ........................................................................................................................... 63
6.5. DAC2 Node (NID = 0x04) ................................................................................................................ 63
6.5.1. DAC2 Cnvtr ....................................................................................................................... 63
6.5.2. DAC2 OutAmpRight .......................................................................................................... 64
6.5.3. DAC2 OutAmpLeft ............................................................................................................. 65
6.5.4. DAC2 WCap ...................................................................................................................... 65
6.5.5. DAC2 PwrState ................................................................................................................. 66
6.5.6. DAC2 CnvtrID .................................................................................................................... 67
6.5.7. DAC2 LR ........................................................................................................................... 67
6.6. DAC3 Node (NID = 0x05) ................................................................................................................ 68
6.6.1. DAC3 Cnvtr ....................................................................................................................... 68
6.6.2. DAC3 OutAmpRight .......................................................................................................... 69
6.6.3. DAC3 OutAmpLeft ............................................................................................................. 70
6.6.4. DAC3 WCap ...................................................................................................................... 70
6.6.5. DAC3 PwrState ................................................................................................................. 71
6.6.6. DAC3 CnvtrID .................................................................................................................... 72
6.6.7. DAC3 LR ........................................................................................................................... 72
6.7. DAC4 Node (NID = 0x06) ................................................................................................................ 73
6.7.1. DAC4 Cnvtr ....................................................................................................................... 73
6.7.2. DAC4 OutAmpRight .......................................................................................................... 74
6.7.3. DAC4 OutAmpLeft ............................................................................................................. 74
6.7.4. DAC4 WCap ...................................................................................................................... 75
6.7.5. DAC4 PwrState ................................................................................................................. 76
6.7.6. DAC4 CnvtrID .................................................................................................................... 76
6.7.7. DAC4 LR ........................................................................................................................... 77
6.8. ADC0 Node (NID = 0x07) ................................................................................................................ 77
6.8.1. ADC0 Cnvtr ....................................................................................................................... 77
6.8.2. ADC0 WCap ...................................................................................................................... 79
6.8.3. ADC0 ConLst ..................................................................................................................... 80
6.8.4. ADC0 ConLstEntry ............................................................................................................ 80
6.8.5. ADC0 ProcState ................................................................................................................ 80
6.8.6. ADC0 PwrState ................................................................................................................. 81
6.8.7. ADC0 CnvtrID .................................................................................................................... 82
6.9. ADC1 Node (NID = 0x08) ................................................................................................................ 82
6.9.1. ADC1 Cnvtr ....................................................................................................................... 82
6.9.2. ADC1 WCap ...................................................................................................................... 83
6.9.3. ADC1 ConLst ..................................................................................................................... 84
6.9.4. ADC1 ConLstEntry ............................................................................................................ 85
6.9.5. ADC1 ProcState ................................................................................................................ 85
6.9.6. ADC1 PwrState ................................................................................................................. 86
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 4 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.9.7. ADC1 CnvtrID .................................................................................................................... 87
6.10. ADC2 Node (NID = 0x09) .............................................................................................................. 87
6.10.1. ADC2 Cnvtr ..................................................................................................................... 87
6.10.2. ADC2 WCap .................................................................................................................... 88
6.10.3. ADC2 ConLst ................................................................................................................... 89
6.10.4. ADC2 ConLstEntry .......................................................................................................... 90
6.10.5. ADC2 ProcState .............................................................................................................. 90
6.10.6. ADC2 PwrState ............................................................................................................... 91
6.10.7. ADC2 CnvtrID .................................................................................................................. 92
6.11. SPDIFOut Node (NID = 0x1E) ....................................................................................................... 92
6.11.1. SPDIFOut Cnvtr ............................................................................................................... 92
6.11.2. SPDIFOut WCap ............................................................................................................. 93
6.11.3. SPDIFOut PCM ............................................................................................................... 94
6.11.4. SPDIFOut Stream ............................................................................................................ 96
6.11.5. SPDIFOut CnvtrID ........................................................................................................... 96
6.11.6. SPDIFOut DigCnvtr ......................................................................................................... 97
6.12. SPDIFIn Node (NID = 0x20) .......................................................................................................... 97
6.12.1. SPDIFIn Cnvtr ................................................................................................................. 97
6.12.2. SPDIFIn WCap ................................................................................................................ 99
6.12.3. SPDIFIn PCMCap .........................................................................................................100
6.12.4. SPDIFIn Stream ............................................................................................................ 101
6.12.5. SPDIFIn ConLst ............................................................................................................. 101
6.12.6. SPDIFIn ConLstEntry ....................................................................................................101
6.12.7. SPDIFIn CnvtrID ............................................................................................................ 102
6.12.8. SPDIFIn DigCnvtr .......................................................................................................... 102
6.12.9. SPDIFIn VCSR0 ............................................................................................................ 103
6.13. PortA Node (NID = 0x0A) ............................................................................................................ 105
6.13.1. PortA WCap ................................................................................................................... 105
6.13.2. PortA PinCap ................................................................................................................. 106
6.13.3. PortA ConLst ................................................................................................................. 107
6.13.4. PortA ConLstEntry ......................................................................................................... 108
6.13.5. PortA ConSelectCtrl ...................................................................................................... 108
6.13.6. PortA PinWCntrl ............................................................................................................ 109
6.13.7. PortA UnsolResp ........................................................................................................... 109
6.13.8. PortA ChSense .............................................................................................................. 110
6.13.9. PortA ConfigDefault ....................................................................................................... 111
6.14. PortB Node (NID = 0x0B) ............................................................................................................ 111
6.14.1. PortB WCap ................................................................................................................... 111
6.14.2. PortB PinCap ................................................................................................................. 112
6.14.3. PortB ConLst ................................................................................................................. 113
6.14.4. PortB ConLstEntry ......................................................................................................... 114
6.14.5. PortB ConSelectCtrl ...................................................................................................... 114
6.14.6. PortB PinWCntrl ............................................................................................................ 115
6.14.7. PortB UnsolResp ........................................................................................................... 115
6.14.8. PortB ChSense .............................................................................................................. 116
6.14.9. PortB ConfigDefault ....................................................................................................... 117
6.15. PortC Node (NID = 0x0C) ............................................................................................................ 117
6.15.1. PortC WCap .................................................................................................................. 117
6.15.2. PortC PinCap ................................................................................................................. 118
6.15.3. PortC ConLst ................................................................................................................. 119
6.15.4. PortC ConLstEntry ......................................................................................................... 120
6.15.5. PortC PinWCntrl ............................................................................................................ 120
6.15.6. PortC UnsolResp ........................................................................................................... 121
6.15.7. PortC ChSense .............................................................................................................. 121
6.15.8. PortC ConfigDefault ....................................................................................................... 122
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 5 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.16. PortD Node (NID = 0x0D) ............................................................................................................ 123
6.16.1. PortD WCap .................................................................................................................. 123
6.16.2. PortD PinCap ................................................................................................................. 124
6.16.3. PortD ConLst ................................................................................................................. 124
6.16.4. PortD ConLstEntry ......................................................................................................... 125
6.16.5. PortD PinWCntrl ............................................................................................................ 125
6.16.6. PortD UnsolResp ........................................................................................................... 126
6.16.7. PortD ChSense .............................................................................................................. 127
6.16.8. PortD ConfigDefault ....................................................................................................... 127
6.17. PortE Node (NID = 0x0E) ............................................................................................................ 128
6.17.1. PortE WCap ................................................................................................................... 128
6.17.2. PortE PinCap ................................................................................................................. 129
6.17.3. PortE ConLst ................................................................................................................. 130
6.17.4. PortE ConLstEntry ......................................................................................................... 130
6.17.5. PortE PinWCntrl ............................................................................................................ 131
6.17.6. PortE UnsolResp ........................................................................................................... 131
6.17.7. PortE ChSense .............................................................................................................. 132
6.17.8. PortE ConfigDefault ....................................................................................................... 132
6.18. PortF Node (NID = 0x0F) ............................................................................................................ 133
6.18.1. PortF WCap ................................................................................................................... 133
6.18.2. PortF PinCap ................................................................................................................. 134
6.18.3. PortF ConLst ................................................................................................................. 135
6.18.4. PortF ConLstEntry ......................................................................................................... 136
6.18.5. PortF PinWCntrl ............................................................................................................. 136
6.18.6. PortF UnsolResp ........................................................................................................... 137
6.18.7. PortF ChSense .............................................................................................................. 137
6.18.8. PortF ConfigDefault ....................................................................................................... 138
6.19. PortG Node (NID = 0x10) ............................................................................................................ 139
6.19.1. PortG WCap .................................................................................................................. 139
6.19.2. PortG PinCap ................................................................................................................ 140
6.19.3. PortG ConLst ................................................................................................................. 140
6.19.4. PortG ConLstEntry ........................................................................................................ 141
6.19.5. PortG PinWCntrl ............................................................................................................ 141
6.19.6. PortG UnsolResp ........................................................................................................... 142
6.19.7. PortG ChSense ............................................................................................................. 142
6.19.8. PortG ConfigDefault ...................................................................................................... 143
6.20. PortH Node (NID = 0x11) ............................................................................................................ 144
6.20.1. PortH WCap .................................................................................................................. 144
6.20.2. PortH PinCap ................................................................................................................. 145
6.20.3. PortH ConLst ................................................................................................................. 145
6.20.4. PortH ConLstEntry ......................................................................................................... 146
6.20.5. PortH PinWCntrl ............................................................................................................ 146
6.20.6. PortH UnsolResp ........................................................................................................... 147
6.20.7. PortH ChSense .............................................................................................................. 147
6.20.8. PortH ConfigDefault ....................................................................................................... 148
6.21. DMic0 Node (NID = 0x13) ........................................................................................................... 149
6.21.1. DMic0 WCap ................................................................................................................. 149
6.21.2. DMic0 PinCap ................................................................................................................ 150
6.21.3. DMic0 PinWCntrl ........................................................................................................... 151
6.21.4. DMic0 ConfigDefault ...................................................................................................... 151
6.22. DMic1 Node (NID = 0x14) ........................................................................................................... 152
6.22.1. DMic1 WCap ................................................................................................................. 152
6.22.2. DMic1 PinCap ................................................................................................................ 153
6.22.3. DMic1 PinWCntrl ........................................................................................................... 154
6.22.4. DMic1 ConfigDefault ...................................................................................................... 154
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 6 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.23. DigOut0 Node (NID = 0x21) ........................................................................................................ 155
6.23.1. DigOut0 WCap .............................................................................................................. 155
6.23.2. DigOut0 PinCap ............................................................................................................. 156
6.23.3. DigOut0 ConLst ............................................................................................................. 157
6.23.4. DigOut0 ConLstEntry0 ...................................................................................................157
6.23.5. DigOut0 ConLstEntry4 ...................................................................................................158
6.23.6. DigOut0 ConSelectCtrl ..................................................................................................158
6.23.7. DigOut0 PinWCntrl ........................................................................................................ 158
6.23.8. DigOut0 ConfigDefault ................................................................................................... 159
6.24. DigIn Node (NID = 0x22) ............................................................................................................. 160
6.24.1. DigIn WCap ................................................................................................................... 160
6.24.2. DigIn PinCap ................................................................................................................. 161
6.24.3. DigIn PwrState ............................................................................................................... 161
6.24.4. DigIn PinWCntrl ............................................................................................................. 162
6.24.5. DigIn UnsolResp ............................................................................................................ 162
6.24.6. DigIn ChSense .............................................................................................................. 163
6.24.7. DigIn EAPD ................................................................................................................... 164
6.24.8. DigIn ConfigDefault ....................................................................................................... 164
6.25. InPort0Mux Node (NID = 0x15) ................................................................................................... 165
6.25.1. InPort0Mux WCap ......................................................................................................... 165
6.25.2. InPort0Mux ConLst ........................................................................................................ 166
6.25.3. InPort0Mux OutAmpCap ............................................................................................... 166
6.25.4. InPort0Mux OutAmpRight .............................................................................................. 167
6.25.5. InPort0Mux OutAmpLeft ................................................................................................ 167
6.25.6. InPort0Mux ConSelectCtrl ............................................................................................. 168
6.25.7. InPort0Mux ConLstEntry0 ............................................................................................. 168
6.25.8. InPort0Mux ConLstEntry4 ............................................................................................. 169
6.25.9. InPort0Mux ConLstEntry8 ............................................................................................. 169
6.26. InPort1Mux Node (NID = 0x16) ................................................................................................... 170
6.26.1. InPort1Mux WCap ......................................................................................................... 170
6.26.2. InPort1Mux ConLst ........................................................................................................ 171
6.26.3. InPort1Mux OutAmpCap ............................................................................................... 171
6.26.4. InPort1Mux OutAmpRight .............................................................................................. 172
6.26.5. InPort1Mux OutAmpLeft ................................................................................................ 172
6.26.6. InPort1Mux ConSelectCtrl ............................................................................................. 173
6.26.7. InPort1Mux ConLstEntry0 ............................................................................................. 173
6.26.8. InPort1Mux ConLstEntry4 ............................................................................................. 173
6.26.9. InPort1Mux ConLstEntry8 ............................................................................................. 174
6.27. InPort2Mux Node (NID = 0x17) ................................................................................................... 174
6.27.1. InPort2Mux WCap ......................................................................................................... 174
6.27.2. InPort2Mux ConLst ........................................................................................................ 175
6.27.3. InPort2Mux OutAmpCap .............................................................................................. 176
6.27.4. InPort2Mux OutAmpRight .............................................................................................. 176
6.27.5. InPort2Mux OutAmpLeft ................................................................................................ 177
6.27.6. InPort2Mux ConSelectCtrl ............................................................................................. 177
6.27.7. InPort2Mux ConLstEntry0 ............................................................................................. 178
6.27.8. InPort2Mux ConLstEntry4 ............................................................................................. 178
6.27.9. InPort2Mux ConLstEntry8 ............................................................................................. 179
6.28. PCBEEP Node (NID = 0x23) ....................................................................................................... 179
6.28.1. PCBEEP OutAmpLeft .................................................................................................... 179
6.28.2. PCBEEP WCap ............................................................................................................. 180
6.28.3. PCBEEP OutAmpCap ................................................................................................... 180
6.28.4. PCBEEP Gen ................................................................................................................ 181
6.29. CD Node (NID = 0x12) ................................................................................................................ 182
6.29.1. CD WCap ...................................................................................................................... 182
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 7 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.29.2. CD PinCap ..................................................................................................................... 183
6.29.3. CD PinWCntrl ................................................................................................................ 183
6.29.4. CD ConfigDefault ........................................................................................................... 184
6.30. ADATOut Node (NID = 0x1F) ...................................................................................................... 185
6.30.1. ADATOut Cnvtr .............................................................................................................. 185
6.30.2. ADATOut WCap ............................................................................................................ 186
6.30.3. ADATOut CnvtrID .......................................................................................................... 187
6.30.4. ADATOut DigCnvtr ........................................................................................................ 187
6.30.5. ADATOut VCSR0 ..........................................................................................................188
6.31. VolumeKnob Node (NID = 0x24) ................................................................................................. 189
6.31.1. VolumeKnob WCap ....................................................................................................... 189
6.31.2. VolumeKnob VolKnobCap ............................................................................................. 190
6.31.3. VolumeKnob ConLst ......................................................................................................190
6.31.4. VolumeKnob ConLstEntry0 ........................................................................................... 191
6.31.5. VolumeKnob ConLstEntry4 ........................................................................................... 191
6.31.6. VolumeKnob UnsolResp ............................................................................................... 192
6.31.7. VolumeKnob Cntrl ......................................................................................................... 192
6.31.8. VolumeKnob VCSR0 ..................................................................................................... 193
6.32. InPort0Vol Node (NID = 0x18) ..................................................................................................... 193
6.32.1. InPort0Vol WCap ........................................................................................................... 193
6.32.2. InPort0Vol ConLst ......................................................................................................... 194
6.32.3. InPort0Vol InAmpRight ..................................................................................................195
6.32.4. InPort0Vol InAmpLeft .................................................................................................... 195
6.32.5. InPort0Vol ConLstEntry .................................................................................................196
6.33. InPort1Vol Node (NID = 0x19) ..................................................................................................... 196
6.33.1. InPort1Vol WCap ........................................................................................................... 196
6.33.2. InPort1Vol ConLst ......................................................................................................... 197
6.33.3. InPort1Vol InAmpRight ..................................................................................................198
6.33.4. InPort1Vol InAmpLeft .................................................................................................... 198
6.33.5. InPort1Vol ConLstEntry .................................................................................................198
6.34. InPort2Vol Node (NID = 0x1A) .................................................................................................... 199
6.34.1. InPort2Vol WCap ........................................................................................................... 199
6.34.2. InPort2Vol ConLst ......................................................................................................... 200
6.34.3. InPort2Vol InAmpRight ..................................................................................................200
6.34.4. InPort2Vol InAmpLeft .................................................................................................... 201
6.34.5. InPort2Vol ConLstEntry .................................................................................................201
6.35. ADC0Mux Node (NID = 0x1B) ..................................................................................................... 202
6.35.1. ADC0Mux WCap ...........................................................................................................202
6.35.2. ADC0Mux ConLst .......................................................................................................... 203
6.35.3. ADC0Mux ConSelectCtrl ............................................................................................... 203
6.35.4. ADC0Mux ConLstEntry ................................................................................................. 203
6.35.5. ADC0Mux LR ................................................................................................................. 204
6.35.6. ADC0Mux OutAmpCap ................................................................................................. 204
6.35.7. ADC0Mux OutAmpRight ................................................................................................ 205
6.35.8. ADC0Mux OutAmpLeft .................................................................................................. 205
6.36. ADC1Mux Node (NID = 0x1C) .................................................................................................... 206
6.36.1. ADC1Mux WCap ...........................................................................................................206
6.36.2. ADC1Mux ConLst .......................................................................................................... 207
6.36.3. ADC1Mux ConSelectCtrl ............................................................................................... 207
6.36.4. ADC1Mux ConLstEntry ................................................................................................. 208
6.36.5. ADC1Mux LR ................................................................................................................. 208
6.36.6. ADC1Mux OutAmpCap ................................................................................................. 209
6.36.7. ADC1Mux OutAmpRight ................................................................................................ 209
6.36.8. ADC1Mux OutAmpLeft .................................................................................................. 210
6.37. ADC2Mux Node (NID = 0x1D) .................................................................................................... 210
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 8 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.37.1. ADC2Mux WCap ...........................................................................................................210
6.37.2. ADC2Mux ConLst .......................................................................................................... 211
6.37.3. ADC2Mux ConSelectCtrl ............................................................................................... 212
6.37.4. ADC2Mux ConLstEntry ................................................................................................. 212
6.37.5. ADC2Mux LR ................................................................................................................. 213
6.37.6. ADC2Mux OutAmpCap ................................................................................................. 213
6.37.7. ADC2Mux OutAmpRight ................................................................................................ 214
6.37.8. ADC2Mux OutAmpLeft .................................................................................................. 214
7. ORDERING INFORMATION ..................................................................................................215
7.1. Part Order Numbers ...................................................................................................................... 215
8. PIN INFORMATION ...............................................................................................................216
8.1. Pin Diagram .................................................................................................................................. 216
8.2. Pin Table ....................................................................................................................................... 217
9. PACKAGE OUTLINE AND PACKAGE DIMENSIONS .........................................................219
9.1. 48-Pin LQFP .................................................................................................................................. 219
10. SOLDER REFLOW PROFILE .............................................................................................220
10.1. Standard Reflow Profile Data ...................................................................................................... 220
10.2. Pb Free Process - Package Classification Reflow Temperatures ............................................... 221
11. REVISION HISTORY ...........................................................................................................222
List of Figures
Figure 1. Single Digital Microphone (data is ported to both left and right channels) ..................................... 25
Figure 2. Stereo Digital Microphone Configuration ........................................................................................ 25
Figure 3. Quad Digital Microphone Configuration .......................................................................................... 26
Figure 4. 48-Pin LQFP Pinout .................................................................................................................... 216
Figure 5. 48-Pin LQFP Package Outline and Package Dimensions ........................................................... 219
Figure 6. Reflow Profile .............................................................................................................................. 220
List of Tables
Table 1. Impedance Sense ............................................................................................................................ 26
Table 3. Valid Digital Microphone Configurations .......................................................................................... 29
Table 4. DMIC_CLK and DMIC_0,1 Operation During Power States ............................................................ 29
Table 5. CODEC IDs ..................................................................................................................................... 32
Table 6. Pin Configuration Default Settings ................................................................................................... 36
Table 7. High Definition Audio Widget ........................................................................................................... 37
Table 8. Root ID Command Verb Format ...................................................................................................... 39
Table 9. Root ID Command Response Format ............................................................................................. 39
Table 10. Root RevID Command Verb Format .............................................................................................. 39
Table 11. Root RevID Command Response Format ..................................................................................... 39
Table 12. Root NodeInfo Command Verb Format ......................................................................................... 40
Table 13. Root NodeInfo Command Response Format ................................................................................40
Table 14. AFG Reset Command Verb Format .............................................................................................. 40
Table 15. AFG Reset Command Response Format ...................................................................................... 40
Table 16. AFG NodeInfo Command Verb Format ......................................................................................... 41
Table 17. AFG NodeInfo Command Response Format .................................................................................41
Table 18. AFG Type Command Verb Format ................................................................................................ 41
Table 19. AFG Type Command Response Format ....................................................................................... 41
Table 20. AFG Cap Command Verb Format ................................................................................................. 41
