wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 167

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

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Pre-Production
R12 (0Ch)
Left DAC
Digital Volume
R13 (0Dh)
Right DAC
Digital Volume
R14 (0Eh)
Digital
Sidetone
R15 (0Fh)
ADC Control
REGISTER
ADDRESS
1
0
15:9
8
7:0
15:9
8
7:0
15:13
12:9
8:5
4
3:2
1:0
15:9
8
7
6:5
4:2
1
BIT
DACL_DATINV
DACR_DATINV
DAC_VU
DACL_VOL
[7:0]
DAC_VU
DACR_VOL
[7:0]
ADCL_DAC_SVOL
[3:0]
ADCR_DAC_SVOL
[3:0]
ADC_TO_DACL
[1:0]
ADC_TO_DACR
[1:0]
ADC_HPF_ENA
ADC_HPF_CUT
[1:0]
ADCL_DATINV
LABEL
0b
0b
00h
N/A
1100_000
0b
(0dB)
00h
N/A
1100_
0000b
(0dB)
000b
0000b
0000b
0b
00b
00b
00h
1b
0b
00b
000b
0b
DEFAULT
Left DAC Invert
0 = Left DAC output not inverted
1 = Left DAC output inverted
Right DAC Invert
0 = Right DAC output not inverted
1 = Right DAC output inverted
Reserved - Do Not Change
DAC Volume Update
Writing a 1 to this bit will cause left and right DAC volume to
be updated simultaneously
Left DAC Digital Volume
(See Table 43 for volume settings)
Reserved - Do Not Change
DAC Volume Update
Writing a 1 to this bit will cause left and right DAC volume to
be updated simultaneously
Right DAC Digital Volume
(See Table 43 for volume settings)
Reserved - Do Not Change
Left Channel Digital Sidetone Volume
(See Table 40 for volume range)
Right Channel Digital Sidetone Volume
(See Table 40 for volume range)
Reserved - Do Not Change
Left DAC Digital Sidetone Source
00 = No sidetone
01 = Left ADC
10 = Right ADC
11 = Reserved
Right DAC Digital Sidetone Source
00 = No sidetone
01 = Left ADC
10 = Right ADC
11 = Reserved
Reserved - Do Not Change
ADC Digital High Pass Filter Enable
0 = disabled
1 = enabled
Reserved - Do Not Change
ADC Digital High Pass Filter Cut-Off Frequency (fc)
00 = Hi-fi mode (fc=4Hz at fs=48kHz)
01 = Voice mode 1 (fc=127Hz at fs=16kHz)
10 = Voice mode 2 (fc=130Hz at fs=8kHz)
11 = Voice mode 3 (fc=267Hz at fs=8kHz)
(Note: fc scales with sample rate. See Table 36 for cut-off
frequencies at all supported sample rates)
Reserved - Do Not Change
Left ADC Invert
0 = Left ADC output not inverted
1 = Left ADC output inverted
DESCRIPTION
PP, April 2009, Rev 3.0
WM8400
167