Pre-Production
WM8904
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
GPIO2 interrupt polarity
0 = active high
6
GPIO2_EINT_POL
0
1 = active low
GPIO1 interrupt polarity
0 = active high
5
4
3
2
GPIO1_EINT_POL
GPI8_EINT_POL
0
0
0
0
1 = active low
GPI8 interrupt polarity
0 = active high
1 = active low
GPI7 interrupt polarity
0 = active high
GPI7_EINT_POL
1 = active low
FLL Lock interrupt polarity
FLL_LOCK_EINT_POL
0 = active high (interrupt is
triggered when FLL Lock is
reached)
1 = active low (interrupt is
triggered when FLL is not
locked)
MICBIAS short circuit interrupt
polarity
1
0
MIC_SHRT_EINT_POL
MIC_DET_EINT_POL
0
0
0 = active high
1 = active low
MICBIAS current detect
interrupt polarity
0 = active high
1 = active low
Table 81 Interrupt Polarity Registers
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R130 (82h)
Interrupt
Debounce
GPIO4 interrupt debounce
0 = disabled
9
GPIO_BCLK_EINT_DB
0
1 = enabled
Write Sequencer interrupt
debounce enable
8
WSEQ_EINT_DB
0
0 = disabled
1 = enabled
GPIO3 input debounce
0 = disabled
7
6
5
4
GPIO3_EINT_DB
GPIO2_EINT_DB
GPIO1_EINT_DB
GPI8_EINT_DB
0
0
0
0
1 = enabled
GPIO2 input debounce
0 = disabled
1 = enabled
GPIO1 input debounce
0 = disabled
1 = enabled
GPI8 input debounce
0 = disabled
1 = enabled
PP, Rev 3.3, September 2012
121
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
