wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 163

• 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
R06 (06h)
Audio
Interface (2)
R07 (07h)
Clocking (1)
REGISTER
ADDRESS
4:3
2:0
15
14
13
12
11:10
9:5
4
3
2
1
0
15
14
13
BIT
AIF_FMT
[1:0]
DACL_SRC
DACR_SRC
AIFDAC_TDM
AIFDAC_TDM_CHA
N
DAC_BOOST
[1:0]
DAC_COMP
DAC_COMPMODE
ADC_COMP
ADC_COMPMODE
LOOPBACK
TOCLK_RATE
TOCLK_ENA
LABEL
10b
0b
0b
1b
0b
0b
00b
0b
0b
0b
0b
0b
0b
0b
DEFAULT
Digital Audio Interface Format
00 = Right justified
01 = Left justified
10 = I
11 = DSP Mode
Reserved - Do Not Change
Left DAC Data Source Select
0 = Left DAC outputs left channel data
1 = Left DAC outputs right channel data
Right DAC Data Source Select
0 = Right DAC outputs left channel data
1 = Right DAC outputs right channel data
DAC TDM Enable
0 = Normal DACDAT operation
1 = TDM enabled on DACDAT
DACDAT TDM Channel Select
0 = DACDAT data input on slot 0
1 = DACDAT data input on slot 1
DAC Input Volume Boost
00 = 0dB
01 = +6dB (Input data must not exceed -6dBFS)
10 = +12dB (Input data must not exceed -12dBFS)
11 = +18dB (Input data must not exceed -18dBFS)
Reserved - Do Not Change
DAC Companding Enable
0 = disabled
1 = enabled
DAC Companding Type
0 = µ-law
1 = A-law
ADC Companding Enable
0 = disabled
1 = enabled
ADC Companding Type
0 = µ-law
1 = A-law
Digital Loopback Function
0 = No loopback
1 = Loopback enabled (ADC data output is directly input to
DAC data input).
Note: ADC and DAC left/right clocks must be set to the same
pin when using LOOPBACK function (ALRCGPIO1=1)
Timeout Clock Rate
(Selects clock to be used for volume update timeout and
GPIO input de-bounce)
0 = SYSCLK / 2
1 = SYSCLK / 2
Timeout Clock Enable
(This clock is required for volume update timeout and GPIO
input de-bounce)
0 = disabled
1 = enabled
Reserved - Do Not Change
2
S Format
21
19
(Slower Response)
(Faster Response)
DESCRIPTION
PP, April 2009, Rev 3.0
WM8400
163