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ALC888S-VD Scheda tecnica(PDF) 3 Page - Realtek Semiconductor Corp. |
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ALC888S-VD Scheda tecnica(HTML) 3 Page - Realtek Semiconductor Corp. |
3 / 92 page ALC888S-VD Datasheet 7.1+2 Channel HD Audio Codec with Two Independent SPDIF Outputs iii Track ID: JATR-2265-11 Rev. 1.2 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 6.1. PIN DESCRIPTION TABLE..............................................................................................................................................8 6.2. PIN DIFFERENCES: ALC888S-VD VS. ALC888S-VC ................................................................................................10 7. HIGH DEFINITION AUDIO LINK PROTOCOL .......................................................................................................11 7.1. LINK SIGNALS............................................................................................................................................................11 7.1.1. Link Signal Definitions .........................................................................................................................................12 7.1.2. Signaling Topology...............................................................................................................................................13 7.2. FRAME COMPOSITION ................................................................................................................................................14 7.2.1. Outbound Frame – Single SDO............................................................................................................................14 7.2.2. Outbound Frame – Multiple SDOs.......................................................................................................................15 7.2.3. Inbound Frame – Single SDI ................................................................................................................................16 7.2.4. Inbound Frame – Multiple SDIs...........................................................................................................................17 7.2.5. Variable Sample Rates .........................................................................................................................................17 7.3. RESET AND INITIALIZATION .......................................................................................................................................20 7.3.1. Link Reset .............................................................................................................................................................20 7.3.2. Codec Reset ..........................................................................................................................................................21 7.3.3. Codec Initialization Sequence ..............................................................................................................................22 7.4. VERB AND RESPONSE FORMAT ..................................................................................................................................22 7.4.1. Command Verb Format........................................................................................................................................22 7.4.2. Response Format..................................................................................................................................................25 7.5. POWER MANAGEMENT...............................................................................................................................................25 7.5.1. System Power State Definitions............................................................................................................................25 7.5.2. Power Controls in NID 01h..................................................................................................................................26 7.5.3. Powered Down Conditions...................................................................................................................................26 8. SUPPORTED VERBS AND PARAMETERS................................................................................................................27 8.1. VERB – GET PARAMETERS (VERB ID=F00H).............................................................................................................27 8.1.1. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)............................................................................27 8.1.2. Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)..........................................................................27 8.1.3. Parameter – Subordinate Node Count (Verb ID=F00h, Parameter ID=04h) .....................................................28 8.1.4. Parameter – Function Group Type (Verb ID=F00h, Parameter ID=05h) ..........................................................28 8.1.5. Parameter – Audio Function Capabilities (Verb ID=F00h, Parameter ID=08h) ...............................................29 8.1.6. Parameter – Audio Widget Capabilities (Verb ID=F00h, Parameter ID=09h) ..................................................29 8.1.7. Parameter – Supported PCM Size, Rates (Verb ID=F00h, Parameter ID=0Ah) ................................................30 8.1.8. Parameter – Supported Stream Formats (Verb ID=F00h, Parameter ID=0Bh) .................................................31 |
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