
STV82x7
4/149
4.15
Beeper ................................................................................................................................37
Chapter 5
Analog Audio Matrix (In / Out) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Chapter 6
I2S Interface (In / Out) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
6.1
I2S Inputs ............................................................................................................................40
6.2
I2S Output ...........................................................................................................................41
Chapter 7
S/PDIF Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Chapter 8
Power Supply Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
8.1
Standby Mode (Loop-through mode) .................................................................................43
Chapter 9
Additional Controls and Flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
9.1
Headphone Detection ........................................................................................................44
9.2
IRQ Generation ..................................................................................................................44
9.3
I2C Bus Expander ...............................................................................................................44
Chapter 10
STV82x7 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Chapter 11
I2C Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
11.1
I2C Address and Protocol ...................................................................................................46
11.2
Start-up and Configuration Change Procedure ..................................................................47
Chapter 12
Register List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
12.1
I2C Register Map ................................................................................................................49
12.2
STV82x7 General Control Registers ..................................................................................55
12.3
Clocking 1 ..........................................................................................................................56
12.4
Demodulator .......................................................................................................................59
12.5
Demodulator Channel 1 .....................................................................................................62
12.6
Demodulator Channel 2 .....................................................................................................66
12.7
NICAM Registers ...............................................................................................................71
12.8
Stereo Mode .......................................................................................................................73
12.9
Analog Control ...................................................................................................................74
12.10
Clocking 2 ..........................................................................................................................76
12.11
DSP Control .......................................................................................................................77