wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 124

• Manufacturer Part Number: wm8903
• Description: Ultra Low Power Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8903
R25 (19h)
Audio
Interface 1
Register 19h Audio Interface 1
w
REGISTER
ADDRESS
BIT
3:2
1:0
13
12
11
10
9
7
6
4
AIFDAC_TDM_CHAN
AIFADC_TDM_CHAN
AIF_LRCLK_INV
AIF_BCLK_INV
AIFDAC_TDM
AIFADC_TDM
AIF_FMT[1:0]
AIF_WL[1:0]
LRCLK_DIR
BCLK_DIR
LABEL
DEFAULT
00
10
0
0
0
0
0
0
0
0
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
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
Audio Interface LRC Direction
0 = LRC is input
1 = LRC is output
BCLK Invert
0 = BCLK not inverted
1 = BCLK inverted
Audio Interface BCLK Direction
0 = BCLK is input
1 = BCLK is output
LRC Polarity / DSP Mode A-B select.
Right, left and I2S modes – LRC polarity
0 = Not Inverted
1 = Inverted
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
Digital Audio Interface Format
00 = Right Justified
01 = Left Justified
10 = I2S
11 = DSP
DESCRIPTION
PP, Rev 3.1, August 2009
Pre-Production
124