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 9 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 21. AFG Cap Command Response Format ......................................................................................... 42
Table 22. AFG PCMCap Command Verb Format ......................................................................................... 42
Table 23. AFG PCMCap Command Response Format ................................................................................. 42
Table 24. AFG Stream Command Verb Format ............................................................................................ 43
Table 25. AFG Stream Command Response Format .................................................................................... 43
Table 26. AFG InAmpCap Command Verb Format ....................................................................................... 44
Table 27. AFG InAmpCap Command Response Format .............................................................................. 44
Table 28. AFG SupPwrState Command Verb Format ................................................................................... 44
Table 29. AFG SupPwrState Command Response Format .......................................................................... 44
Table 30. AFG GPIOCnt Command Verb Format ......................................................................................... 45
Table 31. AFG GPIOCnt Command Response Format ................................................................................. 45
Table 32. AFG OutAmpCap Command Verb Format ....................................................................................46
Table 33. AFG OutAmpCap Command Response Format ........................................................................... 46
Table 34. AFG PwrState Command Verb Format ......................................................................................... 46
Table 35. AFG PwrState Command Response Format .................................................................................46
Table 36. AFG UnsolResp Command Verb Format ...................................................................................... 47
Table 37. AFG UnsolResp Command Response Format .............................................................................. 47
Table 38. AFG GPIO Command Verb Format ............................................................................................... 47
Table 39. AFG GPIO Command Response Format ...................................................................................... 48
Table 40. AFG GPIOEn Command Verb Format .......................................................................................... 48
Table 41. AFG GPIOEn Command Response Format .................................................................................. 49
Table 42. AFG GPIODir Command Verb Format .......................................................................................... 49
Table 43. AFG GPIODir Command Response Format ..................................................................................49
Table 44. AFG GPIOWakeEn Command Verb Format ................................................................................. 50
Table 45. AFG GPIOWakeEn Command Response Format ......................................................................... 50
Table 46. AFG GPIOUnsol Command Verb Format ...................................................................................... 51
Table 47. AFG GPIOUnsol Command Response Format ............................................................................. 51
Table 48. AFG GPIOSticky Command Verb Format ..................................................................................... 52
Table 49. AFG GPIOSticky Command Response Format ............................................................................. 52
Table 50. AFG SubID Command Verb Format .............................................................................................. 53
Table 51. AFG SubID Command Response Format ..................................................................................... 54
Table 52. AFG TCKT Command Verb Format .............................................................................................. 54
Table 53. AFG TCKT Command Response Format ...................................................................................... 54
Table 54. AFG Sply Command Verb Format ................................................................................................. 54
Table 55. AFG Sply Command Response Format ........................................................................................ 55
Table 56. AFG DACMode Command Verb Format ....................................................................................... 55
Table 57. AFG DACMode Command Response Format ............................................................................... 55
Table 58. AFG GPIOPlrty Command Verb Format ........................................................................................ 56
Table 59. AFG GPIOPlrty Command Response Format ............................................................................... 56
Table 60. AFG GPIODrive Command Verb Format ...................................................................................... 57
Table 61. AFG GPIODrive Command Response Format .............................................................................. 57
Table 62. AFG DMic Command Verb Format ................................................................................................ 58
Table 63. AFG DMic Command Response Format ....................................................................................... 58
Table 64. DAC0 Cnvtr Command Verb Format ............................................................................................. 59
Table 65. DAC0 Cnvtr Command Response Format .................................................................................... 59
Table 66. DAC0 OutAmpRight Command Verb Format ................................................................................ 60
Table 67. DAC0 OutAmpRight Command Response Format ....................................................................... 60
Table 68. DAC0 OutAmpLeft Command Verb Format ..................................................................................60
Table 69. DAC0 OutAmpLeft Command Response Format .......................................................................... 61
Table 70. DAC0 WCap Command Verb Format ............................................................................................ 61
Table 71. DAC0 WCap Command Response Format ................................................................................... 61
Table 72. DAC0 PwrState Command Verb Format ....................................................................................... 62
Table 73. DAC0 PwrState Command Response Format .............................................................................. 62
Table 74. DAC0 CnvtrID Command Verb Format ......................................................................................... 62
Table 75. DAC0 CnvtrID Command Response Format .................................................................................63
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 10 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 76. DAC0 LR Command Verb Format ................................................................................................. 63
Table 77. DAC0 LR Command Response Format ........................................................................................ 63
Table 78. DAC1 Cnvtr Command Verb Format ............................................................................................. 63
Table 79. DAC1 Cnvtr Command Response Format .................................................................................... 64
Table 80. DAC1 OutAmpRight Command Verb Format ................................................................................ 65
Table 81. DAC1 OutAmpRight Command Response Format ....................................................................... 65
Table 82. DAC1 OutAmpLeft Command Verb Format ..................................................................................65
Table 83. DAC1 OutAmpLeft Command Response Format .......................................................................... 65
Table 84. DAC1 WCap Command Verb Format ............................................................................................ 65
Table 85. DAC1 WCap Command Response Format ................................................................................... 66
Table 86. DAC1 PwrState Command Verb Format ....................................................................................... 66
Table 87. DAC1 PwrState Command Response Format .............................................................................. 67
Table 88. DAC1 CnvtrID Command Verb Format ......................................................................................... 67
Table 89. DAC1 CnvtrID Command Response Format .................................................................................67
Table 90. DAC1 LR Command Verb Format ................................................................................................. 68
Table 91. DAC1 LR Command Response Format ........................................................................................ 68
Table 92. DAC2 Cnvtr Command Verb Format ............................................................................................. 68
Table 93. DAC2 Cnvtr Command Response Format .................................................................................... 68
Table 94. DAC2 OutAmpRight Command Verb Format ................................................................................ 69
Table 95. DAC2 OutAmpRight Command Response Format ....................................................................... 70
Table 96. DAC2 OutAmpLeft Command Verb Format ..................................................................................70
Table 97. DAC2 OutAmpLeft Command Response Format .......................................................................... 70
Table 98. DAC2 WCap Command Verb Format ............................................................................................ 70
Table 99. DAC2 WCap Command Response Format ................................................................................... 70
Table 100. DAC2 PwrState Command Verb Format ..................................................................................... 71
Table 101. DAC2 PwrState Command Response Format ............................................................................ 71
Table 102. DAC2 CnvtrID Command Verb Format ....................................................................................... 72
Table 103. DAC2 CnvtrID Command Response Format ............................................................................... 72
Table 104. DAC2 LR Command Verb Format ............................................................................................... 72
Table 105. DAC2 LR Command Response Format ...................................................................................... 73
Table 106. DAC3 Cnvtr Command Verb Format ........................................................................................... 73
Table 107. DAC3 Cnvtr Command Response Format ..................................................................................73
Table 108. DAC3 OutAmpRight Command Verb Format .............................................................................. 74
Table 109. DAC3 OutAmpRight Command Response Format ..................................................................... 74
Table 110. DAC3 OutAmpLeft Command Verb Format ................................................................................ 75
Table 111. DAC3 OutAmpLeft Command Response Format ........................................................................ 75
Table 112. DAC3 WCap Command Verb Format .......................................................................................... 75
Table 113. DAC3 WCap Command Response Format ................................................................................. 75
Table 114. DAC3 PwrState Command Verb Format ..................................................................................... 76
Table 115. DAC3 PwrState Command Response Format ............................................................................ 76
Table 116. DAC3 CnvtrID Command Verb Format ....................................................................................... 77
Table 117. DAC3 CnvtrID Command Response Format ............................................................................... 77
Table 118. DAC3 LR Command Verb Format ............................................................................................... 77
Table 119. DAC3 LR Command Response Format ...................................................................................... 77
Table 120. DAC4 Cnvtr Command Verb Format ........................................................................................... 78
Table 121. DAC4 Cnvtr Command Response Format ..................................................................................78
Table 122. DAC4 OutAmpRight Command Verb Format .............................................................................. 79
Table 123. DAC4 OutAmpRight Command Response Format ..................................................................... 79
Table 124. DAC4 OutAmpLeft Command Verb Format ................................................................................ 79
Table 125. DAC4 OutAmpLeft Command Response Format ........................................................................ 80
Table 126. DAC4 WCap Command Verb Format .......................................................................................... 80
Table 127. DAC4 WCap Command Response Format ................................................................................. 80
Table 128. DAC4 PwrState Command Verb Format ..................................................................................... 81
Table 129. DAC4 PwrState Command Response Format ............................................................................ 81
Table 130. DAC4 CnvtrID Command Verb Format ....................................................................................... 81
Table 131. DAC4 CnvtrID Command Response Format ............................................................................... 82
Table 132. DAC4 LR Command Verb Format ............................................................................................... 82
Table 133. DAC4 LR Command Response Format ...................................................................................... 82
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 11 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 134. ADC0 Cnvtr Command Verb Format ........................................................................................... 82
Table 135. ADC0 Cnvtr Command Response Format ..................................................................................83
Table 136. ADC0 WCap Command Verb Format .......................................................................................... 84
Table 137. ADC0 WCap Command Response Format ................................................................................. 84
Table 138. ADC0 ConLst Command Verb Format ........................................................................................ 85
Table 139. ADC0 ConLst Command Response Format ................................................................................ 85
Table 140. ADC0 ConLstEntry Command Verb Format ................................................................................85
Table 141. ADC0 ConLstEntry Command Response Format ....................................................................... 85
Table 142. ADC0 ProcState Command Verb Format .................................................................................... 85
Table 143. ADC0 ProcState Command Response Format ........................................................................... 86
Table 144. ADC0 PwrState Command Verb Format ..................................................................................... 86
Table 145. ADC0 PwrState Command Response Format ............................................................................ 86
Table 146. ADC0 CnvtrID Command Verb Format ....................................................................................... 87
Table 147. ADC0 CnvtrID Command Response Format ............................................................................... 87
Table 148. ADC1 Cnvtr Command Verb Format ........................................................................................... 87
Table 149. ADC1 Cnvtr Command Response Format ..................................................................................87
Table 150. ADC1 WCap Command Verb Format .......................................................................................... 88
Table 151. ADC1 WCap Command Response Format ................................................................................. 89
Table 152. ADC1 ConLst Command Verb Format ........................................................................................ 89
Table 153. ADC1 ConLst Command Response Format ................................................................................ 90
Table 154. ADC1 ConLstEntry Command Verb Format ................................................................................90
Table 155. ADC1 ConLstEntry Command Response Format ....................................................................... 90
Table 156. ADC1 ProcState Command Verb Format .................................................................................... 90
Table 157. ADC1 ProcState Command Response Format ........................................................................... 91
Table 158. ADC1 PwrState Command Verb Format ..................................................................................... 91
Table 159. ADC1 PwrState Command Response Format ............................................................................ 91
Table 160. ADC1 CnvtrID Command Verb Format ....................................................................................... 92
Table 161. ADC1 CnvtrID Command Response Format ............................................................................... 92
Table 162. ADC2 Cnvtr Command Verb Format ........................................................................................... 92
Table 163. ADC2 Cnvtr Command Response Format ..................................................................................92
Table 164. ADC2 WCap Command Verb Format .......................................................................................... 93
Table 165. ADC2 WCap Command Response Format ................................................................................. 94
Table 166. ADC2 ConLst Command Verb Format ........................................................................................ 94
Table 167. ADC2 ConLst Command Response Format ................................................................................ 95
Table 168. ADC2 ConLstEntry Command Verb Format ................................................................................95
Table 169. ADC2 ConLstEntry Command Response Format ....................................................................... 95
Table 170. ADC2 ProcState Command Verb Format .................................................................................... 95
Table 171. ADC2 ProcState Command Response Format ........................................................................... 96
Table 172. ADC2 PwrState Command Verb Format ..................................................................................... 96
Table 173. ADC2 PwrState Command Response Format ............................................................................ 96
Table 174. ADC2 CnvtrID Command Verb Format ....................................................................................... 97
Table 175. ADC2 CnvtrID Command Response Format ............................................................................... 97
Table 176. SPDIFOut Cnvtr Command Verb Format .................................................................................... 97
Table 177. SPDIFOut Cnvtr Command Response Format ............................................................................ 97
Table 178. SPDIFOut WCap Command Verb Format ...................................................................................98
Table 179. SPDIFOut WCap Command Response Format .......................................................................... 99
Table 180. SPDIFOut PCM Command Verb Format ..................................................................................... 99
Table 181. SPDIFOut PCM Command Response Format .......................................................................... 100
Table 182. SPDIFOut Stream Command Verb Format ............................................................................... 101
Table 183. SPDIFOut Stream Command Response Format ....................................................................... 101
Table 184. SPDIFOut CnvtrID Command Verb Format ............................................................................... 101
Table 185. SPDIFOut CnvtrID Command Response Format ...................................................................... 101
Table 186. SPDIFOut DigCnvtr Command Verb Format ............................................................................. 102
Table 187. SPDIFOut DigCnvtr Command Response Format .................................................................... 102
Table 188. SPDIFIn Cnvtr Command Verb Format ..................................................................................... 102
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 12 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 189. SPDIFIn Cnvtr Command Response Format ............................................................................ 103
Table 190. SPDIFIn WCap Command Verb Format ....................................................................................104
Table 191. SPDIFIn WCap Command Response Format ........................................................................... 104
Table 192. SPDIFIn PCMCap Command Verb Format ............................................................................... 105
Table 193. SPDIFIn PCMCap Command Response Format ...................................................................... 105
Table 194. SPDIFIn Stream Command Verb Format ..................................................................................106
Table 195. SPDIFIn Stream Command Response Format ......................................................................... 106
Table 196. SPDIFIn ConLst Command Verb Format ..................................................................................106
Table 197. SPDIFIn ConLst Command Response Format .......................................................................... 106
Table 198. SPDIFIn ConLstEntry Command Verb Format .......................................................................... 106
Table 199. SPDIFIn ConLstEntry Command Response Format ................................................................. 107
Table 200. SPDIFIn CnvtrID Command Verb Format .................................................................................107
Table 201. SPDIFIn CnvtrID Command Response Format ......................................................................... 107
Table 202. SPDIFIn DigCnvtr Command Verb Format ................................................................................107
Table 203. SPDIFIn DigCnvtr Command Response Format ....................................................................... 108
Table 204. SPDIFIn VCSR0 Command Verb Format .................................................................................. 108
Table 205. SPDIFIn VCSR0 Command Response Format ......................................................................... 108
Table 206. PortA WCap Command Verb Format ........................................................................................ 110
Table 207. PortA WCap Command Response Format ................................................................................ 111
Table 208. PortA PinCap Command Verb Format ...................................................................................... 111
Table 209. PortA PinCap Command Response Format .............................................................................. 112
Table 210. PortA ConLst Command Verb Format ....................................................................................... 112
Table 211. PortA ConLst Command Response Format .............................................................................. 112
Table 212. PortA ConLstEntry Command Verb Format .............................................................................. 113
Table 213. PortA ConLstEntry Command Response Format ...................................................................... 113
Table 214. PortA ConSelectCtrl Command Verb Format ............................................................................ 113
Table 215. PortA ConSelectCtrl Command Response Format ................................................................... 113
Table 216. PortA PinWCntrl Command Verb Format .................................................................................. 114
Table 217. PortA PinWCntrl Command Response Format ......................................................................... 114
Table 218. PortA UnsolResp Command Verb Format .................................................................................114
Table 219. PortA UnsolResp Command Response Format ........................................................................ 115
Table 220. PortA ChSense Command Verb Format ...................................................................................115
Table 221. PortA ChSense Command Response Format ........................................................................... 115
Table 222. PortA ConfigDefault Command Verb Format ............................................................................ 116
Table 223. PortA ConfigDefault Command Response Format .................................................................... 116
Table 224. PortB WCap Command Verb Format ........................................................................................ 116
Table 225. PortB WCap Command Response Format ................................................................................ 117
Table 226. PortB PinCap Command Verb Format ...................................................................................... 117
Table 227. PortB PinCap Command Response Format .............................................................................. 118
Table 228. PortB ConLst Command Verb Format ....................................................................................... 118
Table 229. PortB ConLst Command Response Format .............................................................................. 118
Table 230. PortB ConLstEntry Command Verb Format .............................................................................. 119
Table 231. PortB ConLstEntry Command Response Format ...................................................................... 119
Table 232. PortB ConSelectCtrl Command Verb Format ............................................................................ 119
Table 233. PortB ConSelectCtrl Command Response Format ................................................................... 119
Table 234. PortB PinWCntrl Command Verb Format .................................................................................. 120
Table 235. PortB PinWCntrl Command Response Format ......................................................................... 120
Table 236. PortB UnsolResp Command Verb Format .................................................................................120
Table 237. PortB UnsolResp Command Response Format ........................................................................ 121
Table 238. PortB ChSense Command Verb Format ...................................................................................121
Table 239. PortB ChSense Command Response Format ........................................................................... 121
Table 240. PortB ConfigDefault Command Verb Format ............................................................................ 122
Table 241. PortB ConfigDefault Command Response Format .................................................................... 122
Table 242. PortC WCap Command Verb Format ........................................................................................ 122
Table 243. PortC WCap Command Response Format ............................................................................... 123
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 13 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 244. PortC PinCap Command Verb Format ...................................................................................... 123
Table 245. PortC PinCap Command Response Format .............................................................................. 124
Table 246. PortC ConLst Command Verb Format ....................................................................................... 124
Table 247. PortC ConLst Command Response Format .............................................................................. 124
Table 248. PortC ConLstEntry Command Verb Format .............................................................................. 125
Table 249. PortC ConLstEntry Command Response Format ...................................................................... 125
Table 250. PortC PinWCntrl Command Verb Format .................................................................................. 125
Table 251. PortC PinWCntrl Command Response Format ......................................................................... 125
Table 252. PortC UnsolResp Command Verb Format ................................................................................ 126
Table 253. PortC UnsolResp Command Response Format ........................................................................ 126
Table 254. PortC ChSense Command Verb Format ...................................................................................126
Table 255. PortC ChSense Command Response Format ........................................................................... 126
Table 256. PortC ConfigDefault Command Verb Format ............................................................................ 127
Table 257. PortC ConfigDefault Command Response Format .................................................................... 127
Table 258. PortD WCap Command Verb Format ........................................................................................ 128
Table 259. PortD WCap Command Response Format ............................................................................... 128
Table 260. PortD PinCap Command Verb Format ...................................................................................... 129
Table 261. PortD PinCap Command Response Format .............................................................................. 129
Table 262. PortD ConLst Command Verb Format ....................................................................................... 129
Table 263. PortD ConLst Command Response Format .............................................................................. 130
Table 264. PortD ConLstEntry Command Verb Format .............................................................................. 130
Table 265. PortD ConLstEntry Command Response Format ...................................................................... 130
Table 266. PortD PinWCntrl Command Verb Format .................................................................................. 130
Table 267. PortD PinWCntrl Command Response Format ......................................................................... 131
Table 268. PortD UnsolResp Command Verb Format ................................................................................ 131
Table 269. PortD UnsolResp Command Response Format ........................................................................ 131
Table 270. PortD ChSense Command Verb Format ...................................................................................132
Table 271. PortD ChSense Command Response Format ........................................................................... 132
Table 272. PortD ConfigDefault Command Verb Format ............................................................................ 132
Table 273. PortD ConfigDefault Command Response Format .................................................................... 133
Table 274. PortE WCap Command Verb Format ........................................................................................ 133
Table 275. PortE WCap Command Response Format ................................................................................ 133
Table 276. PortE PinCap Command Verb Format ...................................................................................... 134
Table 277. PortE PinCap Command Response Format .............................................................................. 134
Table 278. PortE ConLst Command Verb Format ....................................................................................... 135
Table 279. PortE ConLst Command Response Format .............................................................................. 135
Table 280. PortE ConLstEntry Command Verb Format .............................................................................. 135
Table 281. PortE ConLstEntry Command Response Format ...................................................................... 135
Table 282. PortE PinWCntrl Command Verb Format .................................................................................. 136
Table 283. PortE PinWCntrl Command Response Format ......................................................................... 136
Table 284. PortE UnsolResp Command Verb Format .................................................................................136
Table 285. PortE UnsolResp Command Response Format ........................................................................ 136
Table 286. PortE ChSense Command Verb Format ...................................................................................137
Table 287. PortE ChSense Command Response Format ........................................................................... 137
Table 288. PortE ConfigDefault Command Verb Format ............................................................................ 137
Table 289. PortE ConfigDefault Command Response Format .................................................................... 138
Table 290. PortF WCap Command Verb Format ........................................................................................ 138
Table 291. PortF WCap Command Response Format ................................................................................ 138
Table 292. PortF PinCap Command Verb Format ....................................................................................... 139
Table 293. PortF PinCap Command Response Format .............................................................................. 139
Table 294. PortF ConLst Command Verb Format ....................................................................................... 140
Table 295. PortF ConLst Command Response Format .............................................................................. 140
Table 296. PortF ConLstEntry Command Verb Format ...............................................................................141
Table 297. PortF ConLstEntry Command Response Format ...................................................................... 141
Table 298. PortF PinWCntrl Command Verb Format .................................................................................. 141
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 14 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 299. PortF PinWCntrl Command Response Format .......................................................................... 141
Table 300. PortF UnsolResp Command Verb Format .................................................................................142
Table 301. PortF UnsolResp Command Response Format ........................................................................ 142
Table 302. PortF ChSense Command Verb Format .................................................................................... 142
Table 303. PortF ChSense Command Response Format ........................................................................... 142
Table 304. PortF ConfigDefault Command Verb Format .............................................................................143
Table 305. PortF ConfigDefault Command Response Format .................................................................... 143
Table 306. PortG WCap Command Verb Format ........................................................................................ 144
Table 307. PortG WCap Command Response Format ............................................................................... 144
Table 308. PortG PinCap Command Verb Format ...................................................................................... 145
Table 309. PortG PinCap Command Response Format ............................................................................. 145
Table 310. PortG ConLst Command Verb Format ...................................................................................... 145
Table 311. PortG ConLst Command Response Format .............................................................................. 146
Table 312. PortG ConLstEntry Command Verb Format .............................................................................. 146
Table 313. PortG ConLstEntry Command Response Format ..................................................................... 146
Table 314. PortG PinWCntrl Command Verb Format .................................................................................. 146
Table 315. PortG PinWCntrl Command Response Format ......................................................................... 146
Table 316. PortG UnsolResp Command Verb Format ................................................................................ 147
Table 317. PortG UnsolResp Command Response Format ........................................................................ 147
Table 318. PortG ChSense Command Verb Format ...................................................................................147
Table 319. PortG ChSense Command Response Format .......................................................................... 148
Table 320. PortG ConfigDefault Command Verb Format ............................................................................ 148
Table 321. PortG ConfigDefault Command Response Format ................................................................... 148
Table 322. PortH WCap Command Verb Format ........................................................................................ 149
Table 323. PortH WCap Command Response Format ............................................................................... 149
Table 324. PortH PinCap Command Verb Format ...................................................................................... 150
Table 325. PortH PinCap Command Response Format .............................................................................. 150
Table 326. PortH ConLst Command Verb Format ....................................................................................... 150
Table 327. PortH ConLst Command Response Format .............................................................................. 151
Table 328. PortH ConLstEntry Command Verb Format .............................................................................. 151
Table 329. PortH ConLstEntry Command Response Format ...................................................................... 151
Table 330. PortH PinWCntrl Command Verb Format .................................................................................. 151
Table 331. PortH PinWCntrl Command Response Format ......................................................................... 151
Table 332. PortH UnsolResp Command Verb Format ................................................................................ 152
Table 333. PortH UnsolResp Command Response Format ........................................................................ 152
Table 334. PortH ChSense Command Verb Format ...................................................................................152
Table 335. PortH ChSense Command Response Format ........................................................................... 153
