92hdw74c2 Integrated Device Technology, 92hdw74c2 Datasheet - Page 3

• Manufacturer Part Number: 92hdw74c2
• Description: Six Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

SIX CHANNEL HD AUDIO CODEC
TABLE OF CONTENTS
92HDW74C2
SIX CHANNEL HD AUDIO CODEC
1. DESCRIPTION ........................................................................................................................ 11
2. CHARACTERISTICS ............................................................................................................... 31
3. PORT CONFIGURATIONS ..................................................................................................... 38
4. FUNCTIONAL BLOCK DIAGRAMS ....................................................................................... 39
5. WIDGET INFORMATION AND SUPPORTED COMMAND VERBS ....................................... 40
6. WIDGET INFORMATION ........................................................................................................ 43
1.1. Overview ..........................................................................................................................................11
1.2. Orderable Part Numbers ..................................................................................................................11
1.3. Block Diagram .................................................................................................................................12
1.4. Detailed Description .........................................................................................................................13
2.1. Electrical Specifications ...................................................................................................................31
2.2. 92HDW74C2 5V, 4.75V, and 3.3V Analog Performance Characteristics .........................................32
5.1. Widget List ......................................................................................................................................41
5.2. Pin Configuration Default Register Settings .....................................................................................42
6.1. Root Node (NID = 00) ......................................................................................................................43
6.2. AFG Node (NID = 01 .......................................................................................................................45
1.4.1. Port Functionality ...............................................................................................................13
1.4.2. Port Characteristics ............................................................................................................13
1.4.3. Jack Detect ........................................................................................................................14
1.4.4. SPDIF Output .....................................................................................................................14
1.4.5. SPDIF Input .......................................................................................................................15
1.4.6. Analog Mixer ......................................................................................................................15
1.4.7. Input Multiplexers ...............................................................................................................16
1.4.8. ADC Multiplexers ...............................................................................................................16
1.4.9. Power Management ...........................................................................................................16
1.4.10. Low-voltage HDA Signaling .............................................................................................18
1.4.11. Multi-channel capture .......................................................................................................18
1.4.12. EAPD ...............................................................................................................................20
1.4.13. Digital Microphone Support ..............................................................................................22
1.4.14. PC-Beep ..........................................................................................................................27
1.4.15. Headphone Drivers ..........................................................................................................27
1.4.16. GPIO ................................................................................................................................28
1.4.17. External Volume Control ..................................................................................................29
2.1.1. Absolute Maximum Ratings ...............................................................................................31
2.1.2. Recommended Operating Conditions ................................................................................31
6.1.1. Root VendorID ...................................................................................................................43
6.1.2. Root RevID ........................................................................................................................44
6.2.1. AFG Reset .........................................................................................................................45
6.2.2. AFG NodeInfo ....................................................................................................................45
6.2.3. AFG FGType ......................................................................................................................45
6.2.4. AFG AFGCap .....................................................................................................................46
6.2.5. AFG PCMCap ....................................................................................................................47
6.2.6. AFG StreamCap ................................................................................................................48
6.2.7. AFG InAmpCap ..................................................................................................................48
6.2.8. AFG PwrStateCap .............................................................................................................49
6.2.9. AFG GPIOCnt ....................................................................................................................49
6.2.10. AFG OutAmpCap .............................................................................................................50
6.2.12. AFG UnsolResp ...............................................................................................................51
6.2.11. AFG PwrState ..................................................................................................................51
6.2.13. AFG GPIO ........................................................................................................................52
6.2.14. AFG GPIOEn ...................................................................................................................53
6.2.15. AFG GPIODir ...................................................................................................................54
6.2.16. AFG GPIOWakeEn ..........................................................................................................55
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92HDW74C2
PC AUDIO
V 1.0 03/08