WM8850 View Datasheet(PDF) - Wolfson Microelectronics plc

Part Name

Description

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WM8850

Multi-Channel High Definition Audio CODEC

Wolfson Microelectronics plc 

WM8850

Pre-Production

STEREO HEADPHONE PLAYBACK ............................................................................. 51

DAC1 (NID = 06H) ........................................................................................................................................................... 51

PORT-A (NID = 11H) ....................................................................................................................................................... 53

STEREO LINE PLAYBACK............................................................................................ 54

DAC2 (NID = 07H) AND DAC3 (NID = 08H).................................................................................................................... 54

PORT-G (NID = 12H) AND PORT-F (NID = 13H) ........................................................................................................... 56

S/PDIF RECEIVE ........................................................................................................... 57

S/PDIF IN (NID = 10H) .................................................................................................................................................... 57

S/PDIF RX (NID = 05H) ................................................................................................................................................... 60

S/PDIF RECEIVE USING SRC1 ..................................................................................................................................... 63

S/PDIF RECEIVE WITHOUT USING SRC1.................................................................................................................... 63

S/PDIF RECEIVE TO DACS ........................................................................................................................................... 64

S/PDIF TRANSMIT ........................................................................................................ 65

S/PDIF TX 1 (NID = 04H) ................................................................................................................................................ 66

S/PDIF OUT (NID = 0FH) ................................................................................................................................................ 68

S/PDIF TRANSMIT USING SRC2 ................................................................................................................................... 69

S/PDIF TRANSMIT WITHOUT USING SRC2 ................................................................................................................. 70

S/PDIF TX 2 (NID = 17H) ................................................................................................................................................ 71

ANCILLARY FUNCTIONS.............................................................................................. 73

BEEP (NID = 14H) ........................................................................................................................................................... 73

AUDIO FUNCTION GROUP (NID = 01H)........................................................................................................................ 73

UNSOLICITED RESPONSES.............................................................................. 76

GENERATING UNSOLICITED RESPONSES ............................................................... 76

PRIORITY QUEUING ...................................................................................................................................................... 76

IN-QUEUE-UPDATE........................................................................................................................................................ 76

UNSOLICITED RESPONSE TYPES.............................................................................. 78

SF = UNSOLICITED RESPONSE STATUS FLAG ......................................................................................................... 78

UF = UNSOLICITED RESPONSE UPDATE FLAG ......................................................................................................... 78

EF = UNSOLICITED RESPONSE EVENT FLAG............................................................................................................ 78

UNSOLICITED RESPONSE DEFINITIONS................................................................... 79

DETAILED VERB DESCRIPTIONS..................................................................... 85

ROOT NODE (NID = 00H) ............................................................................................. 85

AUDIO FUNCTION GROUP (NID = 01H) ...................................................................... 87

FUNCTION RESET VERB............................................................................................................................................... 87

GET PARAMETER VERB ............................................................................................................................................... 87

POWER STATE VERB .................................................................................................................................................... 89

UNSOLICITED RESPONSE VERB ................................................................................................................................. 89

GPIO DATA VERB .......................................................................................................................................................... 90

GPIO ENABLE MASK VERB........................................................................................................................................... 90

GPIO DIRECTION VERB ................................................................................................................................................ 90

GPIO WAKE ENABLE MASK VERB ............................................................................................................................... 90

GPIO UNSOLICITED ENABLE MASK VERB ................................................................................................................. 91

GPIO STICKY MASK VERB ............................................................................................................................................ 91

IMPLEMENTATION ID / SUBSYSTEM ID VERB............................................................................................................ 91

VMID CONTROL VERB (VENDOR SPECIFIC) .............................................................................................................. 92

GPIO AUTOMATIC CONTROL VERB (VENDOR-SPECIFIC) ........................................................................................ 92

UNSOLICITED RESPONSE PRIORITY CONTROL VERB (VENDOR-SPECIFIC) ........................................................ 92

ADC1 AUDIO INPUT CONVERTER WIDGET (NID = 02H)........................................... 93

STREAM FORMAT VERB ............................................................................................................................................... 93

GET PARAMETER VERB ............................................................................................................................................... 94

GET CONNECTION LIST ENTRY VERB ........................................................................................................................ 95

PROCESSING STATE VERB ......................................................................................................................................... 96

POWER STATE VERB .................................................................................................................................................... 96

CONVERTER STREAM, CHANNEL VERB .................................................................................................................... 96

UNSOLICITED RESPONSE VERB ................................................................................................................................. 97

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PP, April 2011, Rev 3.2

4

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