Table 336. PortH ConfigDefault Command Verb Format ............................................................................ 153
Table 337. PortH ConfigDefault Command Response Format .................................................................... 153
Table 338. DMic0 WCap Command Verb Format ....................................................................................... 154
Table 339. DMic0 WCap Command Response Format .............................................................................. 154
Table 340. DMic0 PinCap Command Verb Format ..................................................................................... 155
Table 341. DMic0 PinCap Command Response Format ............................................................................. 155
Table 342. DMic0 PinWCntrl Command Verb Format .................................................................................156
Table 343. DMic0 PinWCntrl Command Response Format ........................................................................ 156
Table 344. DMic0 ConfigDefault Command Verb Format ........................................................................... 156
Table 345. DMic0 ConfigDefault Command Response Format ................................................................... 156
Table 346. DMic1 WCap Command Verb Format ....................................................................................... 157
Table 347. DMic1 WCap Command Response Format .............................................................................. 157
Table 348. DMic1 PinCap Command Verb Format ..................................................................................... 158
Table 349. DMic1 PinCap Command Response Format ............................................................................. 158
Table 350. DMic1 PinWCntrl Command Verb Format .................................................................................159
Table 351. DMic1 PinWCntrl Command Response Format ........................................................................ 159
Table 352. DMic1 ConfigDefault Command Verb Format ........................................................................... 159
Table 353. DMic1 ConfigDefault Command Response Format ................................................................... 160
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 15 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 354. DigOut0 WCap Command Verb Format ....................................................................................160
Table 355. DigOut0 WCap Command Response Format ........................................................................... 160
Table 356. DigOut0 PinCap Command Verb Format ..................................................................................161
Table 357. DigOut0 PinCap Command Response Format .......................................................................... 161
Table 358. DigOut0 ConLst Command Verb Format ................................................................................... 162
Table 359. DigOut0 ConLst Command Response Format .......................................................................... 162
Table 360. DigOut0 ConLstEntry0 Command Verb Format ........................................................................ 162
Table 361. DigOut0 ConLstEntry0 Command Response Format ................................................................ 162
Table 362. DigOut0 ConLstEntry4 Command Verb Format ........................................................................ 163
Table 363. DigOut0 ConLstEntry4 Command Response Format ................................................................ 163
Table 364. DigOut0 ConSelectCtrl Command Verb Format ........................................................................ 163
Table 365. DigOut0 ConSelectCtrl Command Response Format ............................................................... 163
Table 366. DigOut0 PinWCntrl Command Verb Format .............................................................................. 163
Table 367. DigOut0 PinWCntrl Command Response Format ..................................................................... 164
Table 368. DigOut0 ConfigDefault Command Verb Format ........................................................................ 164
Table 369. DigOut0 ConfigDefault Command Response Format ................................................................ 164
Table 370. DigIn WCap Command Verb Format ......................................................................................... 165
Table 371. DigIn WCap Command Response Format ................................................................................ 165
Table 372. DigIn PinCap Command Verb Format ....................................................................................... 166
Table 373. DigIn PinCap Command Response Format .............................................................................. 166
Table 374. DigIn PwrState Command Verb Format .................................................................................... 166
Table 375. DigIn PwrState Command Response Format ............................................................................ 167
Table 376. DigIn PinWCntrl Command Verb Format ................................................................................... 167
Table 377. DigIn PinWCntrl Command Response Format .......................................................................... 167
Table 378. DigIn UnsolResp Command Verb Format .................................................................................167
Table 379. DigIn UnsolResp Command Response Format ......................................................................... 168
Table 380. DigIn ChSense Command Verb Format .................................................................................... 168
Table 381. DigIn ChSense Command Response Format ........................................................................... 168
Table 382. DigIn EAPD Command Verb Format ......................................................................................... 169
Table 383. DigIn EAPD Command Response Format ................................................................................ 169
Table 384. DigIn ConfigDefault Command Verb Format .............................................................................169
Table 385. DigIn ConfigDefault Command Response Format .................................................................... 169
Table 386. InPort0Mux WCap Command Verb Format ............................................................................... 170
Table 387. InPort0Mux WCap Command Response Format ...................................................................... 170
Table 388. InPort0Mux ConLst Command Verb Format ............................................................................. 171
Table 389. InPort0Mux ConLst Command Response Format ..................................................................... 171
Table 390. InPort0Mux OutAmpCap Command Verb Format ..................................................................... 171
Table 391. InPort0Mux OutAmpCap Command Response Format ............................................................ 171
Table 392. InPort0Mux OutAmpRight Command Verb Format ................................................................... 172
Table 393. InPort0Mux OutAmpRight Command Response Format ........................................................... 172
Table 394. InPort0Mux OutAmpLeft Command Verb Format ...................................................................... 172
Table 395. InPort0Mux OutAmpLeft Command Response Format ............................................................. 173
Table 396. InPort0Mux ConSelectCtrl Command Verb Format ................................................................... 173
Table 397. InPort0Mux ConSelectCtrl Command Response Format .......................................................... 173
Table 398. InPort0Mux ConLstEntry0 Command Verb Format ................................................................... 173
Table 399. InPort0Mux ConLstEntry0 Command Response Format .......................................................... 173
Table 400. InPort0Mux ConLstEntry4 Command Verb Format ................................................................... 174
Table 401. InPort0Mux ConLstEntry4 Command Response Format .......................................................... 174
Table 402. InPort0Mux ConLstEntry8 Command Verb Format ................................................................... 174
Table 403. InPort0Mux ConLstEntry8 Command Response Format .......................................................... 174
Table 404. InPort1Mux WCap Command Verb Format ............................................................................... 175
Table 405. InPort1Mux WCap Command Response Format ...................................................................... 175
Table 406. InPort1Mux ConLst Command Verb Format ............................................................................. 176
Table 407. InPort1Mux ConLst Command Response Format ..................................................................... 176
Table 408. InPort1Mux OutAmpCap Command Verb Format ..................................................................... 176
STAC9271/9274
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IDT™
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IDT CONFIDENTIAL
Table 409. InPort1Mux OutAmpCap Command Response Format ............................................................ 176
Table 410. InPort1Mux OutAmpRight Command Verb Format ................................................................... 177
Table 411. InPort1Mux OutAmpRight Command Response Format ........................................................... 177
Table 412. InPort1Mux OutAmpLeft Command Verb Format ...................................................................... 177
Table 413. InPort1Mux OutAmpLeft Command Response Format ............................................................. 177
Table 414. InPort1Mux ConSelectCtrl Command Verb Format ................................................................... 178
Table 415. InPort1Mux ConSelectCtrl Command Response Format .......................................................... 178
Table 416. InPort1Mux ConLstEntry0 Command Verb Format ................................................................... 178
Table 417. InPort1Mux ConLstEntry0 Command Response Format .......................................................... 178
Table 418. InPort1Mux ConLstEntry4 Command Verb Format ................................................................... 178
Table 419. InPort1Mux ConLstEntry4 Command Response Format .......................................................... 179
Table 420. InPort1Mux ConLstEntry8 Command Verb Format ................................................................... 179
Table 421. InPort1Mux ConLstEntry8 Command Response Format .......................................................... 179
Table 422. InPort2Mux WCap Command Verb Format ............................................................................... 179
Table 423. InPort2Mux WCap Command Response Format ...................................................................... 180
Table 424. InPort2Mux ConLst Command Verb Format ............................................................................. 180
Table 425. InPort2Mux ConLst Command Response Format ..................................................................... 181
Table 426. InPort2Mux OutAmpCap Command Verb Format ..................................................................... 181
Table 427. InPort2Mux OutAmpCap Command Response Format ............................................................ 181
Table 428. InPort2Mux OutAmpRight Command Verb Format ................................................................... 181
Table 429. InPort2Mux OutAmpRight Command Response Format ........................................................... 182
Table 430. InPort2Mux OutAmpLeft Command Verb Format ...................................................................... 182
Table 431. InPort2Mux OutAmpLeft Command Response Format ............................................................. 182
Table 432. InPort2Mux ConSelectCtrl Command Verb Format ................................................................... 182
Table 433. InPort2Mux ConSelectCtrl Command Response Format .......................................................... 183
Table 434. InPort2Mux ConLstEntry0 Command Verb Format ................................................................... 183
Table 435. InPort2Mux ConLstEntry0 Command Response Format .......................................................... 183
Table 436. InPort2Mux ConLstEntry4 Command Verb Format ................................................................... 183
Table 437. InPort2Mux ConLstEntry4 Command Response Format .......................................................... 183
Table 438. InPort2Mux ConLstEntry8 Command Verb Format ................................................................... 184
Table 439. InPort2Mux ConLstEntry8 Command Response Format .......................................................... 184
Table 440. PCBEEP OutAmpLeft Command Verb Format ......................................................................... 184
Table 441. PCBEEP OutAmpLeft Command Response Format ................................................................. 184
Table 442. PCBEEP WCap Command Verb Format ................................................................................... 185
Table 443. PCBEEP WCap Command Response Format .......................................................................... 185
Table 444. PCBEEP OutAmpCap Command Verb Format ......................................................................... 185
Table 445. PCBEEP OutAmpCap Command Response Format ................................................................ 185
Table 446. PCBEEP Gen Command Verb Format ......................................................................................186
Table 447. PCBEEP Gen Command Response Format ............................................................................. 186
Table 448. CD WCap Command Verb Format ............................................................................................ 187
Table 449. CD WCap Command Response Format ................................................................................... 187
Table 450. CD PinCap Command Verb Format .......................................................................................... 188
Table 451. CD PinCap Command Response Format .................................................................................. 188
Table 452. CD PinWCntrl Command Verb Format ...................................................................................... 188
Table 453. CD PinWCntrl Command Response Format ............................................................................. 189
Table 454. CD ConfigDefault Command Verb Format ................................................................................189
Table 455. CD ConfigDefault Command Response Format ........................................................................ 189
Table 456. ADATOut Cnvtr Command Verb Format ...................................................................................190
Table 457. ADATOut Cnvtr Command Response Format ........................................................................... 190
Table 458. ADATOut WCap Command Verb Format .................................................................................. 191
Table 459. ADATOut WCap Command Response Format ......................................................................... 191
Table 460. ADATOut CnvtrID Command Verb Format ................................................................................ 192
Table 461. ADATOut CnvtrID Command Response Format ....................................................................... 192
Table 462. ADATOut DigCnvtr Command Verb Format .............................................................................. 192
Table 463. ADATOut DigCnvtr Command Response Format ..................................................................... 193
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
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IDT CONFIDENTIAL
Table 464. ADATOut VCSR0 Command Verb Format ................................................................................ 193
Table 465. ADATOut VCSR0 Command Response Format ....................................................................... 193
Table 466. VolumeKnob WCap Command Verb Format ............................................................................. 194
Table 467. VolumeKnob WCap Command Response Format .................................................................... 195
Table 468. VolumeKnob VolKnobCap Command Verb Format .................................................................. 195
Table 469. VolumeKnob VolKnobCap Command Response Format .......................................................... 195
Table 470. VolumeKnob ConLst Command Verb Format ........................................................................... 195
Table 471. VolumeKnob ConLst Command Response Format ................................................................... 195
Table 472. VolumeKnob ConLstEntry0 Command Verb Format ................................................................. 196
Table 473. VolumeKnob ConLstEntry0 Command Response Format ........................................................ 196
Table 474. VolumeKnob ConLstEntry4 Command Verb Format ................................................................. 196
Table 475. VolumeKnob ConLstEntry4 Command Response Format ........................................................ 196
Table 476. VolumeKnob UnsolResp Command Verb Format ..................................................................... 197
Table 477. VolumeKnob UnsolResp Command Response Format ............................................................ 197
Table 478. VolumeKnob Cntrl Command Verb Format ............................................................................... 197
Table 479. VolumeKnob Cntrl Command Response Format ...................................................................... 198
Table 480. VolumeKnob VCSR0 Command Verb Format ........................................................................... 198
Table 481. VolumeKnob VCSR0 Command Response Format .................................................................. 198
Table 482. InPort0Vol WCap Command Verb Format ................................................................................ 198
Table 483. InPort0Vol WCap Command Response Format ........................................................................ 199
Table 484. InPort0Vol ConLst Command Verb Format ...............................................................................199
Table 485. InPort0Vol ConLst Command Response Format ...................................................................... 200
Table 486. InPort0Vol InAmpRight Command Verb Format ........................................................................ 200
Table 487. InPort0Vol InAmpRight Command Response Format ............................................................... 200
Table 488. InPort0Vol InAmpLeft Command Verb Format .......................................................................... 200
Table 489. InPort0Vol InAmpLeft Command Response Format ................................................................. 200
Table 490. InPort0Vol ConLstEntry Command Verb Format ....................................................................... 201
Table 491. InPort0Vol ConLstEntry Command Response Format .............................................................. 201
Table 492. InPort1Vol WCap Command Verb Format ................................................................................ 201
Table 493. InPort1Vol WCap Command Response Format ........................................................................ 201
Table 494. InPort1Vol ConLst Command Verb Format ...............................................................................202
Table 495. InPort1Vol ConLst Command Response Format ...................................................................... 202
Table 496. InPort1Vol InAmpRight Command Verb Format ........................................................................ 203
Table 497. InPort1Vol InAmpRight Command Response Format ............................................................... 203
Table 498. InPort1Vol InAmpLeft Command Verb Format .......................................................................... 203
Table 499. InPort1Vol InAmpLeft Command Response Format ................................................................. 203
Table 500. InPort1Vol ConLstEntry Command Verb Format ....................................................................... 203
Table 501. InPort1Vol ConLstEntry Command Response Format .............................................................. 204
Table 502. InPort2Vol WCap Command Verb Format ................................................................................ 204
Table 503. InPort2Vol WCap Command Response Format ........................................................................ 204
Table 504. InPort2Vol ConLst Command Verb Format ...............................................................................205
Table 505. InPort2Vol ConLst Command Response Format ...................................................................... 205
Table 506. InPort2Vol InAmpRight Command Verb Format ........................................................................ 205
Table 507. InPort2Vol InAmpRight Command Response Format ............................................................... 206
Table 508. InPort2Vol InAmpLeft Command Verb Format .......................................................................... 206
Table 509. InPort2Vol InAmpLeft Command Response Format ................................................................. 206
Table 510. InPort2Vol ConLstEntry Command Verb Format ....................................................................... 206
Table 511. InPort2Vol ConLstEntry Command Response Format .............................................................. 206
Table 512. ADC0Mux WCap Command Verb Format ................................................................................. 207
Table 513. ADC0Mux WCap Command Response Format ........................................................................ 207
Table 514. ADC0Mux ConLst Command Verb Format ............................................................................... 208
Table 515. ADC0Mux ConLst Command Response Format ....................................................................... 208
Table 516. ADC0Mux ConSelectCtrl Command Verb Format ..................................................................... 208
Table 517. ADC0Mux ConSelectCtrl Command Response Format ............................................................ 208
Table 518. ADC0Mux ConLstEntry Command Verb Format ....................................................................... 208
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
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IDT CONFIDENTIAL
Table 519. ADC0Mux ConLstEntry Command Response Format .............................................................. 209
Table 520. ADC0Mux LR Command Verb Format ......................................................................................209
Table 521. ADC0Mux LR Command Response Format .............................................................................. 209
Table 522. ADC0Mux OutAmpCap Command Verb Format ....................................................................... 209
Table 523. ADC0Mux OutAmpCap Command Response Format .............................................................. 210
Table 524. ADC0Mux OutAmpRight Command Verb Format ..................................................................... 210
Table 525. ADC0Mux OutAmpRight Command Response Format ............................................................. 210
Table 526. ADC0Mux OutAmpLeft Command Verb Format ........................................................................ 210
Table 527. ADC0Mux OutAmpLeft Command Response Format ............................................................... 211
Table 528. ADC1Mux WCap Command Verb Format ................................................................................. 211
Table 529. ADC1Mux WCap Command Response Format ........................................................................ 211
Table 530. ADC1Mux ConLst Command Verb Format ............................................................................... 212
Table 531. ADC1Mux ConLst Command Response Format ....................................................................... 212
Table 532. ADC1Mux ConSelectCtrl Command Verb Format ..................................................................... 212
Table 533. ADC1Mux ConSelectCtrl Command Response Format ............................................................ 213
Table 534. ADC1Mux ConLstEntry Command Verb Format ....................................................................... 213
Table 535. ADC1Mux ConLstEntry Command Response Format .............................................................. 213
Table 536. ADC1Mux LR Command Verb Format ......................................................................................213
Table 537. ADC1Mux LR Command Response Format .............................................................................. 213
Table 538. ADC1Mux OutAmpCap Command Verb Format ....................................................................... 214
Table 539. ADC1Mux OutAmpCap Command Response Format .............................................................. 214
Table 540. ADC1Mux OutAmpRight Command Verb Format ..................................................................... 214
Table 541. ADC1Mux OutAmpRight Command Response Format ............................................................. 215
Table 542. ADC1Mux OutAmpLeft Command Verb Format ........................................................................ 215
Table 543. ADC1Mux OutAmpLeft Command Response Format ............................................................... 215
Table 544. ADC2Mux WCap Command Verb Format ................................................................................. 215
Table 545. ADC2Mux WCap Command Response Format ........................................................................ 215
Table 546. ADC2Mux ConLst Command Verb Format ............................................................................... 216
Table 547. ADC2Mux ConLst Command Response Format ....................................................................... 216
Table 548. ADC2Mux ConSelectCtrl Command Verb Format ..................................................................... 217
Table 549. ADC2Mux ConSelectCtrl Command Response Format ............................................................ 217
Table 550. ADC2Mux ConLstEntry Command Verb Format ....................................................................... 217
Table 551. ADC2Mux ConLstEntry Command Response Format .............................................................. 217
Table 552. ADC2Mux LR Command Verb Format ......................................................................................218
Table 553. ADC2Mux LR Command Response Format .............................................................................. 218
Table 554. ADC2Mux OutAmpCap Command Verb Format ....................................................................... 218
Table 555. ADC2Mux OutAmpCap Command Response Format .............................................................. 218
Table 556. ADC2Mux OutAmpRight Command Verb Format ..................................................................... 219
Table 557. ADC2Mux OutAmpRight Command Response Format ............................................................. 219
Table 558. ADC2Mux OutAmpLeft Command Verb Format ........................................................................ 219
Table 559. ADC2Mux OutAmpLeft Command Response Format ............................................................... 219
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 19 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
1. DESCRIPTION
The STAC9271/74 are 10-channel audio CODECs compatible with the Intel High Definition (HD)
Audio Interface (formerly known as “Azalia”). The STAC9271/74 CODECs provide high quality, HD
Audio capability to notebook and cost sensitive desktop PC applications.
The STAC9271/74 incorporate IDT's proprietary technology to achieve a DAC SNR up to 105dB.
The higher performance and quality of IDT’s audio solutions brings consumer electronics level per-
formance to the notebook, desktop and media center PC.
The STAC9271/74 provide stereo 24- bit, full duplex resolution, supporting sample rates up to 192
KHz by the DAC and ADC. The SPDIF In/Out support sample rates of 96 KHz KHz, 48 KHz and 44.1
KHz plus SPDIF OUT supports 88.2 KHz. Additional sample rates are supported by the driver soft-
ware.
The STAC9271/74 support all desired ten channel configurations, including switchable Headphone
Out, and Universal JacksTM func¬tionality for jack detection and re-tasking. The SPDIF interface
provides connectivity to Consumer Electronic equipment like Dolby Digital decoders, powered
speakers, mini disk drives or a home entertainment systems. All analog I/O pairs support LINE_IN,
LINE_OUT and MIC.
MIC inputs can be programmed with 0/10/20/30/40dB boost. For more advanced configurations, the
STAC9271/74 have up to five General Purpose I/O (GPIO) pins. Also provides a single ended CD
input for compatibility with DRM solutions and to support leg¬acy OS issues.
STAC9271/74 integrates a headphone amplifiers on Ports A, B and D. The headphone amplifier is
dedicated to these three outputs for increased flexibility, enhanced user experience, and reduced
implementation costs.
The Universal Jack™ feature allows the CODECs to detect when audio devices are plugged in, and
for the CODECs to be reconfigured to support these devices regardless of which port they are
plugged into. SPDIF input sensing is also supported. The fully parametric IDT SoftEQ can be initi-
ated/disabled upon headphone jack insertion/removal for protection of notebook speakers. Note:
The Jack Detect circuit and component selection are critical for accurate detection of audio jacks on
individual ports. Please see the reference design for circuit implementation details.
The STAC9271/74 can operate with a 3.3 V digital supply and a 5 V analog supply.
The STAC9271/74 are available in a 48-pin LQFP Environmental (ROHS) packages.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 20 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
2. CHARACTERISTICS
2.1. Audio Fidelity
2.2. Electrical Specifications
2.2.1. Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the STAC9271/9274. These ratings,
which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the
device at these or any other conditions above those indicated in the operational sections of the specifications is not
implied. Exposure to absolute maximum rating conditions for extended periods can affect product reliability.
Electrical parameters are guaranteed only over the recommended operating temperature range.
2.2.2. Recommended Operation Conditions
DAC SNR: 105dB A-Weighted 5.0 V +/- 5%
ADC SNR: 90dB A-Weighted 5.0 V +/- 5%
Item Pin Maximum Rating
Analog maximum supply voltage AVdd 6 Volts
Digital maximum supply voltage DVdd 5.5 Volts
VREFOUT output current 5 mA
Voltage on any pin relative to ground Vss - 0.3 V to Vdd + 0.3 V
Operating temperature 0oC to +70oC
Storage temperature -55 oC to +125 oC
Soldering temperature
260 oC for 10 seconds *
Soldering temperature information for all available packages
begins on page 225.
Parameter Min. Typ. Max. Units
Power Supply Voltage Digital - 3.3 V 3.135 3.3 3.465 V
Analog - 3.3 V 3.135 3.3 3.465 V
(Note: With Supply Override Enable
Bit set to force 5 V operation.)
Analog - 4 V 3.8 4 4.2 V
Analog - 4.5 V 4.275 4.5 4.725 V
Analog - 5 V 4.75 5 5.25 V
Ambient Operating Temperature 0 +70 °C
Case Temperature Tcase (48-LQFP) +90 °C
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 21 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
ESD: The STAC9271/9274 is an ESD (electrostatic discharge) sensitive device. The human body and test
equipment can accumulate and discharge electrostatic charges up to 4000 Volts without detection. Even though
the STAC9271/9274 implements internal ESD protection circuitry, proper ESD precautions should be followed to
avoid damaging the functionality or performance.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
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IDT CONFIDENTIAL
2.3. STAC9271/74 5 V, 4.5 V, 4.0 V and 3.3 V Analog Performance Characteristics
(Tambient = 25 ºC, AVdd = Supply ± 5%, DVdd = 3.3 V ± 5%, AVss=DVss=0 V; 1 kHz input sine wave; Sample Fre-
quency = 48 kHz; 0 dB = 1 VRMS, 10 KΩ/50 pF load, Testbench Characterization BW: 20 Hz – 20 kHz, 0 dB settings
on all gain stages)
Parameter Conditions AVdd Min Typ Max Unit
Digital to Analog Converters
Resolution All 24 Bits
SNR - DAC to All Line-Out Ports
(Note 4) Analog Mixer Disabled, PCM data
5 V
4.5 V
4.0 V
3.3 V
105
101
100
98
dB
THD+N - DAC to All Line-Out Ports
(Note 3)
Analog Mixer Disabled, -3dB Signal,
PCM data
5 V
4.5 V
4.0 V
3.3 V
90
88
86
84
dB
SNR - DAC to All Line-Out Ports
(Note 4) Analog Mixer Enabled, PCM data
5 V
4.5 V
4.0 V
3.3 V
90
88
87
85
dB
THD+N - DAC to All Line-Out Ports
(Note 3)
Analog Mixer Enabled, -3dB Signal,
PCM data
5 V
4.5 V
4.0 V
3.3 V
80
78
77
75
dB
Dynamic Range: DAC to All Line Out Ports
(Note2) -60dB Signal Level
5 V
4.5 V
4.0 V
3.3 V
-
95
93
92
90
-dB
SNR - DAC to All Headphone Ports
(Note 4)
Analog Mixer Disabled, 10 KΩ load,
PCM data
5 V
4.5 V
4.0 V
3.3 V
105
101
100
98
dB
THD+N - DAC to All Headphone Ports
(Note 3)
Analog Mixer Disabled, -3dB Signal,
10 KΩ load, PCM data
5 V
4.5 V
4.0 V
3.3 V
85
83
82
80
dB
SNR - DAC to All Headphone Ports with 2
Headphone Outputs Operating
(Note 4)
Analog Mixer Disabled, 32 Ω load, PCM
data
5 V
4.5 V
4.0 V
3.3 V
100
98
97
95
dB
THD+N - DAC to All Headphone Ports with 2
Headphone Outputs Operating
(Note 3)
Analog Mixer Disabled, -3dB Signal,
32 Ω load, PCM data
5 V
4.5 V
4.0 V
3.3 V
82
80
79
77
dB
SNR - DAC to All Headphone Ports
(Note 4)
Analog Mixer Disabled, 32 Ω load, PCM
data
5 V
4.5 V
4.0 V
3.3 V
100
98
97
95
dB
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 23 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
THD+N - DAC to All Headphone Ports
(Note 3)
Analog Mixer Disabled, -3dB Signal,
32 Ω load, PCM data
5 V
4.5 V
4.0 V
3.3 V
85
83
82
80
dB
SNR - DAC to All Headphone Ports
(Note 4)
Analog Mixer Enabled, 10 kΩ load, PCM
data
5 V
4.5 V
4.0 V
3.3 V
90
88
87
85
dB
THD+N - DAC to All Headphone Ports
(Note 3)
Analog Mixer Enabled, -3dB Signal,
10 kΩ load, PCM data
5 V
4.5 V
4.0 V
3.3 V
79
77
76
74
dB
SNR - DAC to All Headphone Ports
(Note 4)
Analog Mixer Enabled, 32 Ω load, PCM
data
5 V
4.5 V
4.0 V
3.3 V
87
85
84
82
dB
THD+N - DAC to All Headphone Ports
(Note 3)
Analog Mixer Enabled, -3dB Signal,
32 Ω load, PCM data
5 V
4.5 V
4.0 V
3.3 V
74
72
71
69
dB
Any Analog Input to DAC Crosstalk 10 KHz Signal Frequency All - -85 - dB
Any Analog Input to DAC Crosstalk 1 KHz Signal Frequency All - -80 - dB
Gain Error Analog Mixer Disabled All 0.5 dB
Interchannel Gain Mismatch Analog Mixer Disabled All 0.5 dB
D/A Digital Filter Pass Band (Note 5) All 20 - 19,200 Hz
D/A Digital Filter Transition Band All 19,200 - 28,800 Hz
D/A Digital Filter Stop Band All 28,800 - - Hz
D/A Digital Filter Stop Band Rejcn (Note 6) All -100 - - dB
D/A Out-of-Band Rejection (Note 7) All -55 - - dB
Group Delay (48 KHz sample rate) All - - 1 ms
Attenuation, Gain Step Size DIGITAL All - 0.75 - dB
Gain Drift All - 100 - ppm/ºC
DAC Offset Voltage All - 100 20 mV
Deviation from Linear Phase All - 1 10 deg.
Analog Outputs
Full Scale All Line-Outs DAC PCM Data
5 V
4.5 V
4.0 V
3.3 V
1.00
1.00
1.00
0.70
--Vrms
Full Scale All Line-Outs DAC PCM Data All 2.83 - - Vp-p
All Headphone Capable Outputs 32 Ω load All 31 50 - mW peak
Analog inputs
Parameter Conditions AVdd Min Typ Max Unit
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 24 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Full Scale Input Voltage 0dB Boost @ 4.75 V All 1.00 - - Vrms
All Analog Inputs with boost 10dB Boost All 0.31 - - Vrms
All Analog Inputs with boost 20dB Boost All 0.10 - - Vrms
All Analog Inputs with boost 30dB Boost All 0.03 - - Vrms
All Analog Inputs with boost 40dB Boost All 0.01 - - Vrms
Input Impedance All - 50 - kΩ
Input Capacitance All - 15 - pF
Analog Mixer
SNR - CD to Ports A,B, & D Line-Out
(Note 4) All 90 dB
THD+N - CD to Ports A,B, & D Line-Out
(Note 3) -3dB Input All 70 dB
SNR - All Line-In to A,B, & D Line-Out (Note 4) All 90 dB
THD+N - All Line-In to A,B, & D Line-Out
(Note 3) -3dB Input All 70 dB
SNR - Analog PC Beep to Ports A,B, & D
Line-Out (Note 4) All 85 dB
THD+N - Analog PC Beep to Ports A,B, & D
Line-Out (Note 3) -3dB Input All 70 dB
Analog to Digital Converter
Resolution All 24 Bits
Dynamic Range, All Analog Inputs to A/D
(Note 1)
High Pass Filer Enabled, 1Vrms Input,
No boost All 88 90 dB
SNR All Analog Inputs to A/D (Note 4) High Pass Filter enabled All 88 90 dB
THD+N All Analog Inputs to A/D (Note 3) High Pass Filter enabled,
-3dBV input Level All 85 dB
Analog Frequency Response (Note 2 All 10 - 30,000 Hz
A/D Digital Filter Pass Band (Note 5) All 20 - 19,200 Hz
A/D Digital Filter Transition Band All 19,200 - 28,800 Hz
A/D Digital Filter Stop Band All 28,800 - - Hz
A/D Digital Filter Stop Band Rejection (Note 6) All -100 - - dB
Group Delay (48 KHz sample rate) All - - 1 ms
Any Analog Input to ADC Crosstalk 10 KHz Signal Frequency All - -85 - dB
Any Analog Input to ADC Crosstalk 1 KHz Signal Frequency All - -80 - dB
Spurious Tone Rejection All - -100 - dB
Attenuation, Gain Step Size ANALOG All - 1.5 - dB
Interchannel Gain Mismatch ADC All - - 0.5 dB
Noise Floor when 40dB Mic Boost Enabled All 0.01 mV
40dB Mic Boost Enabled SNR 5 mV Input All 60 dB
Parameter Conditions AVdd Min Typ Max Unit
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1. Ratio of Full Scale signal to noise output with -60dB signal, measured “A weighted” over a 20 Hz to a 20 KHz
bandwidth.
2. ± 3dB limits for Line Output and 0dB gain, at -20dBV
3. Amplitude of THD+N, measured with A-weighting filter, over 20 Hz to 20 KHz bandwidth.
4. Ratio of Full Scale signal to idle channel noise output is measured “A weighted” over a 20 Hz to a 20 KHz
bandwidth. (AES17-1991 Idle Channel Noise or EIAJ CP-307 Signal-to-noise Ratio.)
5. Peak-to-Peak Ripple over Passband meets ± 0.25dB limits, 48 KHz Sample Frequency.
6. Stop Band rejection determines filter requirements. Out-of-Band rejection determines audible noise.
7. The integrated Out-of-Band noise generated by the DAC process, during normal PCM audio playback, over a
bandwidth 28.8 KHz to 100 KHz, with respect to a 1 Vrms DAC output.
8. Can be set to 0.5 or 0.8 AVdd.
40dB Mic Boost Enabled THD+N 5 mV Input All 55 dB
Power Supply
Power Supply Rejection Ratio 1 KHz All - -70 - dB
Power Supply Rejection Ratio 20 KHz All - -40 - dB
D0 Didd 3.3 V 75 90 mA
D0 Aidd 5.0 V, 4.5 V, & 4.0 V, 3.3 V 85 mA
D1 Didd 3.3 V 75 90 mA
D1 Aidd 5.0 V, 4.5 V, & 4.0 V, 3.3 V 85 mA
D2 Didd 3.3 V 23 30 mA
D2 Aidd 5.0 V, 4.5 V, & 4.0 V, 3.3 V 58 mA
D3 Didd 3.3 V 23 30 mA
D3 Aidd 5.0 V, 4.5 V, & 4.0 V, 3.3 V 37 mA
One Stereo ADC Didd 3.3 V 8 10 mA
One Stereo ADC Aidd 5.0 V, 4.5 V, & 4.0 V, 3.3 V 10 mA
One Stereo DAC Didd 3.3 V 3 5 mA
One Stereo DAC Aidd 5.0 V, 4.5 V, & 4.0 V, 3.3 V 2 mA
CD Input
CD Common Mode Rejection (CMR) All 50 55 dB
Voltage Reference Outputs
VREFout (Note 8) All - 0.5 X
AVdd -V
VREFILT (VAG) All 0.45X
AVdd V
Phased Locked Loop
PLL lock time All 96 200 μsec
PLL (or Azalia Bit CLK) 24 MHz clock jitter All 150 500 psec
Parameter Conditions AVdd Min Typ Max Unit
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3. DETAILED DESCRIPTION
3.1. Universal JacksTM
IDT’s Universal JacksTM technology allows for the greatest flexibility in board design and implemen-
tation.
• Ports A, B, and D support2:
• Headphone Out
• Line Out
• Line In
• Mic with 0/10/20/30/40 dB Mic boost3
• Ports C, E, F, G, H support2:
• Line Out
• Line In
• Mic with 0/10/20/30/40 dB Mic boost3
• Ports G & H do not have VrefOut Support
Note1: Only one function can be selected on each pin pair at a time. For example, a pin pair cannot
be configured as an input and output at the same time. Configuration can be changed at any time.
Note2: Three Headphones should not be used simultaneously. Performance degradation will occur
when using 2 Headphones simultaneously. See electrical specs for details.
Note3: When the 40dB mic boost feature is enabled, additional gain increases greater than 6dB may
result in significant audio quality degradation of the microphone audio input. In particular, when the
40dB MIC boost is active, the SNR, THD+N and DC offset will significantly degrade regardless of the
input signal level.
