ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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NCE
M
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VAD Status Register 0 (VAD_STATUS0)
Register
Offset
R/W Description
Reset Value
VAD_STATUS0
0x20
R
VAD Status Read-Back Register 0
0x0000_0000
31
30
29
28
27
26
25
24
ACTIVE
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
STP
7
6
5
4
3
2
1
0
STP
Bits
Description
[31]
ACTIVE
VAD Activation Flag (Read Only)
When the voice active event occurs, this bit will be set to 1.
0 = No effect.
1 = Voice detected.
Note:
When wake-up from idle mode, user need to set CHENn DMIC_CTL[3:0] for DMIC
path normal operation.
[30:16]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write
with reset value.
[15:0]
STP
Short Term Signal Power (Read Only)
This field shows the short term signal power value.
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