WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 112

• Manufacturer Part Number: WM8990ECS/RV
• Description: Audio CODECs Stereo CODEC w.Class AB/D speaker driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8990ECS/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8990
w
DIGITAL AUDIO INTERFACE CONTROL
The register bits controlling audio data format, word length, left/right channel data source and TDM
are summarised in Table 59.
Table 59 Audio Data Format Control
REGISTER
ADDRESS
R4 (04h)
R5 (05h)
15
14
13
12
8
7
6:5
4:3
15
14
12
13
BIT
AIFADCL_SRC
AIFADCR_SRC
AIFADC_TDM
AIFADC_TDM_
CHAN
AIF_BCLK_INV
AIF_LRCLK_
INV
AIF_WL
[1:0]
AIF_FMT
[1:0]
DACL_SRC
DACR_SRC
AIFDAC_TDM
AIFDAC_TDM_
CHAN
LABEL
DEFAULT
0b
1b
0b
0b
0b
0b
10b
10b
0b
1b
0b
0b
Left ADC Data Source Select
0 = Left ADC data is output on left channel
1 = Right ADC data is output on left channel
Right ADC Data Source Select
0 = Left ADC data is output on right channel
1 = Right ADC data is output on right
channel
ADC TDM Enable
0 = Normal ADCDAT operation
1 = TDM enabled on ADCDAT
ADCDAT TDM Channel Select
0 = ADCDAT outputs data on slot 0
1 = ADCDAT output data on slot 1
BCLK Invert
0 = BCLK not inverted
1 = BCLK inverted
Right, left and I
0 = normal LRCLK polarity
1 = invert LRCLK polarity
DSP Mode – mode A/B select
0 = MSB is available on 2nd BCLK rising
edge after LRC rising edge (mode A)
1 = MSB is available on 1st BCLK rising
edge after LRC rising edge (mode B)
Digital Audio Interface Word Length
00 = 16 bits
01 = 20 bits
10 = 24 bits
11 = 32 bits
Note - see “Companding” for the selection of
8-bit mode.
Digital Audio Interface Format
00 = Right justified
01 = Left justified
10 = I
11 = DSP Mode
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
2
S Format
DESCRIPTION
2
S modes – LRCLK polarity
PD, March 2009, Rev 4.0
Production Data
112