3.1.1. Audio Jack Presence Detect
SENSE_A pin is used to detect the presence of plugs in ports A, B, C, and D. SENSE_B pin is used
to detect the presence of plugs in ports E, F, G, ad H. Refer to the reference design for port detect
circuitry. Select the precision of the resistors used as follows:
Table 1. Impedance Sense
Impedance Sense is accomplished by on-chip circuitry that measures the impedance at the pin of
the chip and compares it to internal reference impedance. Below is a table that contains the bin infor-
mation and codes returned when the pin widget impedance field in the Port Pin Sense widget is
read. Please note that even under the best conditions, there is no method to guarantee 100%
impedance sensing due to variations in external circuitry and impedance overlap of devices that can
be plugged into a jack. The impedance sense table reflects both standard Line Out and Headphone
AVDD Nominal
Voltage (+-5%)
Resistor Tolerance
Sense A
(If Port D is used)
Resistor Tolerance
Sense A
(If Port D is not used)
Resistor Tolerance
Sense B
(If Port H is used)
Resistor Tolerance
Sense B
(If Port H is not used)
5V 1% 1% 1% 1%
4.5V 1% 1% 1% 1%
4V 0.50% 1% 0.50% 1%
3.3V 0.10% 1% 0.10% 1%
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output drivers. Please reference the HD Audio Universal Jack Application Note on the IDT Extranet
for more information.
3.2. SPDIF Input
SPDIF IN can operate at 44.1 KHz, 48 KHz or 96 KHz and implements internal Jack Detect.
A sophisticated digital PLL allows automatic rate detection and accurate data recovery. The ability to
accept consumer SPDIF voltage levels directly eliminates the need for costly external receiver ICs.
Advanced features such as record slot select and SPDIF_IN routing to the DAC allows for simulta-
neous record and play.
Table 2: Impedance Sense
Bins Return Hex Code Impedance Level (Ohms) General Device Detected
000b 0064h Impedance < 300 Passive Speakers, Headset Speakers
001b 012Ch Impedance = 300 +/- 25% Some Headset Speakers
010b 028Ah 300 > Impedance < 1275 Some Microphones
011b 03E8h Impedance = 1275 +/- 25% Microphones
100b 07D0h 1275 > Impedance < 2000 Microphones
101b 0BB8h Impedance = 2000 +/- 25% Amplified Speakers
110b 2710h > 2000 Amplified Speakers, Line In
111b 2710h > 2000 Amplified Speakers, Line In
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3.3. SPDIF Output
SPDIF Ouput can operate at 44.1 KHz, 48 KHz, 88.2 KHz and 96 KHz, as defined in the Intel High
Definition Audio Specification, with resolutions up to 24 bits. This insures compatibility with all con-
sumer audio gear and allows for convenient integration into home theater systems and media center
PCs.
3.4. ADAT® Output (STAC9274)
ADAT®, or “Lightpipe” is available on the STAC9274. ADAT® is a single bit stream optical digital
interface for up to 8 channels of uncompressed 24-bit data. Sample rates up to 192 KHz are sup-
ported for 2 channels, up to 96 KHz for 4 channels, or up to 48 KHz for 8 channels.
3.5. Digital Microphone Support (STAC9274)
The digital microphone interface permits connection of a digital microphone(s) to the STAC9274 via
the DMIC0, DMIC1, and DMIC_CLK 3-pin interface. The DMIC0 and DMIC1 signals are inputs that
carry individual channels of digital Mic data to the codec. In the event that a single microphone is
used, the data is routed to both ADC channels.
The DMIC_CLK output is programmable from 1.176 MHz to 4.704 MHz in 1.176 MHz increments
and is synchronous to the 24 MHz internal clock. The default frequency is 2.352 MHz.
Note: Some Digital Microphone implementations support data on either edge, therefore, an
external mux may not be required.
The STAC9274 supports the digital microphone configurations described in Tables 3 and 4, and
shown in Figures 1, 2 and 3, below.
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Table 3. Valid Digital Microphone Configurations
Digital Mics Date Sample ADC Conn. Notes
0 N/A N/A No Digital Microphones
1 Single Edge 0, 1, or 2
Available on either DMIC_0 or DMIC_1
Both ADC Channels produce data, may be in phase or out by
1/2 DMIC_CLK period depending upon external configuration
and timing
2
Double Edge
on either
DMIC_0 or 1
OR
Single Edge on
DMIC_0 and 1
0, 1, or 2
Available on either DMIC_0 or DMIC_1, External logic
required to support sampling on a single Digital Mic pin
channel on rising edge and second Digital Mic right channel
on falling edge of DMIC_CLK for those digital microphones
that don’t support alternative clock edge capability. If both
DMIC_0 and DMIC_1 are used to support 2 digital
microphones, 2 separate ADC units will be used, however,
this configuration is not recommended since it consumes two
stereo ADC resources.
3
Double Edge
on one DMIC
pin and Single
Edge on the
second DMIC
pin.
0, 1, or 2
Requires both DMIC_0 or DMIC_1, External logic required to
support sampling on a single Digital Mic pin channel on rising
edge and second Digital Mic right channel on falling edge of
DMIC_CLK for those digital microphones that don’t support
alternative clock edge capability. Two ADC units are required
to support this configuration
4 Double Edge 0, 1, or 2
Connected to DMIC_0 and DMIC_1, External logic required
to support sampling on a single Digital Mic pin channel on
rising edge and second Digital Mic right channel on falling
edge of DMIC_CLK for those digital microphones that don’t
support alternative clock edge capability. Two ADC units are
required to support this configuration
Table 4. DMIC_CLK and DMIC_0,1 Operation During Power States
Power State DMIC Widget
Enabled?
DMIC_CLK
Output DMIC_0,1 Notes
D0 Yes Clock Capable Input Capable
DMIC_CLK Output is Enabled when either
DMIC_0 or DMIC_1 Input Widget is Enabled.
Otherwise, the DMIC_CLK remains Low
D1 Yes Clock Capable Input Capable
DMIC_CLK Output is Enabled when either
DMIC_0 or DMIC_1 Input Widget is Enabled.
Otherwise, the DMIC_CLK remains Low
D2 Yes Clock Disabled Input Disabled DMIC_CLK Remains Low
D3 Yes Clock Disabled Input Disabled DMIC_CLK Remains Low
D0-D3 No Clock Disabled Input Disabled DMIC_CLK is HIGH-Z with Weak Pull-down
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Figure 1. Single Digital Microphone (data is ported to both left and right channels)
Figure 2. Stereo Digital Microphone Configuration
Digital
Microphone DMIC_0
OR
DMIC_1
DMIC_CLK
STEREO
ADC0, 1 or 2
PCM
MUX
Single Line In
Stereo Channels
Output
Pin
DMIC_0
Or
DMIC_1
DMIC_CLK
Right
Channel
Left
Channel
Valid Data Valid Data+1
On-Chip
Multiplexer
Pin
On-ChipOff-Chip
DQ
CK
Digital
Microphones
DMIC_CLK
STEREO
ADC0, 1 or 2
PCM
MUX
Stereo Channels
Output
Pin
DMIC_CLK
Valid R
Data
MUX
Pin
Valid L
Data
External
Multiplexer On-Chip
Multiplexer
On-Chip
Off-Chip
Right
Channel
Left
Channel
DMIC_0
Or
DMIC_1
DMIC_0
OR
DMIC_1
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Figure 3. Quad Digital Microphone Configuration
Note: Some Digital Microphone Implementations support data on either edge, therefore, the
external mux may not be required.
Digital
Microphones
DMIC_0
DMIC_CLK
STEREO
ADC0
PCM
MUX
Stereo Channels
Output For
DMIC_0 L & R
Pin
DMIC_1
DMIC_CLK
Valid
Data R1
MUX
Pin
Valid
Data L1
DMIC_1
STEREO
ADC1
PCM
MUX
Stereo Channels
Output For
DMIC_1 L & R
Pin
MUX
Valid
Data R0
Valid
Data L0
DMIC_0
External
Multiplexer
External
Multiplexer
On-Chip
Multiplexer
On-Chip
Multiplexer
On-Chip
Off-Chip
Note: Valid ADC
Pairs include:
ADC0/ADC1,
ADC0/ADC2,
ADC1/ADC2
Valid
Data R1
Valid
Data L1
Valid
Data R0
Valid
Data L0
Right
Channel
Left
Channel
Right
Channel
Left
Channel
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3.6. Analog PC-Beep
Analog PC-Beep is not supported during Link Reset.
3.7. Headphone Drivers (Restrictions)
Three headphones should not be used simultaneously. Performance degradation will occur when
using two headphones simultaneously. See electrical specifications for details.
3.8. Device IDs
Note: SVID’s, SSID’s and Assembly ID’s are read/writable by BIOS. All other ID fields are
read-only.
Note: MS refers to Master Studio and HT/SR refers to Home Theater/Sound Room
Table 5. CODEC IDs
Part
Number
DAC
SNR
dB
VID DID Rev
ID
Step
ID SSID* Assm
ID* Dolby Mic ADAT Vol or
DMIC
9274 105 8384h 7620h 01h 01h 000001h 00h No Yes Yes Selectable
9274D 105 8384h 7621h 01h 01h 000001h 00h MS Yes Yes Selectable
9271X 105 8384h 7626h 01h 01h 000001h 00h No No Yes Selectable
9271D 105 8384h 7627h 01h 01h 000001h 00h HT/SR No Yes Selectable
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4. FUNCTIONAL BLOCK DIAGRAMS
4.1. STAC9274
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4.2. STAC9271
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5. WIDGET DIAGRAM
DAC0
Azalia
Link
NID=02h
VOLUME
MUTE
NID=1Bh
DAC1
NID=03h
NID=1Ch
NID=0Ah
NID=0Bh
NID=0Ch
NID=0Dh
NID=0Eh
NID=0Fh
NID=10h
NID=11h
DAC2
NID=04h
DAC3
NID=05h
DAC4
NID=06h
ADC0
NID=07h
ADC1
NID=08h
ADC2
NID=09h
SPDIF
IN
NID=20h
SPDIF
OUT
NID=1Eh
DMIC0
NID=13h
DMIC1
NID=14h
NID=21h
DIGIN
NID=22h
NID=15h
NID=16h
NID=17h
PCBEEP
NID=23h
CD
NID=12h
ADAT
OUT
NID=1Fh
VOLUME
KNOB
NID=24h
INPORT0
VOL
NID=18h
INPORT1
VOL
NID=19h
INPORT2
VOL
NID=1Ah
NID=1Dh
PortC
PortD
PortE
PortF
PortG
PortH
VOLUME
MUTE
VOLUME
MUTE
VOLUME
MUTE
VOLUME
MUTE
ADC0
MUX
ADC1
MUX
ADC2
MUX
INPORT0
MUX
VOLUME
INPORT1
MUX
VOLUME
INPORT2
MUX
VOLUME
PortB
PortA
DIGOUT
0
ADC0MUX
ADC1MUX
ADC1MUX
ADC0MUX
DAC0
DAC0
DAC0
DAC1
DAC1
DAC2
DAC2
DAC1
DAC1
DAC3
DAC4
DAC4
A
B
C
D
E
F
G
H
CD
A
B
C
D
E
F
G
H
CD
A
B
C
D
E
F
G
H
CD
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5.1. Pin Configuration Default Register Settings
The following table shows the Pin Widget Configuration Default settings.
Table 6. Pin Configuration Default Settings
Pin Name Port Location Device Connection Color Misc Assoc. Seq
DigInPin Not Connected
01b
Mainboard
Rear
1h
SPDIF In
Ch
RCA
4h
Gray
2h Jack Detect Overide =1 9h 0h
DigOutPin Connect to Jack
00b
Mainboard
Rear
1h
SPDIF Out
4h
RCA
4h
Gray
2h Jack Detect Overide=0 7h 0h
PortAPin Connect to Jack
00b
Mainboard
Front
2h
HP Out
2h
1/8 inch Jack
1h
Green
4h Jack Detect Overide=0 2h 0h
PortBPin Connect to Jack
00b
Mainboard
Front
2ht
Mic In
Ah
1/8 inch Jack
1h
Pink
9h Jack Detect Overide=0 8h 0h
PortCPin Connect to Jack
00b
Mainboard
Rear
1h
Line In
8h
1/8 inch Jack
1h
Blue
3h Jack Detect Overide=0 4h Eh
PortDPin Connect to Jack
00b
Mainboard
Rear
1h
Line Out
0h
1/8 inch Jack
1h
Green
4h Jack Detect Overide=0 1h 0h
PortEPin Connect to Jack
00b
Mainboard
Rear
1h
Mic In
Ah
1/8 inch Jack
1h
Pink
9h Jack Detect Overide=0 4h 0h
PortFPin Connect to Jack
00b
Mainboard
Rear
1h
Line Out
0h
1/8 inch Jack
1h
Black
1h Jack Detect Overide=0 1h 2h
PortGPin Connect to Jack
00b
Mainboard
Rear
1h
Line Out
0h
1/8 inch Jack
1h
Orange
6h Jack Detect Overide=0 1h 1h
PortHPin Connect to Jack
00b
Mainboard
Rear
1h
Line Out
0h
1/8 inch Jack
1h
Gray
2h Jack Detect Overide=0 1h Fh
CDPin Not Connected
01b
Internal
01000b
CD
3h
ATAPI Internal
3h
Unknown
0h Jack Detect Overide=1 Fh 0h
DigMicPin Not Connected
01b
Internal
01000b
Mic In
Ah
Unknown
0h
Unknown
0h Jack Detect Overide=1 Fh 0h
DigMicPin Not Connected
01b
Internal
01000b
Mic In
Ah
Unknown
0h
Unknown
0h Jack Detect Overide=1 Fh 0h
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6. WIDGET INFORMATION
Table 7. High Definition Audio Widget
ID Widget Name Description
00h Root Root Node
01h Audio Function Group Audio Function Group
02h DAC0 Stereo Output Converter to DAC
03h DAC1 Stereo Output Converter to DAC
04h DAC2 Stereo Output Converter to DAC
05h DAC3 Stereo Output Converter to DAC
06h DAC4 Stereo Output Converter to DAC
07h ADC0 Stereo Input Converter to ADC
08h ADC1 Stereo Input Converter to ADC
09h ADC2 Stereo Input Converter to ADC
0Ah Port A Port A Pin Widget (Configurable as HP, Line In, Line Out, Mic)
0Bh Port B Port B Pin Widget (Configurable as HP, Line In, Line Out, Mic)
0Ch Port C Port C Pin Widget (Configurable as Line In, Line Out, Mic)
0Dh Port D Port D Pin Widget (Configurable as HP, Line In, Line Out, Mic)
0Eh Port E Port E Pin Widget (Configurable as Line In, Line Out, Mic)
0Fh Port F Port F Pin Widget (Configurable as Line In, Line Out, Mic)
10h Port G Port G Pin Widget (Configurable as Line In, Line Out, Mic)
11h Port H Port H Pin Widget (Configurable as Line In, Line Out, Mic)
12h CD CD Pin Widget
13h DigMic0 Digital Microphone 0 Pin Widget
14h DigMic1 Digital Microphone 1 Pin Widget
15h InPort0Mux ADC0 Input Port Mux
16h InPort1Mux ADC1 Input Port Mux
17h InPort2Mux ADC2 Input Port Mux
18h InPort0Vol ADC0 Input Port Volume
19h InPort1Vol ADC1 Input Port Volume
1Ah InPort2Vol ADC2 Input Port Volume
1Bh ADC0Mux ADC0 Mux
1Ch ADC1Mux ADC1 Mux
1Dh ADC2Mux ADC2 Mux
1Eh SPDIF_OUT Stereo Output for SPDIF_Out
1Fh ADATOut ADAT Out for STAC9274, RSVD on STAC9271
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20h SPDIF_IN Stereo Input for SPDIF_In
21h DigOut Digital Output Pin
22h DigIn Digital Microphone Input Pin
23h PCBEEP Digital PC Beep
24h VolumeKnob Master Volume Controls
Table 7. High Definition Audio Widget
ID Widget Name Description
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6.1. Root Node (NID = 0x00)
6.1.1. Root ID
6.1.2. Root RevID
Table 8. Root ID Command Verb Format
Verb ID Payload Response
Get F00 00 See bitfield table.
Table 9. Root ID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Vendor R0x8384 Vendor ID.
[15.:8] DeviceFix R0x76 Fixed portion of Device ID.
[7.:0] DeviceProg R0x10 Dependent of device- See device ID table in
section 5.8.
Table 10. Root RevID Command Verb Format
Verb ID Payload Response
Get F00 02 See bitfield table.
Table 11. Root RevID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd R0x00 Reserved
[23.:20] Major R0x1 Major rev number of compliant Azalia spec.
[19.:16] Minor R0x0 Minor rev number of compliant Azalia spec.
[15.:12] VendorFix R0x0 Fixed portion of Vendor's rev number for this device.
[11.:8] VendorProg R0x1 Vendor's rev number for this device.
[7.:4] SteppingFix R0x0 Fixed portion of vendor stepping number within the
Vendor RevID.
[3.:0] SteppingProg R0x1 vendor stepping number within the Vendor RevID.
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6.1.3. Root NodeInfo
6.2. AFG Node (NID = 0x01)
6.2.1. AFG Reset
Table 12. Root NodeInfo Command Verb Format
Verb ID Payload Response
Get F00 04 See bitfield table.
Table 13. Root NodeInfo Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x00 Reserved
[23.:16] StartNID R0x01 Starting node number (NID) of first function group
[15.:8] Rsvd1 R0x00 Reserved
[7.:0] TotalNodes R0x01 Total number of nodes
Table 14. AFG Reset Command Verb Format
Verb ID Payload Response
Get 7FF 00 See bitfield table.
Set1 7FF See bits [7:0] of bitfield table. 0000_0000h
Table 15. AFG Reset Command Response Format
Bit Bitfield Name RW Reset Description
[31.:0] Response R0x0 Reserved. Overlaps Execute.
[0] Execute W0x0
Function Reset. Function Group reset is
executed when the Set verb 7FF is written
with 8-bit payload of 00h. The CODEC
should issue a response to acknowledge
receipt of the verb, and then reset the
affected Function Group and all associated
widgets to their power-on reset values.
Some controls such as Configuration
Default controls should not be reset.
Overlaps Response.
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6.2.2. AFG NodeInfo
6.2.3. AFG Type
6.2.4. AFG Type
Table 16. AFG NodeInfo Command Verb Format
Verb ID Payload Response
Get F00 04 See bitfield table.
Table 17. AFG NodeInfo Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:16] StartNID R0x2 Starting node number for function group
subordinate nodes.
[15.:8] Rsvd1 R0x0 Reserved
[7.:0] TotalNodes R0x23 Total number of nodes.
Table 18. AFG Type Command Verb Format
Verb ID Payload Response
Get F00 05 See bitfield table.
Table 19. AFG Type Command Response Format
Bit Bitfield Name RW Reset Description
[31.:9] Rsvd R0x0 Reserved
[8] UnSol R0x1
This node is capable of generating an
unsolicited response, and will respond to
the Unsolicited Response verb (Verb ID
708h).
[7.:0] NodeType R0x01 Node type = Audio Function Group
Table 20. AFG Cap Command Verb Format
Verb ID Payload Response
Get F00 08 See bitfield table.
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6.2.5. AFG PCMCap
Table 21. AFG Cap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd3 R0x0 Reserved
[16] BeepGen R0x1 Optional Beep Generator is present
[15.:12] Rsvd2 R0x0 Reserved
[11.:8] InputDelay R0xD
Typical latency = 13 frames. Number of
samples between when the sample is
received as an analog signal at the pin and
when the digital representation is
transmitted on the Azalia link.
[7.:4] Rsvd1 R0x0 Reserved
[3.:0] OutputDelay R0xD
Typical latency = 13 frames. Number of
samples between when the signal is
received from the Azalia link and when it
appears as an analog signal at the pin.
Table 22. AFG PCMCap Command Verb Format
Verb ID Payload Response
Get F00 0A See bitfield table.
Table 23. AFG PCMCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:21] Rsvd2 R0x0 Reserved
[20] B32 R0x0 32 bit audio formats are NOT supported
[19] B24 R0x1 24 bit audio formats are supported
[18] B20 R0x1 20 bit audio formats are supported
[17] B16 R0x1 16 bit audio formats are supported
[16] B8 R0x0 8 bit audio formats are NOT supported
[15.:12] Rsvd1 R0x0 Reserved
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6.2.6. AFG Stream
[11] R12 R0x0 384 KHz rate (8/1*48 KHz) NOT supported
[10] R11 R0x1 192.0 KHz rate (4/1*48 KHz) supported
[9] R10 R0x1 176.4 KHz rate (4/1*44.1 KHz) supported
[8] R9 R0x1 96.0 KHz rate (2/1*48 KHz) supported
[7] R8 R0x1 88.2 KHz rate (2/1*44.1 KHz) supported
[6] R7 R0x1 48.0 KHz rate supported (REQUIRED)
[5] R6 R0x1 44.1 KHz rate supported
[4] R5 R0x0 32.0 KHz rate (2/3*48 KHz) supported
[3] R4 R0x0 22.05 KHz rate (1/2*44.1 KHz) supported
[2] R3 R0x0 16.0 KHz rate (1/3*48 KHz) supported
[1] R2 R0x0 11.025 KHz rate (1/4*44.0 KHz) supported
[0] R1 R0x0 8.0 KHz rate (1/6*48 KHz) supported
Table 24. AFG Stream Command Verb Format
Verb ID Payload Response
Get F00 0B See bitfield table.
Table 25. AFG Stream Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd R0x0 Reserved
[2] NonPCM R0x0 No support for non-PCM data.
[1] Float32 R0x0 No support for Float32 data.
[0] PCM R0x1 PCM-formatted data supported.
Table 23. AFG PCMCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.7. AFG InAmpCap
6.2.8. AFG SupPwrState
Table 26. AFG InAmpCap Command Verb Format
Verb ID Payload Response
Get F00 0D See bitfield table.
Table 27. AFG InAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x0 No mute capability
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x5 Size of each step in the gain range = 1.5dB
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x0E Number of steps in the gain range = 15 (0dB
to 22.5 dB)
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x00 0dB-step is programmed with this offset
Table 28. AFG SupPwrState Command Verb Format
Verb ID Payload Response
Get F00 0F See bitfield table.
Table 29. AFG SupPwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd R0x0 Reserved
[3] D3Sup R0x1
Power State D3 is supported. Allows for lowest possible
power consuming state under software control (and still
properly respond to a subsequent Power State command).
[2] D2Sup R0x1
Power State D2 is supported. Allows for lowest possible
power consuming state from which it can return to fully on
state within 10 ms.
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6.2.9. AFG GPIOCnt
[1] D1Sup R0x1
Power State D1 is supported. Allows for lowest possible
power consuming state from which it can return to fully on
state within 10ms, excepting analog pass-through circuits
which must remain fully on.
[0] D0Sup R0x1 Power State D0 is supported. Node power state is fully on.
Table 30. AFG GPIOCnt Command Verb Format
Verb ID Payload Response
Get F00 11 See bitfield table.
Table 31. AFG GPIOCnt Command Response Format
Bit Bitfield Name RW Reset Description
[31] GPIWake R0x1
Wake capability. Assuming the Wake Enable
Mask controls are enabled, GPIO's configured
as inputs can cause a wake (generate a
Status Change event on the link) when there
is a change in level on the pin.
[30] GPIUnsol R0x1
Unsolicited Response capability. Assuming
the Unsolicited Enable Mask controls are
enabled, GPIO's configured as inputs can
generate an Unsolicited Response on the link
when there is a change in level on the pin.
[29.:24] Rsvd R0x0 Reserved
[23.:16] NumGPIs R0x00 Number of GPI pins supported by function
[15.:8] NumGPOs R0x00 Number of GPO pins supported by function
[7.:0] NumGPIOs R0x03 = 48 pin Number of GPIO pins supported by function
Table 29. AFG SupPwrState Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.10. AFG OutAmpCap
6.2.11. AFG PwrState
Table 32. AFG OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
Table 33. AFG OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x1 Amplifier is capable of muting
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x02 Size of each step in the gain range = 0.75dB
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x7F Number of steps in the gain range = 128
(-96dB to +0dB)
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x7F 0dB-step is programmed with this offset
Table 34. AFG PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 35. AFG PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x2 PS-Act: Actual power state of referenced node.
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6.2.12. AFG UnsolResp
6.2.13. AFG GPIO
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x2
PS-Set: Current power setting of referenced
node.
0: All Powered-On
1: D1 => PR0, PR1
2: D2 => PR0,PR1, PR2,PR6,EAPD
3: D3 => PR6,PR5,PR3,PR2,PR1,PR0,EAPD
Note: PR4 is not mapped in Azalia
Table 36. AFG UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
Table 37. AFG UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] En RW 0x0 Allow generation of Unsolicited Responses.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x0
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 38. AFG GPIO Command Verb Format
Verb ID Payload Response
Get F15 00 See bitfield table.
Set1 715 See bits [7:0] of bitfield table. 0000_0000h
Table 35. AFG PwrState Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.14. AFG GPIOEn
Table 39. AFG GPIO Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] Data4 RW 0x0
Data for GPIO4. If this GPIO bit is
configured as Sticky (edge-sensitive) input,
it can be cleared by writing zero (one) here
when the corresponding Polarity Control bit
is zero (one).
[3] Data3 RW 0x0
Data for GPIO3. If this GPIO bit is
configured as Sticky (edge-sensitive) input,
it can be cleared by writing zero (one) here
when the corresponding Polarity Control bit
is zero (one).
[2] Data2 RW 0x0
Data for GPIO2. If this GPIO bit is
configured as Sticky (edge-sensitive) input,
it can be cleared by writing zero (one) here
when the corresponding Polarity Control bit
is zero (one).
[1] Data1 RW 0x0
Data for GPIO1. If this GPIO bit is
configured as Sticky (edge-sensitive) input,
it can be cleared by writing zero (one) here
when the corresponding Polarity Control bit
is zero (one).
[0] Data0 RW 0x0
Data for GPIO0. If this GPIO bit is
configured as Sticky (edge-sensitive) input,
it can be cleared by writing zero (one) here
when the corresponding Polarity Control bit
is zero (one).
Table 40. AFG GPIOEn Command Verb Format
Verb ID Payload Response
Get F16 00 See bitfield table.
Set1 716 See bits [7:0] of bitfield table. 0000_0000h
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6.2.15. AFG GPIODir
Table 41. AFG GPIOEn Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] Mask4 RW 0x0
Enable for GPIO4:
0= pin is disabled (Hi-Z state);
1= pin is enabled; behavior determined by
GPIO Direction control
[3] Mask3 RW 0x0
Enable for GPIO3:
0= pin is disabled (Hi-Z state);
1= pin is enabled; behavior determined by
GPIO Direction control
[2] Mask2 RW 0x0
Enable for GPIO2:
0= pin is disabled (Hi-Z state);
1= pin is enabled; behavior determined by
GPIO Direction control
[1] Mask1 RW 0x0
Enable for GPIO1:
0= pin is disabled (Hi-Z state);
1= pin is enabled; behavior determined by
GPIO Direction control
[0] Mask0 RW 0x0
Enable for GPIO0:
0= pin is disabled (Hi-Z state);
1= pin is enabled; behavior determined by
GPIO Direction control
Table 42. AFG GPIODir Command Verb Format
Verb ID Payload Response
Get F17 00 See bitfield table.
