SN32F100 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 149
Version 1.9
(SAT_TH) bit streams are saturating, then the internal gain will be
adjusted rapidly to avoid the ADC output saturation.
13.7.13 ADC Setting 13 register (ADC_SET13)
Address Offset: 0x600
Bit
Name
Description
Attribute
Reset
31:4
Reserved
R
0
3:0
SAT_POD
AGC Control.
The detection period for ADC saturation condition.
Fs : Sampling rate
0000: 1/Fs x 2^(0)
0001: 1/Fs x 2^(1)
…….
1110: 1/Fs x 2^(14)
1111: 1/Fs x 2^(15)
R/W
0x0A
13.7.14 ADC Setting 14 register (ADC_SET14)
Address Offset: 0x610
Bit
Name
Description
Attribute
Reset
31:8
Reserved
R
0
7
AGC_OFF
AGC Control
AGC function
0: Enable
1: Disable
R/W
0x01
6:5
BOOST_SET_VAL
AGC Control
Boost setting value at normal mode when AGC is on.
00: +0dB
01:+12dB
10: +20dB
11:+30dB
R/W
0x03
4:0
PGA_SET_VAL
AGC Control.
PGA setting value at normal mode when AGC
is on (1.5dB/step).
00000: Mute
00001: -12dB
01001: 0dB
……
11110: +31.5dB
11111: +33dB
R/W
0x10
13.7.15 ADC Setting 15 register (ADC_SET15)
Address Offset: 0x620
Bit
Name
Description
Attribute
Reset
31:3
Reserved
R
0
2
ACTIVE
Digital Audio Interface Control.
0: Disable
1: Enable
R/W
0x01
1:0
IWL
Word length of DA interface.
00: 16-bits
01: 18-bits
10: 20-bits
11: 24-bits
R/W
0x03
13.7.16 ADC Setting 16 register (ADC_SET16)
Address Offset: 0x630
Bit
Name
Description
Attribute
Reset
31:7
Reserved
R
0
6:5
BOOST
Boost setting value when AGC is off
00: +0dB
01: +12dB
R/W
0x00