CS4298

DS315PP2

3

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