WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 129

• Manufacturer Part Number: WM8959
• Description: Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
• Manufacturer: Wolfson Microelectronics Ltd.

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Pre-Production
R04 (04h)
Audio
Interface (1)
R05 (05h)
Audio
Interface (2)
REGISTER
ADDRESS
3:2
1
0
15:9
8
7
6:5
4:3
2:0
15
14
13
12
11:10
9:5
4
3
BIT
DACL_ENA
(rw)
DACR_ENA
(rw)
AIF_BCLK_INV
AIF_LRCLK_INV
AIF_WL
[1:0]
AIF_FMT
[1:0]
DACL_SRC
DACR_SRC
AIFDAC_TDM
AIFDAC_TDM_
CHAN
DAC_BOOST
[1:0]
DAC_COMP
DAC_COMPMODE
LABEL
00b
0b
0b
0100000b
0b
0b
10b
10b
000b
0b
1b
0b
0b
00b
00000b
0b
0b
DEFAULT
Reserved - Do Not Change
Left DAC Enable
0 = disabled
1 = enabled
Right DAC Enable
0 = disabled
1 = enabled
Reserved - Do Not Change
BCLK Invert
0 = BCLK not inverted
1 = BCLK inverted
Right, left and I
0 = normal DACLRC polarity
1 = invert DACLRC polarity
DSP Mode – mode A/B select
0 = MSB is available on 2nd BCLK rising edge after DACLRC
rising edge (mode A)
1 = MSB is available on 1st BCLK rising edge after DACLRC
rising edge (mode B)
Digital Audio Interface Word Length
00 = 16 bits
01 = 20 bits
10 = 24 bits
11 = 32 bits
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
2
S Format
2
S modes – DACLRC polarity
DESCRIPTION
PP, May 2008, Rev 3.1
WM8959
129