Set1 717 See bits [7:0] of bitfield table. 0000_0000h
Table 43. AFG GPIODir Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] Control4 RW 0x0
Direction control for GPIO4
0= GPIO signal is configured as input
1= GPIO signal is configured as output
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6.2.16. AFG GPIOWakeEn
[3] Control3 RW 0x0
Direction control for GPIO3
0= GPIO signal is configured as input
1= GPIO signal is configured as output
[2] Control2 RW 0x0
Direction control for GPIO2
0= GPIO signal is configured as input
1= GPIO signal is configured as output
[1] Control1 RW 0x0
Direction control for GPIO1
0= GPIO signal is configured as input
1= GPIO signal is configured as output
[0] Control0 RW 0x0
Direction control for GPIO0
0= GPIO signal is configured as input
1= GPIO signal is configured as output
Table 44. AFG GPIOWakeEn Command Verb Format
Verb ID Payload Response
Get F18 00 See bitfield table.
Set1 718 See bits [7:0] of bitfield table. 0000_0000h
Table 45. AFG GPIOWakeEn Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] W4 RW 0x0
Wake enable for GPIO4:
0 = wake-up event is disabled;
1= when Azalia link is powered down (RST#
is asserted), a wake-up event will trigger a
Status Change Request event on the link.
[3] W3 RW 0x0
Wake enable for GPIO3:
0 = wake-up event is disabled;
1= when Azalia link is powered down (RST#
is asserted), a wake-up event will trigger a
Status Change Request event on the link.
Table 43. AFG GPIODir Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.17. AFG GPIOUnsol
[2] W2 RW 0x0
Wake enable for GPIO2:
0 = wake-up event is disabled;
1= when Azalia link is powered down (RST#
is asserted), a wake-up event will trigger a
Status Change Request event on the link.
[1] W1 RW 0x0
Wake enable for GPIO1:
0 = wake-up event is disabled;
1= when Azalia link is powered down (RST#
is asserted), a wake-up event will trigger a
Status Change Request event on the link.
[0] W0 RW 0x0
Wake enable for GPIO0:
0 = wake-up event is disabled;
1= when Azalia link is powered down (RST#
is asserted), a wake-up event will trigger a
Status Change Request event on the link.
Table 46. AFG GPIOUnsol Command Verb Format
Verb ID Payload Response
Get F19 00 See bitfield table.
Set1 719 See bits [7:0] of bitfield table. 0000_0000h
Table 47. AFG GPIOUnsol Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] EnMask4 RW 0x0
Unsolicited enable mask for GPIO4. If set,
and the Unsolicited Response control for
this widget has been enabled, an unsolicited
response will be sent when GPIO0 is
configured as input and changes state.
[3] EnMask3 RW 0x0
Unsolicited enable mask for GPIO3. If set,
and the Unsolicited Response control for
this widget has been enabled, an unsolicited
response will be sent when GPIO0 is
configured as input and changes state.
Table 45. AFG GPIOWakeEn Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.18. AFG GPIOSticky
[2] EnMask2 RW 0x0
Unsolicited enable mask for GPIO2. If set,
and the Unsolicited Response control for
this widget has been enabled, an unsolicited
response will be sent when GPIO0 is
configured as input and changes state.
[1] EnMask1 RW 0x0
Unsolicited enable mask for GPIO1. If set,
and the Unsolicited Response control for
this widget has been enabled, an unsolicited
response will be sent when GPIO0 is
configured as input and changes state.
[0] EnMask0 RW 0x0
Unsolicited enable mask for GPIO0. If set,
and the Unsolicited Response control for
this widget has been enabled, an unsolicited
response will be sent when GPIO0 is
configured as input and changes state.
Table 48. AFG GPIOSticky Command Verb Format
Verb ID Payload Response
Get F1A 00 See bitfield table.
Set1 71A See bits [7:0] of bitfield table. 0000_0000h
Table 49. AFG GPIOSticky Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] Mask4 RW 0x0
GPIO4 input type (when configured as
input):
0= Non-Sticky (level-sensitive);
1= Sticky (edge-sensitive). Sticky inputs are
cleared by writing zero to corresponding bit
of GPIO Data register. GPIOPolarity
determines rising or falling edge sensitivity.
Table 47. AFG GPIOUnsol Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.19. AFG SubID
[3] Mask3 RW 0x0
GPIO3 input type (when configured as
input):
0= Non-Sticky (level-sensitive);
1= Sticky (edge-sensitive). Sticky inputs are
cleared by writing zero to corresponding bit
of GPIO Data register. GPIOPolarity
determines rising or falling edge sensitivity.
[2] Mask2 RW 0x0
GPIO2 input type (when configured as
input):
0= Non-Sticky (level-sensitive);
1= Sticky (edge-sensitive). Sticky inputs are
cleared by writing zero to corresponding bit
of GPIO Data register. GPIOPolarity
determines rising or falling edge sensitivity.
[1] Mask1 RW 0x0
GPIO1 input type (when configured as
input):
0= Non-Sticky (level-sensitive);
1= Sticky (edge-sensitive). Sticky inputs are
cleared by writing zero to corresponding bit
of GPIO Data register. GPIOPolarity
determines rising or falling edge sensitivity.
[0] Mask0 RW 0x0
GPIO0 input type (when configured as
input):
0= Non-Sticky (level-sensitive);
1= Sticky (edge-sensitive). Sticky inputs are
cleared by writing zero to corresponding bit
of GPIO Data register. GPIOPolarity
determines rising or falling edge sensitivity.
Table 50. AFG SubID Command Verb Format
Verb ID Payload Response
Get F20 00 See bitfield table.
Set1 720 See bits [7:0] of bitfield table. 0000_0000h
Set2 721 See bits [7:0] of bitfield table. 0000_0000h
Set3 722 See bits [7:0] of bitfield table. 0000_0000h
Set4 723 See bits [7:0] of bitfield table. 0000_0000h
Table 49. AFG GPIOSticky Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.20. AFG TCKT
6.2.21. AFG Sply
Table 51. AFG SubID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Subsys3 RW 0x00 Subsystem ID. (Any non-zero value)
[23.:16] Subsys2 RW 0x00
[15.:8] Subsys1 RW 0x01
[7.:0] Assembly RW 0x00 Assembly ID. (Not applicable to CODEC vendors)
Table 52. AFG TCKT Command Verb Format
Verb ID Payload Response
Get FE5 00 See bitfield table.
Set1 7E5 See bits [7:0] of bitfield table. 0000_0000h
Table 53. AFG TCKT Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] AnaD3Enable RW 0x0 D3 enable signal for analog
[6.:0] TCKT RW 0x0 Test circuit (default reset on) TBD [6:0]
Table 54. AFG Sply Command Verb Format
Verb ID Payload Response
Get FE6 00 See bitfield table.
Set1 7E6 See bits [7:0] of bitfield table. 0000_0000h
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6.2.22. AFG DACMode
Table 55. AFG Sply Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd R0x0 Reserved
[6.:5] IBIAS RW 0x0
00 = Normal Current;
01 = 80% nominal Analog Current;
10 = 120% nominal Analog Current;
11 = 140% nominal Analog Current
[4] PinLvl RW 0x1
0= low-level SPDIF Input (special buffer for low
level signals)
1= standard SPDIF Input (for high level signals)
[3.:0] SplyOvr RW 0x0
Supply Override Control. See Table below.
[0] = invert ADC supply;
[1] = invert DAC supply;
[2] = supply value;
[3] = supply override enable
Table 56. AFG DACMode Command Verb Format
Verb ID Payload Response
Get FEB 00 See bitfield table.
Set1 7EB See bits [7:0] of bitfield table. 0000_0000h
Table 57. AFG DACMode Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd2 R0x0 Reserved
[6] ADCMixDAC RW 0x0 Enable mixing of ADC with DAC signal (for karaoke)
[5] FadeFast RW 0x0 Gain ramps at the maximum rate
[4] FadeLog RW 0x0 Gain ramping is dB linear instead of voltage linear
over time
[3.:0] Rsvd R0x0 Reserved
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6.2.23. AFG GPIOPlrty
Table 58. AFG GPIOPlrty Command Verb Format
Verb ID Payload Response
Get FEE 00 See bitfield table.
Set1 7EE See bits [7:0] of bitfield table. 0000_0000h
Table 59. AFG GPIOPlrty Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] GP4 RW 0x1
GPIO4 Polarity;
If configured as an output:
0= inverting
1= non-inverting
If configured as a non-sticky input:
0= inverting
1= non-inverting
If configured as a sticky input:
0= falling events will be detected
1= rising events will be detected
[3] GP3 RW 0x1
GPIO3 Polarity;
If configured as an output:
0= inverting
1= non-inverting
If configured as a non-sticky input:
0= inverting
1= non-inverting
If configured as a sticky input:
0= falling events will be detected
1= rising events will be detected
[2] GP2 RW 0x1
GPIO2 Polarity
If configured as an output:
0= inverting
1= non-inverting
If configured as a non-sticky input:
0= inverting
1= non-inverting
If configured as a sticky input:
0= falling events will be detected
1= rising events will be detected
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6.2.24. AFG GPIODrive
[1] GP1 RW 0x1
GPIO1 Polarity;
If configured as an output:
0= inverting
1= non-inverting
If configured as a non-sticky input:
0= inverting
1= non-inverting
If configured as a sticky input:
0= falling events will be detected
1= rising events will be detected
[0] GP0 RW 0x1
GPIO0 Polarity;
If configured as an output:
0= inverting
1= non-inverting
If configured as a non-sticky input:
0= inverting
1= non-inverting
If configured as a sticky input:
0= falling events will be detected
1= rising events will be detected
Table 60. AFG GPIODrive Command Verb Format
Verb ID Payload Response
Get FEF 00 See bitfield table.
Set1 7EF See bits [7:0] of bitfield table. 0000_0000h
Table 61. AFG GPIODrive Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd R0x0 Reserved
[4] OD4 RW 0x0
GPIO4 Drive Mode;
0= push-pull (drive 0 and 1),
1= open drain (drive 0, float for 1).
[3] OD3 RW 0x0
GPIO3 Drive Mode;
0= push-pull (drive 0 and 1),
1= open drain (drive 0, float for 1).
Table 59. AFG GPIOPlrty Command Response Format
Bit Bitfield Name RW Reset Description
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6.2.25. AFG DMic
[2] OD2 RW 0x0
GPIO2 Drive Mode;
0= push-pull (drive 0 and 1),
1= open drain (drive 0, float for 1).
[1] OD1 RW 0x0
GPIO1 Drive Mode;
0= push-pull (drive 0 and 1),
1= open drain (drive 0, float for 1).
[0] OD0 RW 0x0
GPIO0 Drive Mode;
0= push-pull (drive 0 and 1),
1= open drain (drive 0, float for 1).
Table 62. AFG DMic Command Verb Format
Verb ID Payload Response
Get FF0 00 See bitfield table.
Set1 7F0 See bits [7:0] of bitfield table. 0000_0000h
Table 63. AFG DMic Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd R0x0 Reserved
[3.:2] PhAdj RW 0x0
Selects what phase of the DigMic clock the
data should be latched:
0= rising edge,
1= center of high,
2= falling edge,
3= center of low.
[1.:0] Rate RW 0x2
Selects the DigMic rate:
0= 4.704 MHz,
1= 3.528 MHz,
2= 2.352 MHz,
3= 1.176 MHz.
Table 61. AFG GPIODrive Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 59 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.3. DAC0 Node (NID = 0x02)
6.3.1. DAC0 Cnvtr
Table 64. DAC0 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
Table 65. DAC0 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz/44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 60 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.3.2. DAC0 OutAmpRight
6.3.3. DAC0 OutAmpLeft
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 66. DAC0 OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 67. DAC0 OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 68. DAC0 OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 65. DAC0 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 61 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.3.4. DAC0 WCap
Table 69. DAC0 OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 70. DAC0 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 71. DAC0 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x0 Widget type = Audio Output
[19.:16] Delay R0xD Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 No format info; use default format parameters
from Audio Function node instead
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 62 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.3.5. DAC0 PwrState
6.3.6. DAC0 CnvtrID
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier
parameters from Audio Function node instead
[2] OutAmpPrsnt R0x1 Output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 72. DAC0 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 73. DAC0 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down.
Table 74. DAC0 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 71. DAC0 WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 63 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.3.7. DAC0 LR
6.4. DAC1 Node (NID = 0x03)
6.4.1. DAC1 Cnvtr
Table 75. DAC0 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer representing link
stream ID used by the converter widget. By convention
stream 0 is reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by converter.
Table 76. DAC0 LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 77. DAC0 LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
[2] SwapEn RW 0x0 1= enable swapping of left and right channels.
[1.:0] Rsvd1 R0x0 Reserved
Table 78. DAC1 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 64 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
Table 79. DAC1 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz/44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 65 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.4.2. DAC1 OutAmpRight
6.4.3. DAC1 OutAmpLeft
6.4.4. DAC1 WCap
Table 80. DAC1 OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 81. DAC1 OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 82. DAC1 OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 83. DAC1 OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 84. DAC1 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 66 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.4.5. DAC1 PwrState
Table 85. DAC1 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x0 Widget type = Audio Output
[19.:16] Delay R0xD Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x1 Output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 86. DAC1 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 67 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.4.6. DAC1 CnvtrID
Table 87. DAC1 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down.
Table 88. DAC1 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 89. DAC1 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 68 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.4.7. DAC1 LR
6.5. DAC2 Node (NID = 0x04)
6.5.1. DAC2 Cnvtr
Table 90. DAC1 LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 91. DAC1 LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
[2] SwapEn RW 0x0 1= enable swapping of left and right
channels.
[1.:0] Rsvd1 R0x0 Reserved
Table 92. DAC2 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
Table 93. DAC2 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0 Sample Base Rate 0= 48 KHz 1= 44.1 KHz
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 69 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.5.2. DAC2 OutAmpRight
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 94. DAC2 OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 93. DAC2 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 70 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.5.3. DAC2 OutAmpLeft
6.5.4. DAC2 WCap
Table 95. DAC2 OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 96. DAC2 OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 97. DAC2 OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 98. DAC2 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 99. DAC2 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x0 Widget type = Audio Output
[19.:16] Delay R0xD Number of sample delays through widget
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 71 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.5.5. DAC2 PwrState
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 No format info; use default format parameters
from Audio Function node instead
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier
parameters from Audio Function node instead
[2] OutAmpPrsnt R0x1 Output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 100. DAC2 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 101. DAC2 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced node.
Table 99. DAC2 WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 72 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.5.6. DAC2 CnvtrID
6.5.7. DAC2 LR
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down.
Table 102. DAC2 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 103. DAC2 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter.
Table 104. DAC2 LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 101. DAC2 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 73 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.6. DAC3 Node (NID = 0x05)
6.6.1. DAC3 Cnvtr
Table 105. DAC2 LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
[2] SwapEn RW 0x0 1= enable swapping of left and right
channels.
[1.:0] Rsvd1 R0x0 Reserved
Table 106. DAC3 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
Table 107. DAC3 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 74 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.6.2. DAC3 OutAmpRight
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 108. DAC3 OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 109. DAC3 OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 107. DAC3 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 75 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.6.3. DAC3 OutAmpLeft
6.6.4. DAC3 WCap
Table 110. DAC3 OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 111. DAC3 OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 112. DAC3 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 113. DAC3 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x0 Widget type = Audio Output
[19.:16] Delay R0xD Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 76 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.6.5. DAC3 PwrState
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x1 Output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 114. DAC3 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 115. DAC3 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced
node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down.
Table 113. DAC3 WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 77 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.6.6. DAC3 CnvtrID
6.6.7. DAC3 LR
Table 116. DAC3 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 117. DAC3 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter.
Table 118. DAC3 LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 119. DAC3 LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
[2] SwapEn RW 0x0 1= enable swapping of left and right
channels.
[1.:0] Rsvd1 R0x0 Reserved
STAC9271/9274
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6.7. DAC4 Node (NID = 0x06)
6.7.1. DAC4 Cnvtr
Table 120. DAC4 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
Table 121. DAC4 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
STAC9271/9274
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6.7.2. DAC4 OutAmpRight
6.7.3. DAC4 OutAmpLeft
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 122. DAC4 OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 123. DAC4 OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 124. DAC4 OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 121. DAC4 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.7.4. DAC4 WCap
Table 125. DAC4 OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Gain RW 0x7F Amplifier gain step number
Table 126. DAC4 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 127. DAC4 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x0 Widget type = Audio Output
[19.:16] Delay R0xD Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 No format info; use default format parameters
from Audio Function node instead
STAC9271/9274
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6.7.5. DAC4 PwrState
6.7.6. DAC4 CnvtrID
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier
parameters from Audio Function node instead
[2] OutAmpPrsnt R0x1 Output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 128. DAC4 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 129. DAC4 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced
node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down.
Table 130. DAC4 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 127. DAC4 WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.7.7. DAC4 LR
6.8. ADC0 Node (NID = 0x07)
6.8.1. ADC0 Cnvtr
Table 131. DAC4 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter.
Table 132. DAC4 LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 133. DAC4 LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
[2] SwapEn RW 0x0 1= enable swapping of left and right
channels.
[1.:0] Rsvd1 R0x0 Reserved
Table 134. ADC0 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
STAC9271/9274
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Table 135. ADC0 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1 001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
STAC9271/9274
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6.8.2. ADC0 WCap
Table 136. ADC0 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 137. ADC0 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x1 Widget type = Audio Input
[19.:16] Delay R0xD Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right swap capability
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x1 Software should query the Processing
Controls parameter for this widget.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
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6.8.3. ADC0 ConLst
6.8.4. ADC0 ConLstEntry
6.8.5. ADC0 ProcState
Table 138. ADC0 ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 139. ADC0 ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved.
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 140. ADC0 ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 141. ADC0 ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x1B ADC0Mux widget
Table 142. ADC0 ProcState Command Verb Format
Verb ID Payload Response
Get F03 00 See bitfield table.
Set1 703 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
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6.8.6. ADC0 PwrState
Table 143. ADC0 ProcState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] HPFOCDIS RW 0x0
High Pass Filter Offset Calculation Disable
0 = Calculation enabled.
1 = Calculation disabled.
[6.:2] Rsvd1 R0x0 Reserved
[1.:0] ADCHPFByp RW 0x1
Processing State = 00 (OFF): bypass the
ADC high pass filter;
Processing State = 01, 10, 11 (ON or
BENIGN): ADC high pass filter is enabled.
Table 144. ADC0 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 145. ADC0 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced
node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down (default)
STAC9271/9274
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IDT™
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IDT CONFIDENTIAL
6.8.7. ADC0 CnvtrID
6.9. ADC1 Node (NID = 0x08)
6.9.1. ADC1 Cnvtr
Table 146. ADC0 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 147. ADC0 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter
Table 148. ADC1 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
Table 149. ADC1 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
STAC9271/9274
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6.9.2. ADC1 WCap
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 150. ADC1 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 149. ADC1 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
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6.9.3. ADC1 ConLst
Table 151. ADC1 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x1 Widget type = Audio Input
[19.:16] Delay R0xD Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right swap capability
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x1 Software should query the Processing
Controls parameter for this widget.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 152. ADC1 ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
STAC9271/9274
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6.9.4. ADC1 ConLstEntry
6.9.5. ADC1 ProcState
Table 153. ADC1 ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved.
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 154. ADC1 ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 155. ADC1 ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x1C ADC1Mux widget
Table 156. ADC1 ProcState Command Verb Format
Verb ID Payload Response
Get F03 00 See bitfield table.
Set1 703 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
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6.9.6. ADC1 PwrState
Table 157. ADC1 ProcState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] HPFOCDIS RW 0x0
High Pass Filter Offset Calculation Disable
0 = Calculation enabled.
1 = Calculation disabled.
[6.:2] Rsvd1 R0x0 Reserved
[1.:0] ADCHPFByp RW 0x1
Processing State = 00 (OFF): bypass the ADC
high pass filter;
Processing State = 01, 10, 11 (ON or
BENIGN): ADC high pass filter is enabled.
Table 158. ADC1 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 159. ADC1 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced
node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down (default)
STAC9271/9274
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6.9.7. ADC1 CnvtrID
6.10. ADC2 Node (NID = 0x09)
6.10.1. ADC2 Cnvtr
Table 160. ADC1 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 161. ADC1 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter
Table 162. ADC2 Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
Table 163. ADC2 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] StrmType R0x0 Stream Type: only PCM streams are
supported by this widget.
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
STAC9271/9274
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6.10.2. ADC2 WCap
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 164. ADC2 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 163. ADC2 Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
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6.10.3. ADC2 ConLst
Table 165. ADC2 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x1 Widget type = Audio Input
[19.:16] Delay R0xD Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right swap capability
[10] PwrCntrl R0x1 Power State control is supported
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x1 Software should query the Processing
Controls parameter for this widget.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 166. ADC2 ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
STAC9271/9274
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6.10.4. ADC2 ConLstEntry
6.10.5. ADC2 ProcState
Table 167. ADC2 ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved.
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 168. ADC2 ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 169. ADC2 ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x1D ADC2Mux widget
Table 170. ADC2 ProcState Command Verb Format
Verb ID Payload Response
Get F03 00 See bitfield table.
Set1 703 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
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6.10.6. ADC2 PwrState
Table 171. ADC2 ProcState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] HPFOCDIS RW 0x0
High Pass Filter Offset Calculation Disable
0 = Calculation enabled.
1 = Calculation disabled.
[6.:2] Rsvd1 R0x0 Reserved
[1.:0] ADCHPFByp RW 0x1
Processing State = 00 (OFF): bypass the
ADC high pass filter;
Processing State = 01, 10, 11 (ON or
BENIGN): ADC high pass filter is enabled.
Table 172. ADC2 PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
Table 173. ADC2 PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced
node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - Fully on.
11 - Powered down (default)
STAC9271/9274
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6.10.7. ADC2 CnvtrID
6.11. SPDIFOut Node (NID = 0x1E)
6.11.1. SPDIFOut Cnvtr
Table 174. ADC2 CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 175. ADC2 CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter
Table 176. SPDIFOut Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield
table. 0000_0000h
Table 177. SPDIFOut Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] FrmtNonPCM RW 0x0
Stream Type
0= PCM
1= Non-PCM (remaining bits in this verb
have other meanings)
STAC9271/9274
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IDT CONFIDENTIAL
6.11.2. SPDIFOut WCap
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 178. SPDIFOut WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 177. SPDIFOut Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.11.3. SPDIFOut PCM
Table 179. SPDIFOut WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x0 Widget type = Audio Output
[19.:16] Delay R0x4 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x1 Widget supports a Digital stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x1 Widget contains format info; software
should query
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 180. SPDIFOut PCM Command Verb Format
Verb ID Payload Response
Get F00 0A See bitfield table.
STAC9271/9274
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Table 181. SPDIFOut PCM Command Response Format
Bit Bitfield Name RW Reset Description
[31.:21] Rsvd2 R0x0 Reserved
[20] B32 R0x0 32 bit audio formats are NOT supported
[19] B24 R0x1 24 bit audio formats are supported
[18] B20 R0x1 20 bit audio formats are supported
[17] B16 R0x1 16 bit audio formats are supported
[16] B8 R0x0 8 bit audio formats are NOT supported
[15.:12] Rsvd1 R0x0 Reserved
[11] R12 R0x0 384 KHz rate (8/1*48 KHz) NOT supported
[10] R11 R0x1 192.0 KHz rate (4/1*48 KHz) supported
[9] R10 R0x1 176.4 KHz rate (4/1*44.1 KHz) supported
[8] R9 R0x1 96.0 KHz rate (2/1*48 KHz) supported
[7] R8 R0x1 88.2 KHz rate (2/1*44.1 KHz) supported
[6] R7 R0x1 48.0 KHz rate supported (REQUIRED)
[5] R6 R0x1 44.1 KHz rate supported
[4] R5 R0x0 32.0 KHz rate (2/3*48 KHz) NOT supported
[3] R4 R0x0 22.05 KHz rate (1/2*44.1 KHz) NOT
supported
[2] R3 R0x0 16.0 KHz rate (1/3*48 KHz) NOT supported
[1] R2 R0x0 11.025 KHz rate (1/4*44.0 KHz) NOT
supported
[0] R1 R0x0 8.0 KHz rate (1/6*48 KHz) NOT supported
STAC9271/9274
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IDT™
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6.11.4. SPDIFOut Stream
6.11.5. SPDIFOut CnvtrID
Table 182. SPDIFOut Stream Command Verb Format
Verb ID Payload Response
Get F00 0B See bitfield table.
Table 183. SPDIFOut Stream Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd R0x0 Reserved
[2] NonPCM R0x1 Non-PCM data supported.
[1] Float32 R0x0 No support for Float32 data.
[0] PCM R0x1 PCM-formatted data supported.
Table 184. SPDIFOut CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 185. SPDIFOut CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter
STAC9271/9274
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6.11.6. SPDIFOut DigCnvtr
6.12. SPDIFIn Node (NID = 0x20)
6.12.1. SPDIFIn Cnvtr
Table 186. SPDIFOut DigCnvtr Command Verb Format
Verb ID Payload Response
Get F0D 00 See bitfield table.
Set1 70D See bits [7:0] of bitfield table. 0000_0000h
Set2 70E See bits [7:0] of bitfield table. 0000_0000h
Table 187. SPDIFOut DigCnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] Rsvd1 R0x0 Rsvd
[14.:8] CC RW 0x00 CC[6:0] - Category Code
[7] LRW 0x0 L - Generation Level
[6] PRO RW 0x0 PRO - Professional
[5] AUDIO RW 0x0 /AUDIO - Non-Audio
[4] COPY RW 0x0 COPY - Copyright
[3] PRE RW 0x0 PRE - Preemphasis
[2] VCFG RW 0x0 VCFG - Validity Config
[1] VRW 0x0 V - Validity
[0] DigEn RW 0x0 DigEn - Digital Enable
Table 188. SPDIFIn Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
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Table 189. SPDIFIn Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] FrmtNonPCM RW 0x0
Stream Type
0= PCM
1= Non-PCM (remaining bits in this verb
have other meanings)
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
110= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in
each frame of the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
STAC9271/9274
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6.12.2. SPDIFIn WCap
Table 190. SPDIFIn WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 191. SPDIFIn WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x1=Enabled
0xF=Disabled Widget type = Audio Input
[19.:16] Delay R0x4 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x1 Widget supports a Digital stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 Unsolicited Response is not supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x1 Widget contains format info; software
should query
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
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6.12.3. SPDIFIn PCMCap
Table 192. SPDIFIn PCMCap Command Verb Format
Verb ID Payload Response
Get F00 0A See bitfield table.
