CS4298 Datasheet, PDF (3/52 Pages) Cirrus Logic – SoundFusion Audio/Modem Codec 97 (AMC 97)

CS4298
5.5 AC ’97 Reset Modes......................................................................................................... 20
5.5.1 Cold AC ‘97 Reset................................................................................................... 20
5.5.2 Warm AC ’97 Reset ................................................................................................ 20
5.5.3 AC ’97 Register Reset............................................................................................. 20
5.6 AC-Link Protocol Violation - Loss of SYNC ...................................................................... 20
6. REGISTER INTERFACE ........................................................................................................ 21
6.1 Register Descriptions ....................................................................................................... 23
6.1.1 Reset (Index 00h) ......................................................................................................... 23
6.1.2 Master Volume (Index 02h) .......................................................................................... 23
6.1.3 Alternate Volume (Index 04h) ....................................................................................... 24
6.1.4 Microphone Volume (Index 0Eh) ................................................................................... 24
6.1.5 Stereo Analog Mixer Input Gain (Index’s 10h - 18h) ..................................................... 25
6.1.6 Input Mux Select (Index 1Ah) ........................................................................................ 25
6.1.7 Record Gain (Index 1Ch)............................................................................................... 26
6.1.8 Record Gain Microphone (Index 1Eh) ........................................................................... 26
6.1.9 General Purpose (Index 20h) ........................................................................................ 26
6.1.10 3D Control (Index 22h) ................................................................................................ 26
6.1.11 Power Down Control/Status (Index 26h) ..................................................................... 27
6.1.12 Extended Audio ID (Index 28h) .................................................................................. 28
6.1.13 Extended Audio Status / Control (Index 2Ah) ............................................................. 28
6.1.14 PCM Front DAC Rate (Index 2Ch) ........................................................................... 29
6.1.15 PCM Surround DAC Rate (Index 2Eh) ..................................................................... 29
6.1.16 PCM LFE DAC Rate (Index 30h) .............................................................................. 29
6.1.17 PCM LR ADC Rate (Index 32h)................................................................................... 29
6.1.18 PCM MIC ADC Rate (Index 34h)................................................................................. 29
6.1.19 Center LFE Volume (Index 36h) .................................................................................. 30
6.1.20 LR Surround Volume (Index 38h) ................................................................................ 30
6.1.21 Extended Modem ID (Index 3Ch) ............................................................................... 30
6.1.22 Extended Modem ID (Index 3Eh) ............................................................................... 31
6.1.23 Line 1 DAC/ADC Rate (Index 40h) .............................................................................. 31
6.1.24 Line 2 DAC/ADC Rate (Index 42h) .............................................................................. 31
6.1.25 Handset DAC/ADC Rate (Index 44h) .......................................................................... 32
6.1.26 Line 1 DAC/ADC Level (Index 46h) ............................................................................. 32
6.1.27 Line 2 DAC/ADC Level (Index 48h) ............................................................................. 32
6.1.28 Handset DAC/ADC Level (Index 4Ah) ......................................................................... 32
6.1.29 GPIO Pin Configuration (Index 4Ch) ........................................................................... 33
6.1.30 GPIO Pin Polarity/Type Configuration (Index 4Eh) ..................................................... 33
6.1.31 GPIO Pin Sticky (Index 50h)........................................................................................ 33
6.1.32 GPIO Pin Wakeup Mask (Index 4Ch) ......................................................................... 34
6.1.33 GPIO Pin Status (Index 54h) ....................................................................................... 34
6.1.34 Misc. Modem AFE Status (Index 56h) ........................................................................ 34
6.1.35 AC Mode Control (Index 5Eh) ..................................................................................... 35
6.1.36 S/PDIF Control (Index 68h) ......................................................................................... 35
6.1.37 Vendor ID1 (Index 7Ch)............................................................................................... 36
6.1.38 Vendor ID2 (Index 7Eh) ............................................................................................... 36
7. ANALOG HARDWARE DESCRIPTION ................................................................................. 37
7.1 Line-Level Inputs .............................................................................................................. 37
7.2 Microphone Level Inputs .................................................................................................. 38
7.3 Line Level Outputs............................................................................................................ 38
7.4 Consumer IEC-958 Digital Interface (S/PDIF) .................................................................. 39
7.5 Miscellaneous Analog Signals .......................................................................................... 39
7.6 Power Supplies................................................................................................................. 40
7.7 Hybrid Interface ................................................................................................................ 41
DS315PP2
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