ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 428 -
Revision 2.4
ALC Status Register (ALC_STATUS)
Register
Offset
R/W
Description
Reset Value
ALC_STS
0x08
R/W
ALC Status Register
0x0100_0000
Table 7-17 ALC Status Register (ALC_STS, address 0x400B_0098)
31
30
29
28
27
26
25
24
Reserved
ALCGAIN
23
22
21
20
19
18
17
16
ALCGAIN
PEAKVAL[8:5]
15
14
13
12
11
10
9
8
PEAKVAL[4:0]
P2PVAL[8:6]
7
6
5
4
3
2
1
0
P2PVAL[5:0]
NOISEF
CLIPF
Bits
Description
[31:26]
Reserved
Reserved.
[25:20]
ALCGAIN
ALC GAIN
Current ADC gain setting
[19:11]
PEAKVAL
Peak Value
9 MSBs of measured absolute peak value
[10:2]
P2PVAL
Peak-to-peak Value
9 MSBs of measured peak-to-peak value
[1]
NOISEF
Noise Flag
Asserted when signal level is detected to be below NGTHBST
[0]
CLIPF
Clipping Flag
Asserted when signal level is detected to be above 87.5% of full scale
ALC Interrupt Register (ALC_INT)
Register
Offset
R/W
Description
Reset Value
ALC_INTCTL
0x0C
R/W
ALC Interrupt Control Register
0x0000_0000
Table 7-18 ALC Interrupt Enable Register (ALC_INTCTL, address 0x400B_009C)
31
30
29
28
27
26
25
24
ALCINT
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
GMINIF
GMAXIF
GDECIF
GINCIF
NGIF
PLMTIF