CS4201 datasheet(3/68 Pages) CIRRUS

3 / 68 page

CS4201

DS483PP3

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

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