Table 193. SPDIFIn PCMCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:21] Rsvd2 R0x0 Reserved
[20] B32 R0x0 32 bit audio formats are NOT supported
[19] B24 R0x1 24 bit audio formats are supported
[18] B20 R0x1 20 bit audio formats are supported
[17] B16 R0x1 16 bit audio formats are supported
[16] B8 R0x0 8 bit audio formats are NOT supported
[15.:12] Rsvd1 R0x0 Reserved
[11] R12 R0x0 384 KHz rate (8/1*48 KHz) NOT supported
[10] R11 R0x0 192.0 KHz rate (4/1*48 KHz) NOT supported
[9] R10 R0x0 176.4 KHz rate (4/1*44.1 KHz) NOT supported
[8] R9 R0x1 96.0 KHz rate (2/1*48 KHz) supported
[7] R8 R0x0 88.2 KHz rate (2/1*44.1 KHz) NOT supported
[6] R7 R0x1 48.0 KHz rate supported (REQUIRED)
[5] R6 R0x1 44.1 KHz rate supported
[4] R5 R0x0 32.0 KHz rate (2/3*48 KHz) NOT supported
[3] R4 R0x0 22.05 KHz rate (1/2*44.1 KHz) NOT supported
[2] R3 R0x0 16.0 KHz rate (1/3*48 KHz) NOT supported
[1] R2 R0x0 11.025 KHz rate (1/4*44.0 KHz) NOT supported
[0] R1 R0x0 8.0 KHz rate (1/6*48 KHz) NOT supported
STAC9271/9274
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IDT™
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IDT CONFIDENTIAL
6.12.4. SPDIFIn Stream
6.12.5. SPDIFIn ConLst
6.12.6. SPDIFIn ConLstEntry
Table 194. SPDIFIn Stream Command Verb Format
Verb ID Payload Response
Get F00 0B See bitfield table.
Table 195. SPDIFIn Stream Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd R0x0 Reserved
[2] NonPCM R0x1 Non-PCM data supported.
[1] Float32 R0x0 No support for Float32 data.
[0] PCM R0x1 PCM-formatted data supported.
Table 196. SPDIFIn ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 197. SPDIFIn ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved.
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 198. SPDIFIn ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
STAC9271/9274
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6.12.7. SPDIFIn CnvtrID
6.12.8. SPDIFIn DigCnvtr
Table 199. SPDIFIn ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x22 DigIn pin widget
Table 200. SPDIFIn CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 201. SPDIFIn CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer
representing link stream ID used by the
converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch RW 0x0 Integer representing lowest channel used by
converter
Table 202. SPDIFIn DigCnvtr Command Verb Format
Verb ID Payload Response
Get F0D 00 See bitfield table.
Set1 70D See bits [7:0] of bitfield table. 0000_0000h
Set2 70E See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
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6.12.9. SPDIFIn VCSR0
Table 203. SPDIFIn DigCnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:15] Rsvd2 R0x0 Reserved
[14.:8] CC R0x00 CC[6:0] - Category Code
[7] L R 0x0 L - Generation Level
[6] PRO R0x0 PRO - Professional
[5] AUDIO R0x0 /AUDIO - Non-Audio
[4] COPY R0x0 COPY - Copyright
[3] PRE R0x0 PRE - Preemphasis
[2] Rsvd1 R0x0 Reserved (VCFG bit applies only to output
streams)
[1] V R 0x0 V - Validity
[0] DigEn RW 0x0 DigEn - Digital Enable
Table 204. SPDIFIn VCSR0 Command Verb Format
Verb ID Payload Response
Get FE0 00 See bitfield table.
Set1 7E0 See bits [7:0] of bitfield table. 0000_0000h
Table 205. SPDIFIn VCSR0 Command Response Format
Bit Bitfield Name RW Reset Description
[31] RcvSmplRate R0x0
Recovered sample rate base
0= 48 KHz
1= 44.1 KHz
[30.:28] RcvRateMult R0x0
Recovered sample rate multiplier
000= 1X
001= 2X,
all others reserved
[27.:26] Rsvd R0x0 Reserved
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[25.:22] OrigFS R0x0 Original sample rate (IEC spec).
[21.:20] CA R0x0
Clock accuracy 00= Level II
01= Level I
10= Level III
11= Reserved
[19.:16] FS R0x0
Sample Rate
0000= 44.1 KHz
0010= 48 KHz
0011= 32 KHz
All other combinations are reserved and
shall not be used until further defined (IEC
spec).
[15.:12] CN R0x0
Channel Number (audio channel)
0000= do not take into account
0001= A (left channel for stereo channel
format)
0010= B (right channel for stereo channel
format)
0011= C.
1111= O
[11.:9] SmplWrdL R0x0
Sample Word Length [2:0]
If MaxWrdL=1:
000= unspecified
001= 20 bits
010= 22 bits
011= reserved
100= 23 bits
101= 24 bits
110= 21 bits
111= reserved
If MaxWrdL=0:
000= unspecified
001= 16 bits
010= 18 bits
011= reserved
100= 19 bits
101= 20 bits
110= 17 bits
111= reserved
[8] MaxWrdL R0x0
Max Word Length
0= maximum audio sample word length is
20 bits
1= maximum audio sample word length is
24 bits
Table 205. SPDIFIn VCSR0 Command Response Format
Bit Bitfield Name RW Reset Description
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6.13. PortA Node (NID = 0x0A)
6.13.1. PortA WCap
[7] NOBLKCH RW 0x0 0 = normal behavior
1 = disable block size checking for spdif_in.
[6] VI RW 0x0 0 = Respond to SPDIF_IN Valid tag
1 = Ignore SPDIF_IN valid tag
[5] AMuteDis RW 0x0
0= Auto mute when SPDIF stream marked
non PCM
1= Auto Mute disabled.
[4.:3] SPL RW 0x0
SPDIF_IN Parity Limit:Loss of DPLL Lock
after
00 = 4 parity errors
01 = 3 parity errors
10 = 2 parity errors
11 = 1 parity errors
NEW LOCATION -- was at Register 72h,
Page 0, D13:12, moved as part of SPDIF In
consolidation
[2] SPRun R0x0
SPDIF IN Running
0= no signal on pin 47
1= signal on pin 47
NEW LOCATION -- was at Register 72h,
Page 0, D2, moved as part of SPDIF In
consolidation
[1] SIPER RW 0x0
SPDIF_IN PARITY ERROR. Set to clear.
`Overlaps SIPERSTAT'. Overlaps
SIPERSTAT.
[0] COPYINV RW 0x0 Copyright invert bit.
Table 206. PortA WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 205. SPDIFIn VCSR0 Command Response Format
Bit Bitfield Name RW Reset Description
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6.13.2. PortA PinCap
Table 207. PortA WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 208. PortA PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
STAC9271/9274
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6.13.3. PortA ConLst
Table 209. PortA PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x17
VRef generation is supported by this pin
complex, and the following voltages can be
produced on the associated VRef pin: 80%
Avdd; 50% Avdd; GND; Hi-Z (required since
pin complex is output capable)
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x1 Pin complex has headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 210. PortA ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 211. PortA ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
STAC9271/9274
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6.13.4. PortA ConLstEntry
6.13.5. PortA ConSelectCtrl
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x03= Enabled
0x02=Disabled Number of NID entries in connection list.
Table 212. PortA ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 213. PortA ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x06= Enabled
0x00= Disabled DAC4 Converter widget
[15.:8] ConL1 R0x03 DAC1 Converter widget
[7.:0] ConL0 R0x02 DAC0 Converter widget
Table 214. PortA ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 215. PortA ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:2] Rsvd R0x0 Reserved
[1.:0] Index RW 0x0 Connection select control index.
Table 211. PortA ConLst Command Response Format
Bit Bitfield Name RW Reset Description
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6.13.6. PortA PinWCntrl
6.13.7. PortA UnsolResp
Table 216. PortA PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 217. PortA PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] HPhnEn RW 0x0 1= enable the low impedance amplifier
associated with the output.
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn RW 0x0
VRefEn: Selects one of the possible states for the
VRef signal associated with the Pin Widget. If the
value written to this control does not correspond
to a supported value defined in the VRefCntrl field
of the Pin Capabilities parameter (0C), then this
control will take the value of 000b (Hi-Z).
Table 218. PortA UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
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6.13.8. PortA ChSense
Table 219. PortA UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 220. PortA ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 221. PortA ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack associated
with Pin Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value of
all 1's indicates that a valid sense reading is
not available, or the sense measurement is
busy if it has been recently triggered.
[0] RightCh W0x0 Set 1= perform impedance sensing on right
channel or ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left
channel or tip of the connector
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6.13.9. PortA ConfigDefault
6.14. PortB Node (NID = 0x0B)
6.14.1. PortB WCap
Table 222. PortA ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 223. PortA ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x02 Port Connectivity= Jack;
Location= Mainboard front.
[23.:16] Config3 RW 0x21 Default Device= HP Out;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x40 Color= Green;
Misc= No jack detect override.
[7.:0] Config1 RW 0x20 Association= 2h;
Sequence= 0h.
Table 224. PortB WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
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6.14.2. PortB PinCap
Table 225. PortB WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 226. PortB PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
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6.14.3. PortB ConLst
Table 227. PortB PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x17
VRef generation is supported by this pin
complex, and the following voltages can be
produced on the associated VRef pin: 80%
Avdd; 50%Avdd; GND; Hi-Z (required since
pin complex is output capable)
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x1 Pin has a headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 228. PortB ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 229. PortB ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
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6.14.4. PortB ConLstEntry
6.14.5. PortB ConSelectCtrl
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x03= Enabled DAC4
0x02= Disabled DAC4 Number of NID entries in connection list.
Table 230. PortB ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 231. PortB ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x06= Enabled
0x00= Disabled DAC4 Converter widget
[15.:8] ConL1 R0x03 DAC1 Converter widget
[7.:0] ConL0 R0x02 DAC0 Converter widget
Table 232. PortB ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 233. PortB ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:2] Rsvd R0x0 Reserved
[1.:0] Index RW 0x0 Connection select control index.
Table 229. PortB ConLst Command Response Format
Bit Bitfield Name RW Reset Description
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6.14.6. PortB PinWCntrl
6.14.7. PortB UnsolResp
Table 234. PortB PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 235. PortB PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] HPhnEn RW 0x0 1= enable the low impedance amplifier
associated with the output.
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is
enabled
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is
enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn RW 0x0
VRefEn: Selects one of the possible states
for the VRef signal associated with the Pin
Widget. If the value written to this control
does not correspond to a supported value
defined in the VRefCntrl field of the Pin
Capabilities parameter (0C), then this
control will take the value of 000b (Hi-Z).
Table 236. PortB UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
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6.14.8. PortB ChSense
Table 237. PortB UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 238. PortB ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 239. PortB ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack
associated with Pin Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value
of all 1's indicates that a valid sense reading
is not available, or the sense measurement
is busy if it has been recently triggered.
[0] RightCh W0x0 Set 1= perform impedance sensing on right
channel or ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left
channel or tip of the connector
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6.14.9. PortB ConfigDefault
6.15. PortC Node (NID = 0x0C)
6.15.1. PortC WCap
Table 240. PortB ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 241. PortB ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x02 Port Connectivity= Jack;
Location= Mainboard front.
[23.:16] Config3 RW 0xA1 Default Device= Mic In;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x90 Color= Pink;
Misc= No jack detect override.
[7.:0] Config1 RW 0x80 Association= 8h;
Sequence= 0h.
Table 242. PortC WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
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6.15.2. PortC PinCap
Table 243. PortC WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 244. PortC PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
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6.15.3. PortC ConLst
Table 245. PortC PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x17
VRef generation is supported by this pin
complex, and the following voltages can be
produced on the associated VRef pin: 80%
Avdd; 50% Avdd; GND; Hi-Z (required since
pin complex is output capable)
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 246. PortC ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 247. PortC ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
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6.15.4. PortC ConLstEntry
6.15.5. PortC PinWCntrl
Table 248. PortC ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 249. PortC ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x03 DAC1 Converter widget
Table 250. PortC PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 251. PortC PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd2 R0x0 Reserved
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn RW 0x0
VRefEn: Selects one of the possible states for the
VRef signal associated with the Pin Widget. If the
value written to this control does not correspond
to a supported value defined in the VRefCntrl field
of the Pin Capabilities parameter (0C), then this
control will take the value of 000b (Hi-Z).
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6.15.6. PortC UnsolResp
6.15.7. PortC ChSense
Table 252. PortC UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
Table 253. PortC UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 254. PortC ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 255. PortC ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack
associated with Pin Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value
of all 1's indicates that a valid sense reading
is not available, or the sense measurement
is busy if it has been recently triggered.
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6.15.8. PortC ConfigDefault
[0] RightCh W0x0 Set 1= perform impedance sensing on right
channel or ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left
channel or tip of the connector
Table 256. PortC ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 257. PortC ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x01 Port Connectivity= Jack;
Location= Mainboard rear.
[23.:16] Config3 RW 0x81 Default Device= Line In;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x30 Color= Blue;
Misc= No jack detect override.
[7.:0] Config1 RW 0x4E Association= 4h;
Sequence= Eh.
Table 255. PortC ChSense Command Response Format
Bit Bitfield Name RW Reset Description
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6.16. PortD Node (NID = 0x0D)
6.16.1. PortD WCap
Table 258. PortD WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 259. PortD WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier
parameters from Audio Function node instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
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6.16.2. PortD PinCap
6.16.3. PortD ConLst
Table 260. PortD PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 261. PortD PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x17
VRef generation is supported by this pin
complex, and the following voltages can be
produced on the associated VRef pin: 80%
Avdd; 50% Avdd; GND; Hi-Z (required since
pin complex is output capable)
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x1 Pin complex has headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 262. PortD ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
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6.16.4. PortD ConLstEntry
6.16.5. PortD PinWCntrl
Table 263. PortD ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 264. PortD ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 265. PortD ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x02 DAC0 Converter widget
Table 266. PortD PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
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6.16.6. PortD UnsolResp
Table 267. PortD PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] HPhnEn RW 0x0 1= enable the low impedance amplifier associated
with the output.
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn RW 0x0
VRefEn: Selects one of the possible states for the
VRef signal associated with the Pin Widget. If the
value written to this control does not correspond to
a supported value defined in the VRefCntrl field of
the Pin Capabilities parameter (0C), then this
control will take the value of 000b (Hi-Z).
Table 268. PortD UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
Table 269. PortD UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
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6.16.7. PortD ChSense
6.16.8. PortD ConfigDefault
Table 270. PortD ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 271. PortD ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack associated with Pin
Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value of all 1's
indicates that a valid sense reading is not available, or
the sense measurement is busy if it has been recently
triggered.
[0] RightCh W0x0 Set 1= perform impedance sensing on right channel or
ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left channel or
tip of the connector
Table 272. PortD ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
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6.17. PortE Node (NID = 0x0E)
6.17.1. PortE WCap
Table 273. PortD ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x01 Port Connectivity= Jack;
Location= Mainboard rear.
[23.:16] Config3 RW 0x01 Default Device= Line Out;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x40 Color= Green;
Misc= No jack detect override.
[7.:0] Config1 RW 0x10 Association= 1h;
Sequence= 0h.
Table 274. PortE WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 275. PortE WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
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6.17.2. PortE PinCap
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier
parameters from Audio Function node instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 276. PortE PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 277. PortE PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x17
VRef generation is supported by this pin
complex, and the following voltages can be
produced on the associated VRef pin: 80%
Avdd; 50% Avdd; GND; Hi-Z (required since
pin complex is output capable)
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
Table 275. PortE WCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.17.3. PortE ConLst
6.17.4. PortE ConLstEntry
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 278. PortE ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 279. PortE ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 280. PortE ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 281. PortE ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x04 DAC2 Converter widget
Table 277. PortE PinCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.17.5. PortE PinWCntrl
6.17.6. PortE UnsolResp
Table 282. PortE PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 283. PortE PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd2 R0x0 Reserved
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn RW 0x0
VRefEn: Selects one of the possible states for the
VRef signal associated with the Pin Widget. If the
value written to this control does not correspond to
a supported value defined in the VRefCntrl field of
the Pin Capabilities parameter (0C), then this
control will take the value of 000b (Hi-Z).
Table 284. PortE UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
Table 285. PortE UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
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6.17.7. PortE ChSense
6.17.8. PortE ConfigDefault
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 286. PortE ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 287. PortE ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack
associated with Pin Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value
of all 1's indicates that a valid sense reading
is not available, or the sense measurement
is busy if it has been recently triggered.
[0] RightCh W0x0 Set 1= perform impedance sensing on right
channel or ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left
channel or tip of the connector
Table 288. PortE ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Table 285. PortE UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
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6.18. PortF Node (NID = 0x0F)
6.18.1. PortF WCap
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 289. PortE ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x01 Port Connectivity= Jack;
Location= Mainboard rear.
[23.:16] Config3 RW 0xA1 Default Device= Mic In;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x90 Color= Pink;
Misc= No jack detect override.
[7.:0] Config1 RW 0x40 Association= 4h;
Sequence= 0h.
Table 290. PortF WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 291. PortF WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
Table 288. PortE ConfigDefault Command Verb Format
Verb ID Payload Response
STAC9271/9274
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6.18.2. PortF PinCap
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 292. PortF PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 293. PortF PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
Table 291. PortF WCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.18.3. PortF ConLst
[15.:8] VrefCntrl R0x17
VRef generation is supported by this pin
complex, and the following voltages can be
produced on the associated VRef pin: 80%
Avdd; 50% Avdd; GND; Hi-Z (required since
pin complex is output capable)
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 294. PortF ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 295. PortF ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 293. PortF PinCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.18.4. PortF ConLstEntry
6.18.5. PortF PinWCntrl
Table 296. PortF ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 297. PortF ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x05 DAC3 Converter widget
Table 298. PortF PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 299. PortF PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd2 R0x0 Reserved
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn RW 0x0
VRefEn: Selects one of the possible states for the
VRef signal associated with the Pin Widget. If the
value written to this control does not correspond to
a supported value defined in the VRefCntrl field of
the Pin Capabilities parameter (0C), then this
control will take the value of 000b (Hi-Z).
STAC9271/9274
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6.18.6. PortF UnsolResp
6.18.7. PortF ChSense
Table 300. PortF UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
Table 301. PortF UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 302. PortF ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 303. PortF ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack associated with Pin
Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value of all 1's
indicates that a valid sense reading is not available, or
the sense measurement is busy if it has been recently
triggered.
STAC9271/9274
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6.18.8. PortF ConfigDefault
[0] RightCh W0x0 Set 1= perform impedance sensing on right channel
or ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left channel or
tip of the connector
Table 304. PortF ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 305. PortF ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x01 Port Connectivity= Jack;
Location= Mainboard rear.
[23.:16] Config3 RW Ox01 Default Device= Line Out;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x10 Color= Black;
Misc= No jack detect override.
[7.:0] Config1 RW 0x12 Association= 1h;
Sequence= 2h.
Table 303. PortF ChSense Command Response Format
Bit Bitfield Name RW Reset Description
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6.19. PortG Node (NID = 0x10)
6.19.1. PortG WCap
Table 306. PortG WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 307. PortG WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
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6.19.2. PortG PinCap
6.19.3. PortG ConLst
Table 308. PortG PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 309. PortG PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x00 VRef generation not supported by this pin
complex.
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 310. PortG ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
STAC9271/9274
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6.19.4. PortG ConLstEntry
6.19.5. PortG PinWCntrl
Table 311. PortG ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 312. PortG ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 313. PortG ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x04 DAC2 Converter widget
Table 314. PortG PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 315. PortG PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd2 R0x0 Reserved
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
STAC9271/9274
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6.19.6. PortG UnsolResp
6.19.7. PortG ChSense
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn R0x0 Vref Out not supported on this Port
Table 316. PortG UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
Table 317. PortG UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 318. PortG ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 315. PortG PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
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6.19.8. PortG ConfigDefault
Table 319. PortG ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack associated with Pin
Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value of all 1's
indicates that a valid sense reading is not available, or
the sense measurement is busy if it has been recently
triggered.
[0] RightCh W0x0 Set 1= perform impedance sensing on right channel or
ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left channel or
tip of the connector
Table 320. PortG ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 321. PortG ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x01 Port Connectivity= Jack;
Location= Mainboard rear.
[23.:16] Config3 RW 0x01 Default Device= Line Out;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x60 Color= Orange;
Misc= No jack detect override.
[7.:0] Config1 RW 0x11 Association= 1h;
Sequence= 1h.
STAC9271/9274
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6.20. PortH Node (NID = 0x11)
6.20.1. PortH WCap
Table 322. PortH WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 323. PortH WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
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6.20.2. PortH PinCap
6.20.3. PortH ConLst
Table 324. PortH PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 325. PortH PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x00 VRef generation not supported by this pin
complex.
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x1 Trigger is required for impedance
measurement
[0] ImpSenseCap R0x1 Pin complex supports impedance sense.
Table 326. PortH ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
STAC9271/9274
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6.20.4. PortH ConLstEntry
6.20.5. PortH PinWCntrl
Table 327. PortH ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 328. PortH ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 329. PortH ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 Unused list entry.
[23.:16] ConL2 R0x00 Unused list entry.
[15.:8] ConL1 R0x00 Unused list entry.
[7.:0] ConL0 R0x03 DAC1 Converter widget
Table 330. PortH PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 331. PortH PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd2 R0x0 Reserved
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
STAC9271/9274
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6.20.6. PortH UnsolResp
6.20.7. PortH ChSense
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:3] Rsvd1 R0x0 Reserved
[2.:0] VRefEn R0x0 Vref Out not supported on this Port
Table 332. PortH UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield
table. 0000_0000h
Table 333. PortH UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 334. PortH ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Set2 709 See bits [7:0] of bitfield table. 0000_0000h
Table 331. PortH PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.20.8. PortH ConfigDefault
Table 335. PortH ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0 1= something is plugged into jack associated with Pin
Complex.
[30.:0] Impedance R0x7FFF_FFFF
Measured impedance of the widget. A value of all 1's
indicates that a valid sense reading is not available, or
the sense measurement is busy if it has been recently
triggered.
[0] RightCh W0x0 Set 1= perform impedance sensing on right channel or
ring of the connector
[0] LeftCh W0x0 Set 0= perform impedance sensing on left channel or
tip of the connector
Table 336. PortH ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 337. PortH ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x01 Port Connectivity= Jack;
Location= Mainboard rear.
[23.:16] Config3 RW 0x01 Default Device= Line Out;
Connection Type= 1/8 inch jack.
[15.:8] Config2 RW 0x20 Color= Grey;
Misc= No jack detect override.
[7.:0] Config1 RW 0x14 Association= 1h;
Sequence= 4h.
STAC9271/9274
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6.21. DMic0 Node (NID = 0x13)
6.21.1. DMic0 WCap
Table 338. DMic0 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 339. DMic0 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4=Enabled
0xF=Disabled Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] DigitalStrm R0x0
Widget supports an Analog stream (since the
digital microphone input is a SDM signal that needs
to be processed by the digital filters, it is not a true
bit for bit digital stream like I2S or SPDIF where
samples are passed through unchanged)
[8] ConnList R0x0 No connection list is present
[7] UnsolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParamOvrd R0x0 No amplifier info; use default amplifier parameters
from Audio Function node instead.
[2] OutAmpPrsnt R0x0 No output amp
STAC9271/9274
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6.21.2. DMic0 PinCap
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 340. DMic0 PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 341. DMic0 PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VRefCntrl R0x00 VRef generation not supported by this pin
complex.
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x0 Pin complex is not output capable.
[3] HPhnDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x0 Pin complex cannot perform Presence
Detect.
[1] TrigRqd R0x0 N/A
[0] ImpSenseCap R0x0 Pin complex does not support impedance
sense.
Table 339. DMic0 WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.21.3. DMic0 PinWCntrl
6.21.4. DMic0 ConfigDefault
Table 342. DMic0 PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 343. DMic0 PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:6] Rsvd2 R0x0 Reserved
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:0] Rsvd1 R0x0 Reserved
Table 344. DMic0 ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 345. DMic0 ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x50 Port Connectivity= No connection;
Location= Internal.
[23.:16] Config3 RW 0xA0 Default Device= Mic In;
Connection Type= Unknown.
STAC9271/9274
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6.22. DMic1 Node (NID = 0x14)
6.22.1. DMic1 WCap
[15.:8] Config2 RW 0x01 Color= Unknown;
Misc= Jack detect override.
[7.:0] Config1 RW 0xF0 Association= Fh;
Sequence= 0h.
Table 346. DMic1 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 347. DMic1 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4=Enabled
0xF=Disabled Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] DigitalStrm R0x0
Widget supports an Analog stream (since the digital
microphone input is a SDM signal that needs to be
processed by the digital filters, it is not a true bit for
bit digital stream like I2S or SPDIF where samples
are passed through unchanged)
[8] ConnList R0x0 No connection list is present
[7] UnsolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter
Table 345. DMic0 ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
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6.22.2. DMic1 PinCap
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParamOvrd R0x0 No amplifier info; use default amplifier parameters
from Audio Function node instead.
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 348. DMic1 PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 349. DMic1 PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VRefCntrl R0x00 VRef generation not supported by this pin
complex.
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x0 Pin complex is not output capable.
[3] HPhnDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x0 Pin complex cannot perform Presence
Detect.
Table 347. DMic1 WCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.22.3. DMic1 PinWCntrl
6.22.4. DMic1 ConfigDefault
[1] TrigRqd R0x0 N/A
[0] ImpSenseCap R0x0 Pin complex does not support impedance
sense.
Table 350. DMic1 PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 351. DMic1 PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:6] Rsvd2 R0x0 Reserved
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:0] Rsvd1 R0x0 Reserved
Table 352. DMic1 ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 349. DMic1 PinCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.23. DigOut0 Node (NID = 0x21)
6.23.1. DigOut0 WCap
Table 353. DMic1 ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x50 Port Connectivity= No connection;
Location= Internal.
[23.:16] Config3 RW 0xA0 Default Device= Mic In;
Connection Type= Unknown.
[15.:8] Config2 RW 0x01 Color= Unknown;
Misc= Jack detect override.
[7.:0] Config1 RW 0xF0 Association= Fh;
Sequence= 0h.
