Page 0 Registers
Page 0 / Register 67: Headset Detection Configuration Register - 0x00 / 0x43 (continued)
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D1-D0
R/W
00
Headset Button Press Debounce Programmability
00: Debounce disabled
01: Debounce Time = 8ms
10: Debounce Time = 16ms
11: Debounce Time = 32ms
Note: All times are typical values
5.2.62
Page 0 / Register 68: DRC Control Register 1 - 0x00 / 0x44
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R
0
Reserved. Write only default value
D6
R/W
1
DRC Enable Control
0: Left Channel DRC disabled
1: Left Channel DRC enabled
D5
R/W
1
DRC Enable Control
0: Right Channel DRC disabled
1: Right Channel DRC enabled
D4-D2
R/W
011
DRC Threshold control
000: DRC Threshold = -3dBFS
001: DRC Threshold = -6dBFS
010: DRC Threshold = -9dBFS
011: DRC Threshold = -12dBFS
100: DRC Threshold = -15dBFS
101: DRC Threshold = -18dBFS
110: DRC Threshold = -21dBFS
111: DRC Threshold = -24dBFS
D1-D0
R/W
11
DRC Hysteresis Control
00: DRC Hysteresis = 0dB
01: DRC Hysteresis = 1dB
10: DRC Hysteresis = 2dB
11: DRC Hysteresis = 3dB
5.2.63
Page 0 / Register 69: DRC Control Register 2 - 0x00 / 0x45
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R
0
Reserved. Write only default value.
D6-D3
R/W
0111
DRC Hold Programmability
0000: DRC Hold Disabled
0001: DRC Hold Time = 32 DAC Word Clocks
0010: DRC Hold Time = 64 DAC Word Clocks
0011: DRC Hold Time = 128 DAC Word Clocks
0100: DRC Hold Time = 256 DAC Word Clocks
0101: DRC Hold Time = 512 DAC Word Clocks
...
1110: DRC Hold Time = 4*32768 DAC Word Clocks
1111: DRC Hold Time = 5*32768 DAC Word Clocks
D2-D0
R/W
000
Reserved. Write only default values
5.2.64
Page 0 / Register 70: DRC Control Register 3 - 0x00 / 0x46
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7-D4
R/W
0000
DRC Attack Rate control
0000: DRC Attack Rate = 4.0dB per DAC Word Clock
0001: DRC Attack Rate = 2.0dB per DAC Word Clock
0010: DRC Attack Rae = 1.0dB per DAC Word Clock
…
1110: DRC Attack Rate = 2.4414e-4dB per DAC Word Clock
1111: DRC Attack Rate = 1.2207e-4dB per DAC Word Clock
94
Register Map
SLAU434 – May 2012
Copyright © 2012, Texas Instruments Incorporated