AS3525-A/-B C22O22
Data Sheet, Confidential
1
MIC1_connect
(level)
0
x
W
R
Microphone 1 connect detection interrupt setting
0: disable
1: enable
Microphone 1 connect detection interrupt reading
0: no microphone connected to MIC1 input
1: microphone connected at MIC1 input.
IRQ will be released after enabling the microphone stage.
Detecting a microphone during operation has to be done by
measuring the supply current.
0
HPH_connect
(level)
0
x
W
R
Headphone connect detection interrupt setting
0: disable
1: enable
Headphone connect detection interrupt reading
0: no headphone connected
1: headphone connected
IRQ will be released after enabling the headphone stage.
Detecting a headphone during operation is not possible.
Table 147 Third Interrupt Register
Name
Base
Default
0x00
IRQ_ENRD_2
I2C audio master
Third Interrupt Register
Please be aware that writing to this register will enable/disable the corresponding
interrupts, while with reading you get the actual interrupt status and will clear the
register at the same time. It is not possible to read back the interrupt enable/disable
settings. This register is reset at a DVDD-POR.
Offset: 0x27
Bit
Bit Name
T_deb<1:0>
Default
00
Access
Bit Description
7:6
R/W
Sets the USB and Charger connect de-bounce time:
00: 512ms
01: 256ms
10: 128ms
11: not defined
5
4
3
IRQ_Acthigh
0
0
0
x
R/W
R/W
W
Sets the active output state of the INTRQ line:
0: IRQ is active low
1: IRQ is active high
Sets the INTRQ output buffer type:
0: IRQ output is open drain
1: IRQ output is push pull
Microphone 2 remote key press detection interrupt setting
0: disable
IRQ_PushPull
Remote_Det2
(edge)
1: enable
R
Microphone 2 remote key press detection interrupt reading
0: no key press detected
1: Microphone 2 supply current got increased, remote key
press detected -> measure MSUP2 supply current
Microphone 1 remote key press detection interrupt setting
0: disable
2
1
Remote_Det1
(edge)
0
x
W
R
1: enable
Microphone 1 remote key press detection interrupt reading
0: no key press detected
1: Microphone 1 supply current got increased, remote key
press detected -> measure MSUP1 supply current
RTC timer interrupt setting
RTC_update
(edge)
0
W
0: disable
1: enable
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