CS4205
4.2.5 GPIO Pin Status (Slot 12) ............................................................................................. 22
4.3 AC-Link Protocol Violation - Loss of SYNC ..................................................................... 23
5. REGISTER INTERFACE .................................................................................................... 24
5.1 Reset Register (Index 00h) .............................................................................................. 26
5.2 Master Volume Register (Index 02h) ............................................................................... 26
5.3 Mono Volume Register (Index 06h).................................................................................. 28
5.4 Master Tone Control Register (Index 08h) ....................................................................... 28
5.5 PC_BEEP Volume Register (Index 0Ah).......................................................................... 29
5.6 Phone Volume Register (Index 0Ch)................................................................................ 29
5.7 Microphone Volume Register (Index 0Eh)........................................................................ 30
5.8 Analog Mixer Input Gain Registers (Index 10h - 18h) ...................................................... 31
5.9 Input Mux Select Register (Index 1Ah)............................................................................. 32
5.10 Record Gain Register (Index 1Ch) ................................................................................. 33
5.11 Record Gain Mic Register (Index 1Eh)........................................................................... 33
5.12 General Purpose Register (Index 20h) ......................................................................... 34
5.13 3D Control Register (Index 22h)..................................................................................... 34
5.14 Powerdown Control/Status Register (Index 26h) ........................................................... 35
5.15 Extended Audio ID Register (Index 28h)........................................................................ 36
5.16 Extended Audio Status/Control Register (Index 2Ah) .................................................... 37
5.17 Audio Sample Rate Control Registers (Index 2Ch - 34h)............................................... 38
5.18 Extended Modem ID Register (Index 3Ch) .................................................................... 39
5.19 Extended Modem Status/Control Register (Index 3Eh) ................................................. 39
5.20 GPIO Pin Configuration Register (Index 4Ch)................................................................ 39
5.21 GPIO Pin Polarity/Type Configuration Register (Index 4Eh).......................................... 40
5.22 GPIO Pin Sticky Register (Index 50h) ............................................................................ 40
5.23 GPIO Pin Wakeup Mask Register (Index 52h)............................................................... 41
5.24 GPIO Pin Status Register (Index 54h)............................................................................ 41
5.25 AC Mode Control Register (Index 5Eh).......................................................................... 41
5.26 Misc. Crystal Control Register (Index 60h)..................................................................... 44
5.27 S/PDIF Control Register (Index 68h).............................................................................. 45
5.28 Serial Port Control Register (Index 6Ah) ........................................................................ 46
5.29 Special Feature Address Register (Index 6Ch).............................................................. 47
5.30 Special Feature Data Register (Index 6Eh) ................................................................... 47
5.31 Digital Mixer Input Volume Registers (Index 6Eh, Address 00h - 05h) .......................... 47
5.32 Serial Data Port Volume Control Registers (Index 6Eh, Address 06h - 07h) ................. 48
5.33 Signal Processing Engine Control Register (Index 6Eh, Address 08h).......................... 49
5.34 Internal Error Condition Control/Status Registers (Index 6Eh, Address 09h - 0Bh)....... 50
5.35 BIOS-Driver Interface Control Registers (Index 6Eh, Address 0Ch - 0Dh) .................... 51
5.36 ZV Port Control/Status Registers (Index 6Eh, Address 0Eh - 0Fh)................................ 51
5.37 BIOS-Driver Interface Status Register (Index 7Ah)........................................................ 51
5.38 Vendor ID1 Register (Index 7Ch) ................................................................................... 53
5.39 Vendor ID2 Register (Index 7Eh) ................................................................................... 53
6. SERIAL DATA PORTS ........................................................................................................... 54
6.1 Overview .......................................................................................................................... 54
6.2 Multi-Channel Expansion ................................................................................................. 54
6.3 Digital Docking ................................................................................................................. 55
6.4 Serial Data Formats ......................................................................................................... 55
7. ZV PORT ................................................................................................................................. 57
8. SONY/PHILIPS DIGITAL INTERFACE (S/PDIF) ................................................................... 58
9. EXCLUSIVE FUNCTIONS ...................................................................................................... 58
10. POWER MANAGEMENT ..................................................................................................... 59
10.1 AC ’97 Reset Modes ...................................................................................................... 59
10.1.1 Cold Reset ........................................................................................................ 59
10.1.2 Warm Reset ...................................................................................................... 59
DS489PP4
3
CIRRUS [ CIRRUS LOGIC ]
