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ALC892

7.1+2 CHANNEL HD AUDIO CODEC WITH CONTENT PROTECTION

Realtek Semiconductor 

ALC892

Datasheet

Table of Contents

1. GENERAL DESCRIPTION ..............................................................................................................................................1

2. FEATURES .........................................................................................................................................................................2

2.1. HARDWARE FEATURES ................................................................................................................................................2

2.2. SOFTWARE FEATURES..................................................................................................................................................3

3. SYSTEM APPLICATIONS...............................................................................................................................................4

4. BLOCK DIAGRAM ...........................................................................................................................................................5

4.1. ANALOG INPUT/OUTPUT UNIT .....................................................................................................................................6

5. PIN ASSIGNMENTS .........................................................................................................................................................7

5.1. PACKAGE AND VERSION IDENTIFICATION ....................................................................................................................7

6. PIN DESCRIPTIONS.........................................................................................................................................................8

7. HIGH DEFINITION AUDIO LINK PROTOCOL .......................................................................................................10

7.1. LINK SIGNALS............................................................................................................................................................10

7.1.1. Link Signal Definitions .........................................................................................................................................11

7.1.2. Signaling Topology...............................................................................................................................................12

7.2. FRAME COMPOSITION ................................................................................................................................................13

7.2.1. Outbound Frame – Single SDO............................................................................................................................13

7.2.2. Outbound Frame – Multiple SDOs.......................................................................................................................14

7.2.3. Inbound Frame – Single SDI ................................................................................................................................15

7.2.4. Inbound Frame – Multiple SDIs...........................................................................................................................16

7.2.5. Variable Sample Rates .........................................................................................................................................16

7.3. RESET AND INITIALIZATION .......................................................................................................................................19

7.3.1. Link Reset .............................................................................................................................................................19

7.3.2. Codec Reset ..........................................................................................................................................................20

7.3.3. Codec Initialization Sequence ..............................................................................................................................21

7.4. VERB AND RESPONSE FORMAT ..................................................................................................................................21

7.4.1. Command Verb Format........................................................................................................................................21

7.4.2. Response Format..................................................................................................................................................24

7.5. POWER MANAGEMENT...............................................................................................................................................24

7.5.1. System Power State Definitions............................................................................................................................24

7.5.2. Power Controls in NID 01h..................................................................................................................................25

7.5.3. Powered Down Conditions...................................................................................................................................25

8. SUPPORTED VERBS AND PARAMETERS................................................................................................................26

8.1. VERB – GET PARAMETERS (VERB ID=F00H).............................................................................................................26

8.1.1. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)............................................................................26

8.1.2. Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)..........................................................................26

8.1.3. Parameter – Subordinate Node Count (Verb ID=F00h, Parameter ID=04h) .....................................................27

8.1.4. Parameter – Function Group Type (Verb ID=F00h, Parameter ID=05h) ..........................................................27

8.1.5. Parameter – Audio Function Capabilities (Verb ID=F00h, Parameter ID=08h) ...............................................28

8.1.6. Parameter – Audio Widget Capabilities (Verb ID=F00h, Parameter ID=09h) ..................................................28

8.1.7. Parameter – Supported PCM Size, Rates (Verb ID=F00h, Parameter ID=0Ah) ................................................29

8.1.8. Parameter – Supported Stream Formats (Verb ID=F00h, Parameter ID=0Bh) .................................................30

8.1.9. Parameter – Pin Capabilities (Verb ID=F00h, Parameter ID=0Ch) ..................................................................30

8.1.10. Parameter – Amplifier Capabilities (Verb ID=F00h, Input Amplifier Parameter ID=0Dh) ..........................31

8.1.11. Parameter – Amplifier Capabilities (Verb ID=F00h, Output Amplifier Parameter ID=12h) ........................31

7.1+2 Channel HD Audio Codec with Content Protection iii

Track ID: JATR-2265-11 Rev. 1.3

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