CS47L85 datasheet(4/370 Pages) CIRRUS

4 / 370 page

CS47L85

Rev 4.3

HAPTIC SIGNAL GENERATOR .................................................................................................................................................................................. 101

PWM GENERATOR..................................................................................................................................................................................................... 103

SAMPLE RATE CONTROL ......................................................................................................................................................................................... 106

ASYNCHRONOUS SAMPLE RATE CONVERTER (ASRC) ....................................................................................................................................... 116

ISOCHRONOUS SAMPLE RATE CONVERTER (ISRC) ............................................................................................................................................ 120

DSP FIRMWARE CONTROL

.........................................................................................................................127

DSP FIRMWARE MEMORY AND REGISTER MAPPING .......................................................................................................................................... 127

DSP FIRMWARE CONTROL....................................................................................................................................................................................... 130

DSP DIRECT MEMORY ACCESS (DMA) CONTROL ................................................................................................................................................ 134

DSP INTERRUPTS...................................................................................................................................................................................................... 137

DSP DEBUG SUPPORT.............................................................................................................................................................................................. 139

VIRTUAL DSP REGISTERS........................................................................................................................................................................................ 139

DSP PERIPHERAL CONTROL

.....................................................................................................................140

MASTER INTERFACES .............................................................................................................................................................................................. 140

EVENT LOGGERS ...................................................................................................................................................................................................... 146

GENERAL PURPOSE TIMERS................................................................................................................................................................................... 155

DSP GPIO.................................................................................................................................................................................................................... 159

AMBIENT NOISE CANCELLATION

..............................................................................................................165

DIGITAL AUDIO INTERFACE

.......................................................................................................................166

MASTER AND SLAVE MODE OPERATION ............................................................................................................................................................... 167

AUDIO DATA FORMATS............................................................................................................................................................................................. 167

AIF TIMESLOT CONFIGURATION ............................................................................................................................................................................. 169

TDM OPERATION BETWEEN THREE OR MORE DEVICES .................................................................................................................................... 171

DIGITAL AUDIO INTERFACE CONTROL

.....................................................................................................173

AIF SAMPLE RATE CONTROL................................................................................................................................................................................... 173

AIF PIN CONFIGURATION ......................................................................................................................................................................................... 173

AIF MASTER / SLAVE CONTROL .............................................................................................................................................................................. 174

AIF SIGNAL PATH ENABLE........................................................................................................................................................................................ 177

AIF BCLK AND LRCLK CONTROL ............................................................................................................................................................................. 180

AIF DIGITAL AUDIO DATA CONTROL ....................................................................................................................................................................... 185

AIF TDM AND TRI-STATE CONTROL ........................................................................................................................................................................ 189

SLIMBUS INTERFACE

..................................................................................................................................191

SLIMBUS DEVICES..................................................................................................................................................................................................... 191

SLIMBUS FRAME STRUCTURE................................................................................................................................................................................. 191

CONTROL SPACE ...................................................................................................................................................................................................... 191

DATA SPACE .............................................................................................................................................................................................................. 192

SLIMBUS CONTROL SEQUENCES

.............................................................................................................193

DEVICE MANAGEMENT & CONFIGURATION .......................................................................................................................................................... 193

INFORMATION MANAGEMENT ................................................................................................................................................................................. 193

VALUE MANAGEMENT (INCLUDING REGISTER ACCESS) .................................................................................................................................... 194

FRAME & CLOCKING MANAGEMENT ...................................................................................................................................................................... 194

DATA CHANNEL CONFIGURATION .......................................................................................................................................................................... 194

SLIMBUS INTERFACE CONTROL

...............................................................................................................195

SLIMBUS DEVICE PARAMETERS ............................................................................................................................................................................. 195

SLIMBUS MESSAGE SUPPORT ................................................................................................................................................................................ 195

SLIMBUS PORT NUMBER CONTROL ....................................................................................................................................................................... 198

SLIMBUS SAMPLE RATE CONTROL......................................................................................................................................................................... 198

SLIMBUS SIGNAL PATH ENABLE ............................................................................................................................................................................. 199

SLIMBUS CONTROL REGISTER ACCESS ............................................................................................................................................................... 200

SLIMBUS CLOCKING CONTROL ............................................................................................................................................................................... 202

OUTPUT SIGNAL PATH

................................................................................................................................204

OUTPUT SIGNAL PATH ENABLE .............................................................................................................................................................................. 206

OUTPUT SIGNAL PATH SAMPLE RATE CONTROL................................................................................................................................................. 208

OUTPUT SIGNAL PATH CONTROL ........................................................................................................................................................................... 208

OUTPUT SIGNAL PATH DIGITAL FILTER CONTROL .............................................................................................................................................. 210

OUTPUT SIGNAL PATH DIGITAL VOLUME CONTROL............................................................................................................................................ 212

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