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WM8580 Datasheet(PDF) 29 Page - Wolfson Microelectronics plc

Part # WM8580
Description  Multichannel CODEC with S/PDIF Transceiver
PDF  103 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8580 Datasheet(HTML) 29 Page - Wolfson Microelectronics plc

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Production Data
WM8580
w
PD Rev 4.5 February 2008
29
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
1:0
PAIFTXFMT
[1:0]
10
PAIF Transmitter Audio Data Format
Select
11: DSP Format
10: I2S Format
01: Left justified
00: Right justified
3:2
PAIFTXWL
[1:0]
10
PAIF Transmitter Audio Data Word
Length
11: 32 bits (see Note 1,2)
10: 24 bits
01: 20 bits
00: 16 bits
4
PAIFTXLRP
0
In LJ/RJ/I2S modes
0 = LRCLK not inverted
1 = LRCLK inverted
In DSP Format:
0 = DSP Mode A
1 = DSP Mode B
R13
PAIF 4
0Dh
5
PAIFTXBCP
0
PAIF Receiver BCLK polarity
0 = BCLK not inverted
1 = BCLK inverted
1:0
SAIFFMT
[1:0]
10
SAIF Audio Data Format Select
11: DSP Format
10: I2S Format
01: Left justified
00: Right justified
3:2
SAIFWL
[1:0]
10
SAIF Audio Data Word Length
11: 32 bits (see Note 1,2)
10: 24 bits
01: 20 bits
00: 16 bits
4
SAIFLRP
0
In LJ/RJ/I
2S modes
0 = LRCLK not inverted
1 = LRCLK inverted
In DSP Format:
0 = DSP Mode A
1 = DSP Mode B
5
SAIFBCP
0
SAIF BCLK polarity
0 = BCLK not inverted
1 = BCLK inverted
R14
SAIF 2
0Eh
6
SAIF_EN
0
SAIF Enable
0 = SAIF disabled
1 = SAIF enabled
Table 16 Audio Interface Control
Notes
1.
Right Justified mode does not support 32-bit data. If word length xAIFxxWL=11b in Right
Justified mode, the word length is forced to 24 bits.
In all modes, the data is signed 2’s complement. The digital filters internal signal paths process
24-bit data. If the device is programmed to receive 16 or 20 bit data, the device pads the unused
LSBs with zeros. If the device is programmed into 32 bit mode, the 8 LSBs are ignored.



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