Table 354. DigOut0 WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 355. DigOut0 WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No support for swapping left and right channels
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x1 Widget supports a Digital stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
STAC9271/9274
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6.23.2. DigOut0 PinCap
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier
parameters from Audio Function node instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 356. DigOut0 PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 357. DigOut0 PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x00 Vref generation not supported on this pin
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x0 Pin complex is not input capable.
[4] OutCap R0x1 Pin complex is output capable.
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x0 Pin complex cannot perform Presence Detect.
Table 355. DigOut0 WCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.23.3. DigOut0 ConLst
6.23.4. DigOut0 ConLstEntry0
[1] TrigRqd R0x0 N/A
[0] ImpSenseCap R0x0 Pin complex does not support impedance sense.
Table 358. DigOut0 ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 359. DigOut0 ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved.
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x05 Number of NID entries in connection list.
Table 360. DigOut0 ConLstEntry0 Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 361. DigOut0 ConLstEntry0 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x1C ADC1Mux widget
[23.:16] ConL2 R0x1B ADC0Mux widget
[15.:8] ConL1 R0x1F ADAT Out Converter widget
[7.:0] ConL0 R0x1E SPDIF Out Converter widget
Table 357. DigOut0 PinCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.23.5. DigOut0 ConLstEntry4
6.23.6. DigOut0 ConSelectCtrl
6.23.7. DigOut0 PinWCntrl
Table 362. DigOut0 ConLstEntry4 Command Verb Format
Verb ID Payload Response
Get F02 04 See bitfield table.
Table 363. DigOut0 ConLstEntry4 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL7 R0x00 No connection
[23.:16] ConL6 R0x00 No connection
[15.:8] ConL5 R0x00 No connection
[7.:0] ConL4 R0x1D ADC2Mux widget
Table 364. DigOut0 ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 365. DigOut0 ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:1] Rsvd R0x0 Reserved
[2.:0] Index RW 0x0 Connection select control index.
Table 366. DigOut0 PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
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6.23.8. DigOut0 ConfigDefault
Table 367. DigOut0 PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:7] Rsvd2 R0x0 Reserved
[6] OutEn RW 0x0 1= (CODEC) output path of Pin Widget is enabled
[5.:0] Rsvd1 R0x0 Reserved
Table 368. DigOut0 ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 369. DigOut0 ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x01 Port Connectivity= Jack;
Location= Mainboard rear.
[23.:16] Config3 RW 0x44 Default Device= SPDIF Out;
Connection Type= RCA.
[15.:8] Config2 RW 0x21 Color= Grey;
Misc= Jack detect override.
[7.:0] Config1 RW 0x70 Association= 7h;
Sequence= 0h.
STAC9271/9274
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6.24. DigIn Node (NID = 0x22)
6.24.1. DigIn WCap
Table 370. DigIn WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 371. DigIn WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4=Enabled
0x8=Disabled Widget type = Pin Complex
[19.:16] Delay R0x3 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x1 Power State control capability for support of EAPD
[9] Dig R0x1 Widget supports a Digital stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x1 Unsolicited Response is supported
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier parameters
from Audio Function node instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
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IDT™
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IDT CONFIDENTIAL
6.24.2. DigIn PinCap
6.24.3. DigIn PwrState
Table 372. DigIn PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 373. DigIn PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x1 This widget controls EAPD pin
[15.:8] VrefCntrl R0x00 Vref generation not supported on input pins.
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x0 Pin complex is not output capable. (EAPD!=
output stream)
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x1 Pin complex can perform Presence Detect.
[1] TrigRqd R0x0 N/A
[0] ImpSenseCap R0x0 Pin complex does not support impedance
sense.
Table 374. DigIn PwrState Command Verb Format
Verb ID Payload Response
Get F05 00 See bitfield table.
Set1 705 See bits [7:0] of bitfield table. 0000_0000h
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6.24.4. DigIn PinWCntrl
6.24.5. DigIn UnsolResp
Table 375. DigIn PwrState Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7.:4] Act R0x3 PS-Act: Actual power state of referenced
node.
[3.:2] Rsvd1 R0x0 Reserved
[1.:0] Set RW 0x3
PS-Set: Current power setting of referenced
node.
00 - Fully on.
01 - Fully on.
10 - EAPD powered down (Hi-Z).
11 - Powered down (default)
Table 376. DigIn PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
Table 377. DigIn PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:6] Rsvd2 R0x0 Reserved
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is enabled
[4.:0] Rsvd1 R0x0 Reserved
Table 378. DigIn UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
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6.24.6. DigIn ChSense
Table 379. DigIn UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
lock or loss-of-lock of SPDIF-in clock
recovery circuit.
[6] Rsvd1 R0x0 Reserved.
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 380. DigIn ChSense Command Verb Format
Verb ID Payload Response
Get F09 00 See bitfield table.
Set1 709 See bits [7:0] of bitfield table. 0000_0000h
Table 381. DigIn ChSense Command Response Format
Bit Bitfield Name RW Reset Description
[31] PresDtct R0x0
1= something is plugged into jack associated with
Pin Complex. For this widget, Presence Detect
indicates that the SPDIF-in clock recovery circuit
has locked onto a valid SPDIF-in sampling
frequency. Any change in status will generate an
Unsolicited Response, if enabled with verb 708.
[30.:0] Rsvd R0x0 Reserved. Impedance sense not supported for
this Pin Complex.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 169 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.24.7. DigIn EAPD
6.24.8. DigIn ConfigDefault
Table 382. DigIn EAPD Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 383. DigIn EAPD Command Response Format
Bit Bitfield Name RW Reset Description
[31.:2] Rsvd2 R0x0 Reserved
[1] Data RW 0x0
EAPD value reflected on the EAPD pin.
0= power down external amp;
1= power up external amp if PwrState < 0x2.
If PwrState >= 0x2, Pin47 is Hi-Z. An
external pull-down is required if EAPD must
be low when Pin Widget is powered down.
[0] Rsvd1 R0x0 Reserved
Table 384. DigIn ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 385. DigIn ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x81 Port Connectivity= No connect;
Location= Mainboard rear.
[23.:16] Config3 RW 0xC4 Default Device= SPDIF In;
Connection Type= RCA.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 170 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.25. InPort0Mux Node (NID = 0x15)
6.25.1. InPort0Mux WCap
[15.:8] Config2 RW 0x20 Color= Grey;
Misc= No jack detect override.
[7.:0] Config1 RW 0x90 Association= 9h;
Sequence= 0h.
Table 386. InPort0Mux WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 387. InPort0Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 No format info; use default format parameters
from Audio Function node instead
Table 385. DigIn ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 171 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.25.2. InPort0Mux ConLst
6.25.3. InPort0Mux OutAmpCap
[3] AmpParOvrd R0x1 This widget contains its own amplifier
parameters.
[2] OutAmpPrsnt R0x1 Output amp is present
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 388. InPort0Mux ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 389. InPort0Mux ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x09 Number of NID entries in connection list.
Table 390. InPort0Mux OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
Table 391. InPort0Mux OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x0 No mute capability
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x27 Size of each step in the gain range = 10dB
Table 387. InPort0Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 172 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.25.4. InPort0Mux OutAmpRight
6.25.5. InPort0Mux OutAmpLeft
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x04 Number of steps in the gain range = 5 (0dB
to +40dB)
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x00 0dB-step is programmed with this offset
Table 392. InPort0Mux OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 393. InPort0Mux OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd1 R0x0 Reserved
[2.:0] Gain RW 0x0
Amplifier gain step number:
000 = 0dB;
001 = 10dB;
010 = 20dB;
011 = 30dB;
100 = 40dB
Table 394. InPort0Mux OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 391. InPort0Mux OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 173 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.25.6. InPort0Mux ConSelectCtrl
6.25.7. InPort0Mux ConLstEntry0
Table 395. InPort0Mux OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd1 R0x0 Reserved
[2.:0] Gain RW 0x0
Amplifier gain step number:
000 = 0dB;
001 = 10dB;
010 = 20dB;
011 = 30dB;
100 = 40dB
Table 396. InPort0Mux ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 397. InPort0Mux ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd R0x0 Reserved
[3.:0] Index RW 0x0 Connection select control index.
(Default = Port E)
Table 398. InPort0Mux ConLstEntry0 Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 399. InPort0Mux ConLstEntry0 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x0B Port B
[23.:16] ConL2 R0x0F Port F
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 174 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.25.8. InPort0Mux ConLstEntry4
6.25.9. InPort0Mux ConLstEntry8
[15.:8] ConL1 R0x12 CD In
[7.:0] ConL0 R0x0E Port E (default)
Table 400. InPort0Mux ConLstEntry4 Command Verb Format
Verb ID Payload Response
Get F02 04 See bitfield table.
Table 401. InPort0Mux ConLstEntry4 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL7 R0x10 Port G
[23.:16] ConL6 R0x0A Port A
[15.:8] ConL5 R0x0D Port D
[7.:0] ConL4 R0x0C Port C
Table 402. InPort0Mux ConLstEntry8 Command Verb Format
Verb ID Payload Response
Get F02 08 See bitfield table.
Table 403. InPort0Mux ConLstEntry8 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL11 R0x0 No connection.
[23.:16] ConL10 R0x0 No connection.
[15.:8] ConL9 R0x0 No connection.
[7.:0] ConL8 R0x11 Port H
Table 399. InPort0Mux ConLstEntry0 Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 175 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.26. InPort1Mux Node (NID = 0x16)
6.26.1. InPort1Mux WCap
Table 404. InPort1Mux WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 405. InPort1Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x1 This widget contains its own amplifier
parameters.
[2] OutAmpPrsnt R0x1 Output amp is present
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 176 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.26.2. InPort1Mux ConLst
6.26.3. InPort1Mux OutAmpCap
Table 406. InPort1Mux ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 407. InPort1Mux ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL R0x09 Number of NID entries in connection list.
Table 408. InPort1Mux OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
Table 409. InPort1Mux OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x0 No mute capability
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x27 Size of each step in the gain range = 10dB
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x04 Number of steps in the gain range = 5 (0dB to +40dB)
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x00 0dB-step is programmed with this offset
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 177 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.26.4. InPort1Mux OutAmpRight
6.26.5. InPort1Mux OutAmpLeft
Table 410. InPort1Mux OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 411. InPort1Mux OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd1 R0x0 Reserved
[2.:0] Gain RW 0x0
Amplifier gain step number:
000 = 0dB;
001 = 10dB;
010 = 20dB;
011 = 30dB;
100 = 40dB
Table 412. InPort1Mux OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 413. InPort1Mux OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd1 R0x0 Reserved
[2.:0] Gain RW 0x0
Amplifier gain step number:
000 = 0dB;
001 = 10dB;
010 = 20dB;
011 = 30dB;
100 = 40dB
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 178 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.26.6. InPort1Mux ConSelectCtrl
6.26.7. InPort1Mux ConLstEntry0
6.26.8. InPort1Mux ConLstEntry4
Table 414. InPort1Mux ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 415. InPort1Mux ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd R0x0 Reserved
[3.:0] Index RW 0x0 Connection select control index. (Default = Port E)
Table 416. InPort1Mux ConLstEntry0 Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 417. InPort1Mux ConLstEntry0 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x0B Port B
[23.:16] ConL2 R0x0F Port F
[15.:8] ConL1 R0x12 CD In
[7.:0] ConL0 R0x0E Port E (default)
Table 418. InPort1Mux ConLstEntry4 Command Verb Format
Verb ID Payload Response
Get F02 04 See bitfield table.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 179 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.26.9. InPort1Mux ConLstEntry8
6.27. InPort2Mux Node (NID = 0x17)
6.27.1. InPort2Mux WCap
Table 419. InPort1Mux ConLstEntry4 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL7 R0x10 Port G
[23.:16] ConL6 R0x0A Port A
[15.:8] ConL5 R0x0D Port D
[7.:0] ConL4 R0x0C Port C
Table 420. InPort1Mux ConLstEntry8 Command Verb Format
Verb ID Payload Response
Get F02 08 See bitfield table.
Table 421. InPort1Mux ConLstEntry8 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL11 R0x0 No connection.
[23.:16] ConL10 R0x0 No connection.
[15.:8] ConL9 R0x0 No connection.
[7.:0] ConL8 R0x11 Port H
Table 422. InPort2Mux WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 180 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.27.2. InPort2Mux ConLst
Table 423. InPort2Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x1 This widget contains its own amplifier
parameters.
[2] OutAmpPrsnt R0x1 Output amp is present
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 424. InPort2Mux ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 181 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.27.3. InPort2Mux OutAmpCap
6.27.4. InPort2Mux OutAmpRight
Table 425. InPort2Mux ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x9 Number of NID entries in connection list.
Table 426. InPort2Mux OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
Table 427. InPort2Mux OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x0 No mute capability
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x27 Size of each step in the gain range = 10dB
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x04 Number of steps in the gain range = 5 (0dB to +40dB)
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x00 0dB-step is programmed with this offset
Table 428. InPort2Mux OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 182 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.27.5. InPort2Mux OutAmpLeft
6.27.6. InPort2Mux ConSelectCtrl
Table 429. InPort2Mux OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd1 R0x0 Reserved
[2.:0] Gain RW 0x0
Amplifier gain step number:
000 = 0dB;
001 = 10dB;
010 = 20dB;
011 = 30dB;
100 = 40dB
Table 430. InPort2Mux OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 431. InPort2Mux OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd1 R0x0 Reserved
[2.:0] Gain RW 0x0
Amplifier gain step number:
000 = 0dB;
001 = 10dB;
010 = 20dB;
011 = 30dB;
100 = 40dB
Table 432. InPort2Mux ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 183 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.27.7. InPort2Mux ConLstEntry0
6.27.8. InPort2Mux ConLstEntry4
Table 433. InPort2Mux ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd R0x0 Reserved
[3.:0] Index RW 0x0 Connection select control index.
(Default = Port E)
Table 434. InPort2Mux ConLstEntry0 Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 435. InPort2Mux ConLstEntry0 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x0B Port B
[23.:16] ConL2 R0x0F Port F
[15.:8] ConL1 R0x12 CD In
[7.:0] ConL0 R0x0E Port E (default)
Table 436. InPort2Mux ConLstEntry4 Command Verb Format
Verb ID Payload Response
Get F02 04 See bitfield table.
Table 437. InPort2Mux ConLstEntry4 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL7 R0x10 Port G
[23.:16] ConL6 R0x0A Port A
[15.:8] ConL5 R0x0D Port D
[7.:0] ConL4 R0x0C Port C
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 184 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.27.9. InPort2Mux ConLstEntry8
6.28. PCBEEP Node (NID = 0x23)
6.28.1. PCBEEP OutAmpLeft
Table 438. InPort2Mux ConLstEntry8 Command Verb Format
Verb ID Payload Response
Get F02 08 See bitfield table.
Table 439. InPort2Mux ConLstEntry8 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL11 R0x0 No connection.
[23.:16] ConL10 R0x0 No connection.
[15.:8] ConL9 R0x0 No connection.
[7.:0] ConL8 R0x11 Port H
Table 440. PCBEEP OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 441. PCBEEP OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] Mute RW 0x0 1 = disable Digital PC Beep
[6.:2] Rsvd1 R0x0 Reserved
[1.:0] Gain RW 0x0 Mono (left) amplifier gain step number
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 185 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.28.2. PCBEEP WCap
6.28.3. PCBEEP OutAmpCap
Table 442. PCBEEP WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 443. PCBEEP WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x7 Widget type = Beep Generator
[19.:4] Rsvd1 R0x0 Reserved
[3] AmpParOvrd R0x1 This widget contains its own amplifier
parameters.
[2] OutAmpPrsnt R0x1 Output amp is present
[1] InAmpPrsnt R0x0 N/A
[0] Stereo R0x0 Mono widget
Table 444. PCBEEP OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
Table 445. PCBEEP OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x0 Amplifier is capable of muting
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x17 Size of each step in the gain range = 6 dB
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x03 Number of steps in the gain range = 4
(-18dB to 0dB)
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 186 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.28.4. PCBEEP Gen
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x03 0dB-step is programmed with this offset
Table 446. PCBEEP Gen Command Verb Format
Verb ID Payload Response
Get F0A 00 See bitfield table.
Set1 70A See bits [7:0] of bitfield table. 0000_0000h
Table 447. PCBEEP Gen Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:0] Divider RW 0x0
Enable internal PC-Beep generation.
Divider = 00h - disables internal PC Beep
generation and enables normal operation of
the CODEC.
Divider not 00h - generates the beep tone
on all Pin Complexes that are currently
configured as outputs. The Azalia spec
states that the beep tone frequency =
(48 KHz Azalia SYNC rate) / (4*Divider),
producing tones from 47 Hz to 12 KHz
(logarithmic scale). Instead, this part
generates tones with frequency = 48000 *
(257 - Divider) / 1024, yielding a linear
range from 12 KHz to 93.75 Hz in steps of
46.875 Hz. If JackSenseVSR[Rate2x], then
the beep tones generated have frequency =
48000 * (513 - Divider) / 1024, yielding a
range of 24 KHz to 12093.75 Hz in steps of
46.875 Hz.
Table 445. PCBEEP OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 187 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.29. CD Node (NID = 0x12)
6.29.1. CD WCap
Table 448. CD WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 449. CD WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x4 Widget type = Pin Complex
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 N/A for pin complex
[3] AmpParOvrd R0x0 No amp
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
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IDT™
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6.29.2. CD PinCap
6.29.3. CD PinWCntrl
Table 450. CD PinCap Command Verb Format
Verb ID Payload Response
Get F00 0C See bitfield table.
Table 451. CD PinCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:17] Rsvd2 R0x0 Reserved
[16] EapdCap R0x0 This widget does not control EAPD pin
[15.:8] VrefCntrl R0x00 Vref generation not supported on this pin
[7] Rsvd1 R0x0 Reserved
[6] BalancedIO R0x0 Pin complex does not have balanced pins.
[5] InCap R0x1 Pin complex is input capable.
[4] OutCap R0x0 Pin complex is not output capable.
[3] HdphDrvCap R0x0 Pin does not have a headphone amplifier.
[2] PresDtctCap R0x0 Pin complex cannot perform Presence
Detect.
[1] TrigRqd R0x0 N/A
[0] ImpSenseCap R0x0 Pin complex does not support impedance
sense.
Table 452. CD PinWCntrl Command Verb Format
Verb ID Payload Response
Get F07 00 See bitfield table.
Set1 707 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
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6.29.4. CD ConfigDefault
Table 453. CD PinWCntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:6] Rsvd2 R0x0 Reserved
[5] InEn RW 0x0 1= (CODEC) input path of Pin Widget is
enabled
[4.:0] Rsvd1 R0x0 Reserved
Table 454. CD ConfigDefault Command Verb Format
Verb ID Payload Response
Get F1C 00 See bitfield table.
Set1 71C See bits [7:0] of bitfield table. 0000_0000h
Set2 71D See bits [7:0] of bitfield table. 0000_0000h
Set3 71E See bits [7:0] of bitfield table. 0000_0000h
Set4 71F See bits [7:0] of bitfield table. 0000_0000h
Table 455. CD ConfigDefault Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Config4 RW 0x50 Port Connectivity= No connect;
Location= Internal.
[23.:16] Config3 RW 0x33 Default Device= CD;
Connection Type= ATAPI internal.
[15.:8] Config2 RW 0x01 Color= Unknown;
Misc= Jack detect override.
[7.:0] Config1 RW 0xF0 Association= Fh;
Sequence= 0h.
STAC9271/9274
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6.30. ADATOut Node (NID = 0x1F)
6.30.1. ADATOut Cnvtr
Table 456. ADATOut Cnvtr Command Verb Format
Verb ID Payload Response
Get A0000 See bitfield table.
Set1 2See bits [15:0] of bitfield table. 0000_0000h
Table 457. ADATOut Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:16] Rsvd2 R0x0 Reserved
[15] FrmtNonPCM RW 0x0
Stream Type
0= PCM
1= Non-PCM
(remaining bits in this verb have other meanings)
[14] FrmtSmplRate RW 0x0
Sample Base Rate
0= 48 KHz
1= 44.1 KHz
[13.:11] SmplRateMultp RW 0x0
Sample Base Rate Multiple
000= 48 KHz / 44.1 KHz or less
001= x2
010= Reserved (x3)
011= x4
100-111= Reserved
[10.:8] SmplRateDiv RW 0x0
Sample Base Rate Divisor
000= Divide by 1
001= Divide by 2
010= Divide by 3
011= Divide by 4
100= Divide by 5
101= Divide by 6
10= Divide by 7
111= Divide by 8
[7] Rsvd1 R0x0 Reserved
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6.30.2. ADATOut WCap
[6.:4] BitsPerSmpl RW 0x3
Bits per Sample
000= 8 bits
001= 16 bits
010= 20 bits
011= 24 bits
100-111= Reserved
[3.:0] NmbrChan RW 0x1
Number of Channels Number of channels in each frame of
the stream.
0000= 1 channel
0001 = 2 channels
...
1111= 16 channels
Table 458. ADATOut WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 459. ADATOut WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0xF Widget type = Vendor Defined
[19.:16] Delay R0x3 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x1 Widget supports a Digital stream
[8] ConnList R0x0 No connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter
Table 457. ADATOut Cnvtr Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.30.3. ADATOut CnvtrID
6.30.4. ADATOut DigCnvtr
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 No format info; use default format parameters from Audio
Function node instead
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier parameters from
Audio Function node instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 460. ADATOut CnvtrID Command Verb Format
Verb ID Payload Response
Get F06 00 See bitfield table.
Set1 706 See bits [7:0] of bitfield table. 0000_0000h
Table 461. ADATOut CnvtrID Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7.:4] Strm RW 0x0
Software-programmable integer representing link stream ID
used by the converter widget. By convention stream 0 is
reserved as unused.
[3.:0] Ch R0x0 N/A in ADAT mode.
Table 462. ADATOut DigCnvtr Command Verb Format
Verb ID Payload Response
Get F0D 00 See bitfield table.
Table 459. ADATOut WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.30.5. ADATOut VCSR0
Set1 70D See bits [7:0] of bitfield table. 0000_0000h
Set2 70E See bits [7:0] of bitfield table. 0000_0000h
Table 463. ADATOut DigCnvtr Command Response Format
Bit Bitfield Name RW Reset Description
[31.:1] Rsvd2 R0x0 Reserved
[0] DigEn RW 0x0 DigEn - Digital Enable
Table 464. ADATOut VCSR0 Command Verb Format
Verb ID Payload Response
Get FE0 00 See bitfield table.
Set1 7E0 See bits [7:0] of bitfield table. 0000_0000h
Table 465. ADATOut VCSR0 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:5] Rsvd2 R0x0 Reserved FOR 9778
Table 462. ADATOut DigCnvtr Command Verb Format
Verb ID Payload Response
STAC9271/9274
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6.31. VolumeKnob Node (NID = 0x24)
6.31.1. VolumeKnob WCap
[4] ADATFRMT RW 0x0
ADAT Sample Split Format Select 1: U user bits U3 and U2 in
the transmitted ADAT stream are supplied by bits 3:2 of this
verb (field ADAT), under software control. 0: U user bits U3
and U2 in the transmitted ADAT stream are controlled
automatically by hardware, derived according to the
sample-rate of the outgoing audio stream. Hardware support is
provided for the transfer of double- and quad-rate data
streams over the 48 KHz (nominal) 8-channel ADAT interface.
Two 2-channel (stereo) streams or one 4-channel audio
stream at double-rate or one 2-channel stream at quad-rate
will be sample-split over the appropriate ADAT channels. For
each mode, the ADAT channels are listed in the order of arrival
of the corresponding audio sample: ADAT_2CH_SGL C0,C1
(C2-C7 zero padded) ADAT_2CH_DBL C0,C2,C1,C3 (C4-C7
zero padded) ADAT_2CH_QUAD C0,C4,C1,C5,C2,C6,C3,C7
ADAT_4CH_SGL C0,C1,C2,C3 (C4-C7 zero padded)
ADAT_4CH_DBL C0,C2,C4,C6,C1,C3,C5,C7
ADAT_8CH_SGL C0,C1,C2,C3,C4,C5,C6,C7
[3.:0] ADAT RW 0x0
ADAT Lightpipe Control Used in conjunction with the ADAT
Sample Rate in the stream converter to generate the 4 bit
ADAT control signals. ADAT0 (U0): Time Code FLAG ADAT1
(U1): MIDI FLAG ADAT2 (U2): 0 = 44.1/48 KHz audio (1X
operation) 1 = 88.2/96 KHz audio (2X operation) ADAT3 (U3):
1 = 176.4/192 KHz audio (4x operation) User bits U0 and U1
are always under software control. User bits U2 and U3 are
also under software control if ADATFRMT is set. If ADATFRMT
= 0, then bits 3:2 here are ignored and the bits transmitted as
U3:U2 are controlled by hardware according to the
sample-rate of the data stream.
Table 466. VolumeKnob WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 465. ADATOut VCSR0 Command Response Format
Bit Bitfield Name RW Reset Description
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6.31.2. VolumeKnob VolKnobCap
6.31.3. VolumeKnob ConLst
Table 467. VolumeKnob WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x6= Enabled
0xF=Disabled Widget type = Volume Knob Widget
[19.:0] Rsvd1 R0x0 Reserved. Software assumes capability of unsolicited
responses and a connection list for this widget type.
Table 468. VolumeKnob VolKnobCap Command Verb Format
Verb ID Payload Response
Get F00 13 See bitfield table.
Table 469. VolumeKnob VolKnobCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Delta R0x1 Indicates if software can write a base
volume to the Volume Control Knob.
[6.:0] NumSteps R0x7F Total number of steps in the range of the
volume knob = 128
Table 470. VolumeKnob ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 471. VolumeKnob ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved.
STAC9271/9274
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6.31.4. VolumeKnob ConLstEntry0
6.31.5. VolumeKnob ConLstEntry4
[7] LForm R0x0 Connection list uses short-form (7-bit) NID
entries.
[6.:0] ConL RDAC4 enable =0x05
DAC4 disable =0x04 Number of NID entries in connection list.
Table 472. VolumeKnob ConLstEntry0 Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 473. VolumeKnob ConLstEntry0 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x05 DAC3
[23.:16] ConL2 R0x04 DAC2
[15.:8] ConL1 R0x03 DAC1
[7.:0] ConL0 R0x02 DAC0
Table 474. VolumeKnob ConLstEntry4 Command Verb Format
Verb ID Payload Response
Get F02 04 See bitfield table.
Table 475. VolumeKnob ConLstEntry4 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL7 R0x0 No connection.
