User Manual

CS4202
DS549PP2 3
4.4 PC_BEEP Volume Register (Index 0Ah).......................................................................... 24
4.5 Phone Volume Register (Index 0Ch)...... .... ... ... ... .... ... ... ... .... ... ... ... ... .... ... ... ... .... ... ............ 24
4.6 Microphone Volume Register (Index 0Eh)........................................................................ 25
4.7 Analog Mixer Input Gain Registers (Index 10h - 18h) ...................................................... 26
4.8 Input Mux Select Register (Index 1Ah)............................................................................. 27
4.9 Record Gain Register (Index 1Ch) ...... ... .......................................................................... 28
4.10 General Purpose Register (Index 20h) ............................................. ................... ......... 29
4.11 Powerdown Control/Status Register (Index 26h) ........................................................... 30
4.12 Extended Audio ID Register (Index 28h) ........................................................................ 31
4.13 Extended Audio Status/Control Register (Index 2Ah) .................................................... 32
4.14 Audio Sample Rate Control Registers (Index 2Ch - 32h) ......... ... ... .... ... ... ... .... ............... 33
4.15 S/PDIF Control Register (Index 3Ah) ............................................................................. 34
4.16 Extended Modem ID Register (Index 3Ch) .................................................................... 35
4.17 Extended Modem Status/Control Register (Index 3Eh) ................................................. 35
4.18 GPIO Pin Configuration Register (Index 4Ch) ................................................................ 35
4.19 GPIO Pin Polarity/Type Configuration Register (Index 4Eh) .......................................... 36
4.20 GPIO Pin Sticky Register (Index 50h) ............................................................................ 36
4.21 GPIO Pin Wakeup Mask Register (Index 52h) ............................................................... 37
4.22 GPIO Pin Status Register (Index 54h)............................................................................ 37
4.23 AC Mode Control Register (Index 5Eh) .......................................................................... 37
4.24 Misc. Crystal Control Register (Index 60h) ..................................................................... 39
4.25 Serial Port Control Register (Index 6Ah) ........................................................................ 40
4.26 BIOS-Driver Interface Control Registers (Index 70h - 72h) ............................................ 41
4.27 BIOS-Driver Interface Status Register (Index 7Ah) ........................................................ 41
4.28 Vendor ID1 Register (Index 7Ch) ................................................................................... 42
4.29 Vendor ID2 Register (Index 7Eh) ................................................................................... 42
5. SERIAL DATA PORTS ........................................................................................................... 43
5.1 Overview ... ... .... ... ... ... .... ... ... ................................................................. ... ... ... .... ... ... ......... 43
5.2 Multi-Channel Expansion .... ... .... ... ... ... ... .... ... ... ... .................... ... ................... .... ............... 43
5.3 Serial Data Formats ......................... ................... .................................... ......................... 44
6. SONY/PHILIPS DIGITAL INTERFACE (S/PDIF) ................................................................... 45
7. EXCLUSIVE FUNCTIONS ...................................................................................................... 45
8. POWER MANAGEMENT ....................................................................................................... 46
8.1 AC ’97 Reset Modes ........................................................................................................ 46
8.1.1 Cold Reset .................... ................ ... ... ... .... ... ... ... ................ .... ... ... ... .... ... ... ......... 46
8.1.2 Warm Reset ........... ... .... ................................ ... ... .... ... ... ... ... .... ............................ 46
8.1.3 New Warm Reset ................... ... .... ... ................................................................ ... 46
8.1.4 Register Reset .................... ... ... .... ...................................................................... 46
8.2 Powerdown Controls ............. .... ... ... ... ... .................... ... ................... .... ................... ... ... ... 47
9. CLOCKING ............................................................................................................................. 49
9.1 PLL Operation (External Clock) ....................................................................................... 49
9.2 24.576 MHz Crystal Operation ........................................................................................ 49
9.3 Secondary Codec Operation ........................................................................................... 49
10. ANALOG HARDWARE DESCRIPTION ............................................................................... 51
10.1 Analog Inputs ................................................................................................................. 51
10.1.1 Line Inputs ........................................................................................................ 51
10.1.2 CD Input ............................................................................................................ 51
10.1.3 Microphone Inputs ............................................................................................ 51
10.1.4 PC Beep Input ................................................................................................... 52
10.1.5 Phone Input ....................................................................................................... 52
10.2 Analog Outputs .............................................................................................................. 52
10.2.1 Stereo Outputs .................................................................................................. 52
10.2.2 Mono Output ..................................................................................................... 53
10.3 Miscellaneous Analog Signals ....................................................................................... 53