CS4201 Datasheet, PDF (3/68 Pages) Cirrus Logic – CrystalClear Audio Codec 97 with headphone Amplifier

CS4201
4.9 Record Gain Register (Index 1Ch) ........................................................................... 27
4.10 General Purpose Register (Index 20h) ................................................................. 28
4.11 3D Control Register (Index 22h) ............................................................................. 28
4.12 Powerdown Control/Status Register (Index 26h) ................................................... 29
4.13 Extended Audio ID Register (Index 28h) ................................................................ 30
4.14 Extended Audio Status/Control Register (Index 2Ah) ............................................ 30
4.15 Audio Sample Rate Control Registers (Index 2Ch - 32h) ....................................... 31
4.16 Extended Modem ID Register (Index 3Ch) ............................................................ 32
4.17 Extended Modem Status/Control Register (Index 3Eh) ......................................... 32
4.18 GPIO Pin Configuration Register (Index 4Ch) ........................................................32
4.19 GPIO Pin Polarity/Type Configuration Register (Index 4Eh) .................................. 33
4.20 GPIO Pin Sticky Register (Index 50h) .................................................................... 33
4.21 GPIO Pin Wakeup Mask Register (Index 52h) ...................................................... 34
4.22 GPIO Pin Status Register (Index 54h) ................................................................... 34
4.23 AC Mode Control Register (Index 5Eh) .................................................................. 35
4.24 Misc. Crystal Control Register (Index 60h) ............................................................. 36
4.25 S/PDIF Control Register (Index 68h) ...................................................................... 37
4.26 Serial Port Control Register (Index 6Ah) ................................................................ 38
4.27 Vendor ID1 Register (Index 7Ch) ........................................................................... 39
4.28 Vendor ID2 Register (Index 7Eh) ........................................................................... 39
5. SERIAL DATA PORTS ..................................................................................................... 40
5.1 Overview ................................................................................................................... 40
5.2 Multi-Channel Expansion .......................................................................................... 40
5.3 Serial Data Formats .................................................................................................. 41
6. SONY/PHILIPS DIGITAL INTERFACE (S/PDIF) ............................................................. 43
7. EXCLUSIVE FUNCTIONS ................................................................................................ 44
8. POWER MANAGEMENT ................................................................................................. 45
8.1 AC ’97 Reset Modes ................................................................................................. 45
8.1.1 Cold Reset ................................................................................................... 45
8.1.2 Warm Reset ................................................................................................. 45
8.1.3 New Warm Reset .........................................................................................45
8.1.4 Register Reset ............................................................................................. 45
8.2 Powerdown Controls ................................................................................................. 46
9. CLOCKING ....................................................................................................................... 48
9.1 PLL Operation (External Clock) ................................................................................ 48
9.2 24.576 MHz Crystal Operation ..................................................................................48
9.3 Secondary Codec Operation ..................................................................................... 48
10. ANALOG HARDWARE DESCRIPTION ......................................................................... 50
10.1Analog Inputs ............................................................................................................50
10.1.1 Line Inputs ................................................................................................. 50
10.1.2 CD Input ..................................................................................................... 50
10.1.3 Microphone Inputs ..................................................................................... 51
10.1.4 PC Beep Input ............................................................................................ 51
10.1.5 Phone Input ................................................................................................ 51
10.2Analog Outputs ......................................................................................................... 52
10.2.1 Stereo Outputs ........................................................................................... 52
10.2.2 Mono Output .............................................................................................. 52
10.3Miscellaneous Analog Signals ..................................................................................52
10.4Power Supplies ......................................................................................................... 53
10.5Reference Design ..................................................................................................... 53
11. GROUNDING AND LAYOUT ........................................................................................ 54
DS483PP3
3