WM8904 Datasheet, PDF (176/188 Pages) Wolfson Microelectronics plc – Ultra Low Power CODEC for Portable Audio Applications

WM8904
Pre-Production
REGISTER BIT
LABEL
ADDRESS
R130 (82h)
9
GPIO_BCLK_EI
Interrupt
NT_DB
Debounce
8 WSEQ_EINT_D
B
7 GPIO3_EINT_D
B
6 GPIO2_EINT_D
B
5 GPIO1_EINT_D
B
4
GPI8_EINT_DB
3
GPI7_EINT_DB
2 FLL_LOCK_EIN
T_DB
1 MIC_SHRT_EIN
T_DB
0 MIC_DET_EINT
_DB
Register 82h Interrupt Debounce
DEFAULT
DESCRIPTION
0
GPIO4 interrupt debounce
0 = disabled
1 = enabled
0
Write Sequencer interrupt debounce enable
0 = disabled
1 = enabled
0
GPIO3 input debounce
0 = disabled
1 = enabled
0
GPIO2 input debounce
0 = disabled
1 = enabled
0
GPIO1 input debounce
0 = disabled
1 = enabled
0
GPI8 input debounce
0 = disabled
1 = enabled
0
GPI7 input debounce
0 = disabled
1 = enabled
0
FLL Lock debounce
0 = disabled
1 = enabled
0
MICBIAS short circuit interrupt debounce
0 = disabled
1 = enabled
0
MICBIAS current detect interrupt debounce
0 = disabled
1 = enabled
REGISTER BIT
ADDRESS
R134 (86h)
0
EQ1
Register 86h EQ1
LABEL
EQ_ENA
DEFAULT
DESCRIPTION
0
EQ enable
0 = EQ disabled
1 = EQ enabled
REGISTER BIT
ADDRESS
R135 (87h) 4:0
EQ2
Register 87h EQ2
LABEL
DEFAULT
DESCRIPTION
EQ_B1_GAIN
[4:0]
0_1100
Gain for EQ band 1
00000 = -12dB
00001 = -11dB
(… 1dB steps)
01100 = 0dB
(… 1dB steps)
11000 = +12dB
11001 to 11111 = reserved
REFER TO
Interrupts
Interrupts
Interrupts
Interrupts
Interrupts
Interrupts
Interrupts
Interrupts
Interrupts
Interrupts
REFER TO
ReTune^TM Mobile
Parametric
Equalizer (EQ)
REFER TO
ReTune^TM Mobile
Parametric
Equalizer (EQ)
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PP, Rev 3.3, September 2012
176