[23.:16] ConL6 R0x0 No connection.
Table 471. VolumeKnob ConLst Command Response Format
Bit Bitfield Name RW Reset Description
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6.31.6. VolumeKnob UnsolResp
6.31.7. VolumeKnob Cntrl
[15.:8] ConL5 R0x0 No connection.
[7.:0] ConL4 R0x06= Enabled
0x00= Disabled DAC4
Table 476. VolumeKnob UnsolResp Command Verb Format
Verb ID Payload Response
Get F08 00 See bitfield table.
Set1 708 See bits [7:0] of bitfield table. 0000_0000h
Table 477. VolumeKnob UnsolResp Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x00 Reserved
[7] En RW 0x0
Allow generation of Unsolicited Responses.
Unsolicited response events occur upon
jack-insertion OR completion of a
Jack-Sense cycle.
[6] Rsvd1 R0x0 Reserved
[5.:0] Tag RW 0x00
Software programmable field returned in top
six bits (31:26) of every Unsolicited
Response generated by this node.
Table 478. VolumeKnob Cntrl Command Verb Format
Verb ID Payload Response
Get F0F 00 See bitfield table.
Set1 70F See bits [7:0] of bitfield table. 0000_0000h
Table 475. VolumeKnob ConLstEntry4 Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
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6.31.8. VolumeKnob VCSR0
6.32. InPort0Vol Node (NID = 0x18)
6.32.1. InPort0Vol WCap
Table 479. VolumeKnob Cntrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] Direct RW 0x0
Direct = 1 causes the volume control to directly control the
hardware volume of the slave amps. Direct = 0 causes
unsolicited responses to be generated.
[6.:0] Volume RW 0x7F Volume, specified in steps of amplifier gain
Table 480. VolumeKnob VCSR0 Command Verb Format
Verb ID Payload Response
Get FE0 00 See bitfield table.
Set1 7E0 See bits [7:0] of bitfield table. 0000_0000h
Table 481. VolumeKnob VCSR0 Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd R0x0 Reserved
[3] Continuous RW 0x1 Allow continuous incrementing/
decrementing of the volume knob value.
[2.:0] Rate RW 0x0
Volume knob update rate, for continuous
mode and de-bouncing (0.7 = 2.5.20 Hz, in
increments of 2.5 Hz)
Table 482. InPort0Vol WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
STAC9271/9274
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6.32.2. InPort0Vol ConLst
Table 483. InPort0Vol WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 No format info; use default format parameters from Audio
Function node instead
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier parameters from
Audio Function node instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x1 input amp is present
[0] Stereo R0x1 Stereo widget
Table 484. InPort0Vol ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
STAC9271/9274
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6.32.3. InPort0Vol InAmpRight
6.32.4. InPort0Vol InAmpLeft
Table 485. InPort0Vol ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 486. InPort0Vol InAmpRight Command Verb Format
Verb ID Payload Response
Get B00 00 See bitfield table.
Set1 350 See bits [7:0] of bitfield table. 0000_0000h
Table 487. InPort0Vol InAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd1 R0x0 Reserved
[3.:0] Gain RW 0x0 Amplifier gain step number
Table 488. InPort0Vol InAmpLeft Command Verb Format
Verb ID Payload Response
Get B20 00 See bitfield table.
Set1 360 See bits [7:0] of bitfield table. 0000_0000h
Table 489. InPort0Vol InAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd1 R0x0 Reserved
[3.:0] Gain RW 0x0 Amplifier gain step number
STAC9271/9274
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6.32.5. InPort0Vol ConLstEntry
6.33. InPort1Vol Node (NID = 0x19)
6.33.1. InPort1Vol WCap
Table 490. InPort0Vol ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 491. InPort0Vol ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 No Connection
[23.:16] ConL2 R0x00 No Connection
[15.:8] ConL1 R0x00 No Connection
[7.:0] ConL0 R0x15 InPort0 Mux widget
Table 492. InPort1Vol WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 493. InPort1Vol WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
STAC9271/9274
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6.33.2. InPort1Vol ConLst
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0 No format info; use default format parameters from Audio
Function node instead
[3] AmpParOvrd R0x0 No amplifier info; use default amplifier parameters from Audio
Function node instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x1 input amp is present
[0] Stereo R0x1 Stereo widget
Table 494. InPort1Vol ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 495. InPort1Vol ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 493. InPort1Vol WCap Command Response Format
Bit Bitfield Name RW Reset Description
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6.33.3. InPort1Vol InAmpRight
6.33.4. InPort1Vol InAmpLeft
6.33.5. InPort1Vol ConLstEntry
Table 496. InPort1Vol InAmpRight Command Verb Format
Verb ID Payload Response
Get B00 00 See bitfield table.
Set1 350 See bits [7:0] of bitfield table. 0000_0000h
Table 497. InPort1Vol InAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd1 R0x0 Reserved
[3.:0] Gain RW 0x0 Amplifier gain step number
Table 498. InPort1Vol InAmpLeft Command Verb Format
Verb ID Payload Response
Get B20 00 See bitfield table.
Set1 360 See bits [7:0] of bitfield table. 0000_0000h
Table 499. InPort1Vol InAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd1 R0x0 Reserved
[3.:0] Gain RW 0x0 Amplifier gain step number
Table 500. InPort1Vol ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
STAC9271/9274
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6.34. InPort2Vol Node (NID = 0x1A)
6.34.1. InPort2Vol WCap
Table 501. InPort1Vol ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 No Connection
[23.:16] ConL2 R0x00 No Connection
[15.:8] ConL1 R0x00 No Connection
[7.:0] ConL0 R0x16 InPort1Mux widget
Table 502. InPort2Vol WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 503. InPort2Vol WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x0 No left/right channel swap capability
[10] PwrCntrl R0x0 No support for Power State control
[9] Dig R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnSolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
STAC9271/9274
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IDT CONFIDENTIAL
6.34.2. InPort2Vol ConLst
6.34.3. InPort2Vol InAmpRight
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParOvrd R0x0
No amplifier info; use default amplifier
parameters from Audio Function node
instead
[2] OutAmpPrsnt R0x0 No output amp
[1] InAmpPrsnt R0x1 input amp is present
[0] Stereo R0x1 Stereo widget
Table 504. InPort2Vol ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 505. InPort2Vol ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x01 Number of NID entries in connection list.
Table 506. InPort2Vol InAmpRight Command Verb Format
Verb ID Payload Response
Get B00 00 See bitfield table.
Set1 350 See bits [7:0] of bitfield table. 0000_0000h
Table 503. InPort2Vol WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 206 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.34.4. InPort2Vol InAmpLeft
6.34.5. InPort2Vol ConLstEntry
Table 507. InPort2Vol InAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd1 R0x0 Reserved
[3.:0] Gain RW 0x0 Amplifier gain step number
Table 508. InPort2Vol InAmpLeft Command Verb Format
Verb ID Payload Response
Get B20 00 See bitfield table.
Set1 360 See bits [7:0] of bitfield table. 0000_0000h
Table 509. InPort2Vol InAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:4] Rsvd1 R0x0 Reserved
[3.:0] Gain RW 0x0 Amplifier gain step number
Table 510. InPort2Vol ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 511. InPort2Vol ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 No Connection
[23.:16] ConL2 R0x00 No Connection
[15.:8] ConL1 R0x00 No Connection
[7.:0] ConL0 R0x17 InPort2Mux widget
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 207 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.35. ADC0Mux Node (NID = 0x1B)
6.35.1. ADC0Mux WCap
Table 512. ADC0Mux WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 513. ADC0Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x0 No support for Power State control
[9] DigitalStrm R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnsolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParamOvrd R0x1 This widget contains its own amplifier
parameters.
[2] OutAmpPrsnt R0x1 Output amp is present
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 208 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.35.2. ADC0Mux ConLst
6.35.3. ADC0Mux ConSelectCtrl
6.35.4. ADC0Mux ConLstEntry
Table 514. ADC0Mux ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 515. ADC0Mux ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x03= Enabled
0x01= Disabled Number of NID entries in connection list.
Table 516. ADC0Mux ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 517. ADC0Mux ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:2] Rsvd R0x0 Reserved
[1.:0] Index RW 0x0 Connection select control index.
Table 518. ADC0Mux ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 209 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.35.5. ADC0Mux LR
6.35.6. ADC0Mux OutAmpCap
Table 519. ADC0Mux ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 No connection
[23.:16] ConL2 R0x14= Enabled
0x00= Disabled DMic1 pin widget
[15.:8] ConL1 R0x13= Enabled
0x00= Disabled DMic0 pin widget
[7.:0] ConL0 R0x18 InPort0Vol widget
Table 520. ADC0Mux LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 521. ADC0Mux LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
[2] SwapEn RW 0x0 1= swap left and right channels of this Widget.
[1.:0] Rsvd1 R0x0 Reserved
Table 522. ADC0Mux OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 210 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.35.7. ADC0Mux OutAmpRight
6.35.8. ADC0Mux OutAmpLeft
Table 523. ADC0Mux OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x1 Amplifier is capable of muting
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x00 Size of each step in the gain range, N/A
since there are no steps
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x00 No steps, gain is fixed at 0dB
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x00 0dB-step is programmed with this offset
Table 524. ADC0Mux OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 525. ADC0Mux OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Rsvd1 R0x0 Reserved
Table 526. ADC0Mux OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 211 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.36. ADC1Mux Node (NID = 0x1C)
6.36.1. ADC1Mux WCap
Table 527. ADC0Mux OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Rsvd1 R0x0 Reserved
Table 528. ADC1Mux WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 529. ADC1Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x0 No support for Power State control
[9] DigitalStrm R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnsolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 212 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.36.2. ADC1Mux ConLst
6.36.3. ADC1Mux ConSelectCtrl
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParamOvrd R0x1 This widget contains its own amplifier
parameters.
[2] OutAmpPrsnt R0x1 Output amp is present
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 530. ADC1Mux ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 531. ADC1Mux ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x03 = Enabled
0x01 = Disabled Number of NID entries in connection list.
Table 532. ADC1Mux ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 529. ADC1Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 213 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.36.4. ADC1Mux ConLstEntry
6.36.5. ADC1Mux LR
Table 533. ADC1Mux ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:2] Rsvd R0x0 Reserved
[1.:0] Index RW 0x0 Connection select control index.
Table 534. ADC1Mux ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 535. ADC1Mux ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 No connection
[23.:16] ConL2 R0x14= Enabled
0x0= Disabled DMic1 pin widget
[15.:8] ConL1 R0x13= Enabled
0x0= Disabled DMic0 pin widget
[7.:0] ConL0 R0x19 InPort1Vol widget
Table 536. ADC1Mux LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 537. ADC1Mux LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 214 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.36.6. ADC1Mux OutAmpCap
6.36.7. ADC1Mux OutAmpRight
[2] SwapEn RW 0x0 1= swap left and right channels of this Widget.
[1.:0] Rsvd1 R0x0 Reserved
Table 538. ADC1Mux OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
Table 539. ADC1Mux OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x1 Amplifier is capable of muting
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x00 Size of each step in the gain range, N/A
since there are no steps
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x00 No steps, gain is fixed at 0dB
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x00 0dB-step is programmed with this offset
Table 540. ADC1Mux OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 537. ADC1Mux LR Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 215 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.36.8. ADC1Mux OutAmpLeft
6.37. ADC2Mux Node (NID = 0x1D)
6.37.1. ADC2Mux WCap
Table 541. ADC1Mux OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Rsvd1 R0x0 Reserved
Table 542. ADC1Mux OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 543. ADC1Mux OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Rsvd1 R0x0 Reserved
Table 544. ADC2Mux WCap Command Verb Format
Verb ID Payload Response
Get F00 09 See bitfield table.
Table 545. ADC2Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] Rsvd2 R0x0 Reserved
[23.:20] Type R0x3 Widget type = Audio Selector
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 216 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.37.2. ADC2Mux ConLst
[19.:16] Delay R0x0 Number of sample delays through widget
[15.:12] Rsvd1 R0x0 Reserved
[11] SwapCap R0x1 Left and right channels can be swapped
[10] PwrCntrl R0x0 No support for Power State control
[9] DigitalStrm R0x0 Widget supports an Analog stream
[8] ConnList R0x1 Connection list is present
[7] UnsolCap R0x0 No support for Unsolicited Response
[6] ProcWidget R0x0 No Processing Controls parameter.
[5] Stripe R0x0 No support for striping
[4] FormatOvrd R0x0
No format info; use default format
parameters from Audio Function node
instead
[3] AmpParamOvrd R0x1 This widget contains its own amplifier
parameters.
[2] OutAmpPrsnt R0x1 Output amp is present
[1] InAmpPrsnt R0x0 No input amp
[0] Stereo R0x1 Stereo widget
Table 546. ADC2Mux ConLst Command Verb Format
Verb ID Payload Response
Get F00 0E See bitfield table.
Table 547. ADC2Mux ConLst Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd R0x0 Reserved
Table 545. ADC2Mux WCap Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 217 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.37.3. ADC2Mux ConSelectCtrl
6.37.4. ADC2Mux ConLstEntry
[7] LForm R0x0 Connection list uses short-form (7-bit) NID entries.
[6.:0] ConL R0x03= Enabled
0x1= Disabled Number of NID entries in connection list.
Table 548. ADC2Mux ConSelectCtrl Command Verb Format
Verb ID Payload Response
Get F01 00 See bitfield table.
Set1 701 See bits [7:0] of bitfield table. 0000_0000h
Table 549. ADC2Mux ConSelectCtrl Command Response Format
Bit Bitfield Name RW Reset Description
[31.:2] Rsvd R0x0 Reserved
[1.:0] Index RW 0x0 Connection select control index.
Table 550. ADC2Mux ConLstEntry Command Verb Format
Verb ID Payload Response
Get F02 00 See bitfield table.
Table 551. ADC2Mux ConLstEntry Command Response Format
Bit Bitfield Name RW Reset Description
[31.:24] ConL3 R0x00 No connection
[23.:16] ConL2 R0x14= Enabled
0x0= Disabled DMic1 pin widget
[15.:8] ConL1 R0x13= Enabled
0x0= Disabled DMic0 pin widget
[7.:0] ConL0 R0x1A InPort2Vol widget
Table 547. ADC2Mux ConLst Command Response Format
Bit Bitfield Name RW Reset Description
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 218 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.37.5. ADC2Mux LR
6.37.6. ADC2Mux OutAmpCap
Table 552. ADC2Mux LR Command Verb Format
Verb ID Payload Response
Get F0C 00 See bitfield table.
Set1 70C See bits [7:0] of bitfield table. 0000_0000h
Table 553. ADC2Mux LR Command Response Format
Bit Bitfield Name RW Reset Description
[31.:3] Rsvd2 R0x0 Reserved
[2] SwapEn RW 0x0 1= swap left and right channels of this
Widget.
[1.:0] Rsvd1 R0x0 Reserved
Table 554. ADC2Mux OutAmpCap Command Verb Format
Verb ID Payload Response
Get F00 12 See bitfield table.
Table 555. ADC2Mux OutAmpCap Command Response Format
Bit Bitfield Name RW Reset Description
[31] Mute R0x1 Amplifier is capable of muting
[30.:23] Rsvd3 R0x0 Reserved
[22.:16] StepSize R0x00 Size of each step in the gain range, N/A
since there are no steps
[15] Rsvd2 R0x0 Reserved
[14.:8] NumSteps R0x00 No steps, gain is fixed at 0dB
[7] Rsvd1 R0x0 Reserved
[6.:0] Offset R0x00 0dB-step is programmed with this offset
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 219 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
6.37.7. ADC2Mux OutAmpRight
6.37.8. ADC2Mux OutAmpLeft
Table 556. ADC2Mux OutAmpRight Command Verb Format
Verb ID Payload Response
Get B80 00 See bitfield table.
Set1 390 See bits [7:0] of bitfield table. 0000_0000h
Table 557. ADC2Mux OutAmpRight Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Rsvd1 R0x0 Reserved
Table 558. ADC2Mux OutAmpLeft Command Verb Format
Verb ID Payload Response
Get BA0 00 See bitfield table.
Set1 3A0 See bits [7:0] of bitfield table. 0000_0000h
Table 559. ADC2Mux OutAmpLeft Command Response Format
Bit Bitfield Name RW Reset Description
[31.:8] Rsvd2 R0x0 Reserved
[7] Mute RW 0x1 1= mute is active
[6.:0] Rsvd1 R0x0 Reserved
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 220 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
7. ORDERING INFORMATION
7.1. Part Order Numbers
NOTE: When ordering these parts the “yy” will be replaced with the CODEC revision. Add an “R” to the end of any of
these part numbers for delivery on Tape and Reel. The minimum order quantity for Tape and Reel is 2,000 units.
Part Order Number Voltage DAC SNR DigMic ADAT Dolby
STAC9274X5TAEyyX 5 V 105dB Yes(Muxed) Yes No
STAC9274D5TAEyyX 5 V 105dB Yes(Muxed) Yes Master Studio
STAC9271X5TAEyyX 5 V 95dB No No No
STAC9271D5TAEyyX 5 V 95dB No No Home Theater/Sound Room
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 221 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
8. PIN INFORMATION
8.1. Pin Diagram
Figure 4. 48-Pin LQFP Pinout
Note: ADAT, DMIC_CLK, DMIC_0, and DMIC_1 are not available on the STAC9271.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48 LQFP
DVDD_CORE
VOLUME UP/DMIC_0/GPIO1
VOLUME DOWN/DMIC_1/GPIO2
DVSS
SDO
BITCLK
DVSS
SDI
DVDD_CORE
SYNC
RESET#
PCBEEP
PORTD_R
PORTD_L
SENSE_B
CAP2
VREFOUT-D
VREFOUT-E
VREFOUT-F
VREFOUT-C
VREFOUT-B
VREFFILT
AVSS1
AVDD1
SENSE_A
PORTE_L
PORTE_R
PORTF_L
PORTF_R
CD_L
CD_GND
CD_R
PORTB_L
PORTB_R
PORTC_L
PORTC_R
SPDIF OUT/ADAT_OUT
SPDIF IN//GPIO0/EAPD/DMIC_CLK
PORTH_R
PORTH_L
PORTG_R
PORTG_L
AVSS2
PORTA_R
DVDD_CORE/VPP
PORTA_L
AVDD2
VREFOUT-A
36
35
34
33
32
31
30
29
28
27
26
25
48
47
46
45
44
43
42
41
40
39
38
37
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 222 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
8.2. Pin Table
Pin Name Pin Function I/O
Internal
Pull-up/
Pull-down
Pin
Location
DVDD_CORE Digital Vdd= 3.3V I(Digital) None 1
Volume Up/DMIC0/GPIO1
Volume Control
OR
Digital Mic 0 Input/General Purpose I/O
I/O(Digital)
Pull-Up 50 KΩ
with Volume,
GPIO or
Pull-down
50 KΩ with
Digital Mic
2
Volume Down/DMIC1/GPIO2
Volume Control
OR
Digital Mic 1 Input/General Purpose I/O
I/O(Digital)
Pull-Up 50 KΩ
with Volume,
GPIO or
Pull-down
50 KΩ with
Digital Mic
3
DVSS Digital Ground I(Digital) None 4
SDATA_OUT HD Audio Serial Data output
(inbound stream) I/O(Digital) None 5
BIT_CLK HD Audio Bit Clock I(Digital) None 6
DVSS3 Digital Ground I(Digital) None 7
SDATA_IN HD Audio Serial Data
(outbound stream) O(Digital) None 8
DVDD_CORE Digital Vdd = 3.3V I(Digital) None 9
SYNC HD Audio Frame Sync I(Digital) None 10
RESET# HD Audio Reset I(Digital) None 11
PCBEEP PC Beep I(Analog) None 12
SENSE_A Jack insertion detection Ports A, B, C, D I(Analog) None 13
PORT-E_L Input/Output of Left DAC2 I/O(Analog) None 14
PORT-E_R Input/Output of Right DAC2 I/O(Analog) None 15
PORT-F_L Input/Output of Left DAC3 I/O(Analog) None 16
PORT-F_R) Input/Output of Right DAC3 I/O(Analog) None 17
CD-L CD Audio Left Channel I(Analog) None 18
CD-GND CD Audio Analog Ground I(Analog) None 19
CD-R CD Audio Right Channel I(Analog) None 20
PORT-B_L (HP) Input/Output of Left DAC0, 3, 4 I/O(Analog) None 21
PORT-B_R (HP) Input/Output of Right DAC0, 3, 4 I/O(Analog) None 22
PORT-C_L Input/Output of Left DAC1 I/O(Analog) None 23
PORT-C_R Input/Output of Right DAC1 I/O(Analog) None 24
AVDD1 Analog Vdd = 3.3V to 5V I(Analog) None 25
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
IDT™
10-CHANNEL HIGH DEFINITION AUDIO CODEC 223 STAC9271/9274 V 1.1 01/08
IDT CONFIDENTIAL
AVSS1 Analog Ground I(Analog) None 26
VREF FILT Analog Virtual Ground O(Analog) None 27
VREFOUT-B Reference Voltage out drive
(intended for mic bias) for Port B O(Analog) None 28
VREFOUT-C Reference Voltage out drive
(intended for mic bias) for Port C O(Analog) None 29
VREFOUT-F Reference Voltage out drive
(intended for mic bias) for Port F O(Analog) None 30
VREFOUT-E Reference Voltage out drive
(intended for mic bias) for Port E O(Analog) None 31
VREFOUT-D Reference Voltage out drive
(intended for mic bias) for Port D O(Analog) None 32
CAP2 ADC reference Cap O(Analog) None 33
SENSE_B Jack insertion detection Ports E, F, G, H I(Analog) None 34
PORT-D_L (HP) Input/Output of Left DAC0 I/O(Analog) None 35
PORT-D_R (HP) Input/Output of Right DAC0 I/O(Analog) None 36
VREFOUT-A Reference Voltage out drive
(ntended for mic bias) for Port A O(Analog) None 37
AVDD2 Analog Vdd = 3.3 V to 5 V I(Analog) None 38
PORT-A_L (HP) Input/Output of Left DAC0, 3, 4 I/O(Analog) None 39
DVDD_CORE Digital Vdd= 3.3V I(Analog) None 40
PORT-A_R (HP) Input/Output of Right DAC0, 3, 4 I/O(Analog) None 41
AVSS3 Analog Ground I(Analog) None 42
PORT-G_L Input/Output of Left DAC2 I/O(Analog) None 43
PORT-G_R Input/Output of Right DAC2 I/O(Analog) None 44
PORT-H_L Input/Output of Left DAC1 I/O(Analog) None 45
PORT-H_R Input/Output of Right DAC1 I/O(Analog) None 46
SPDIFIN/GPIO0/EAPD/DMIC_CLK SPDIF Input, General Purpose I/O,
EAPD, Digital Mic Ouput Clock I/O(Digital) Pull-up 50 KΩ
or more 47
S/PDIF-OUT/ADAT_OUT
SPDIF digital output (50 KΩ internal
pull-down), ADAT Output on STAC9274
only
O(Digital) 50 KΩ internal
pull-down 48
Pin Name Pin Function I/O
Internal
Pull-up/
Pull-down
Pin
Location
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9. PACKAGE OUTLINE AND PACKAGE DIMENSIONS
Package dimensions are kept current with JEDEC Publication No. 95
9.1. 48-Pin LQFP
Figure 5. 48-Pin LQFP Package Outline and Package Dimensions
Key
LQFP Dimensions in mm
Min Nom Max
A 1.40 1.50 1.60
A1 0.05 0.10 0.15
A2 1.35 1.40 1.45
D 8.80 9.00 9.20
D1 6.90 7.00 7.10
E 8.80 9.00 9.20
E1 6.90 7.00 7.10
L 0.45 0.60 0.75
e0.50
C 0.09 - 0.20
b 0.17 0.22 0.27
48 pin LQFP
E
E1
D
D1
Pin 1
b
A
A2
A1
c
e
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10.SOLDER REFLOW PROFILE
10.1. Standard Reflow Profile Data
Note: These devices can be hand soldered at 360 oC for 3 to 5 seconds.
FROM: IPC / JEDEC J-STD-020C “Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface
Mount Devices” (www.jedec.org/download).
Figure 6. Reflow Profile
Profile Feature Pb Free Assembly
Average Ramp-Up Rate (Tsmax - Tp) 3 oC / second max
Preheat
Temperature Min (Tsmin)
Temperature Max (Tsmax)
Time (tsmin - tsmax)
150 oC
200 oC
60 - 180 seconds
Time maintained above Temperature (TL)
Time (tL)
217 oC
60 - 150 seconds
Peak / Classification Temperature (Tp) See “Package Classification Reflow Temperatures”
on page 226.
Time within 5 oC of actual Peak Temperature (tp) 20 - 40 seconds
Ramp-Down rate 6 oC / second max
Time 25 oC to Peak Temperature 8 minutes max
Note: All temperatures refer to topside of the package, measured on the package body surface.
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10.2. Pb Free Process - Package Classification Reflow Temperatures
Package Type MSL Reflow Temperature
LQFP 48-pin 3 260 oC*
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11. REVISION HISTORY
Revision Date Description of Change
0.3 July 2005 Initial release.
0.5 August 2005
Updated Pin Outs and Pin Tables, Added Updated performance tables to show all voltage options,
Updated Diagrams, Added Widget Diagram, Added Pin Configuration Default Register Settings
Table, Added Part Numbers. Added 56-QFN Reflow Profile Information. Added Widget Information.
Updated ESD Information. Added 40dB Boost Information.
0.7 May 2006 Updated logo. Added ADAT logo. Added Audio Jack Presence Detect section. Updated Power
Consumption numbers.
0.82 8 October 2006 Initial release in IDT format.
1.0 March 2007 Removed 56QFN option for the STAC9274. Corrected the missing “X” at the end of the orderable
part numbers.
1.1 January 2008 Removed STAC9272 and STAC9273 as EOL issued.
© 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device
Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered
trademarks used to identify products or services of their respective owners.
Corporate Headquarters
Integrated Device Technology, Inc.
6024 Silver Creek Valley Road
San Jose, CA 95138
United States
800 345 7015
+408 284 8200 (outside U.S.)
Europe
IDT Europe, Limited
Prime House
Barnett Wood Lane
Leatherhead, Surrey
United Kingdom KT22 7DE
+44 1372 363 339
For Sales
800-345-7015
408-284-8200
Fax: 408-284-2775
For Tech Support
HA.CM@idt.com
Innovate with IDT audio for high fidelity. Contact:
www.IDT.com
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC PC AUDIO
