WM8940
Pre-Production
REGISTER
ADDRESS
BIT
LABEL
NF0_A1
DEFAULT
DESCRIPTION
Notch Filter 0 a1 coefficient
REFER TO
13:0
0000h
Analogue to
Digital Converter
(ADC)
18 (12h)
15
14
NF1_UP
NF1_EN
0
0
Notch filter 1 update. The notch filter 1 values used
internally only update when one of the NFU bits is set Digital Converter
high.
Analogue to
(ADC)
Analogue to
Digital Converter
(ADC)
Notch Filter 1 enable.
0=Disabled
1=Enabled
13:0
15
NF1_A0
NF1_UP
0000h
0
Notch Filter 1 a0 coefficient
Analogue to
Digital Converter
(ADC)
19 (13h)
Notch filter 1 update. The notch filter 1 values used
Analogue to
internally only update when one of the NFU bits is set Digital Converter
high.
(ADC)
14
0
Reserved
13:0
NF1_A1
NF2_UP
NF2_EN
0000h
Notch Filter 1 a1 coefficient
Analogue to
Digital Converter
(ADC)
20 (14h)
15
14
0
0
Notch filter 2 update. The notch filter 2 values used
internally only update when one of the NFU bits is set Digital Converter
high.
Analogue to
(ADC)
Analogue to
Digital Converter
(ADC)
Notch Filter 2 enable.
0=Disabled
1=Enabled
13:0
15
NF2_A0
NF2_UP
0000h
0
Notch Filter 2 a0 coefficient
Analogue to
Digital Converter
(ADC)
21 (15h)
Notch filter 2 update. The notch filter 2 values used
Analogue to
internally only update when one of the NFU bits is set Digital Converter
high.
(ADC)
14
0
Reserved
13:0
NF2_A1
NF3_UP
NF3_EN
0000h
Notch Filter 2 a1 coefficient
Analogue to
Digital Converter
(ADC)
22 (16h)
15
14
0
0
Notch filter 3 update. The notch filter 3 values used
internally only update when one of the NFU bits is set Digital Converter
high.
Analogue to
(ADC)
Analogue to
Digital Converter
(ADC)
Notch Filter 3 enable.
0=Disabled
1=Enabled
13:0
15
NF3_A0
NF3_UP
NF3_LP
0000h
Notch Filter 3 a0 coefficient
Analogue to
Digital Converter
(ADC)
23 (17h)
0
0
Notch filter 3 update. The notch filter 3 values used
internally only update when one of the NFU bits is set Digital Converter
high.
Analogue to
(ADC)
14
Analogue to
Digital Converter
(ADC)
Notch Filter 3 mode select
0 = Notch Filter mode
1 = Low Pass Filter mode
13:0
15:9
NF3_A1
0000h
00h
Notch Filter 3 a1 coefficient
Analogue to
Digital Converter
(ADC)
24 (18h)
Reserved
Pre-Production, Rev 3.0, February 2007
72
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
