WM8581SEFT Wolfson Microelectronics Ltd., WM8581SEFT Datasheet - Page 29

• Manufacturer Part Number: WM8581SEFT
• Description: Multichannel Codec with S/pdif Transceiver
• Manufacturer: Wolfson Microelectronics Ltd.

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Table 15 Audio Interface Control
Notes
1.
2.
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.
In 24 bit I
a minimum of 24 BCLK cycles and low for a minimum of 24 BCLK cycles. If exactly 32 bit clocks
occur in one full left/right clock period the interface will auto detect and configure a 16 bit data
word length.
2
S mode, any data width of 24 bits or less is supported provided that LRCLK is high for
4
5
6
SAIFBCP
SAIFLRP
SAIF_EN
0
0
0
In LJ/RJ/I
In DSP Format:
SAIF BCLK polarity
SAIF Enable
0 = LRCLK not inverted
1 = LRCLK inverted
0 = DSP Mode A
1 = DSP Mode B
0 = BCLK not inverted
1 = BCLK inverted
0 = SAIF disabled
1 = SAIF enabled
2
S modes
PP Rev 1.0 March 2006
WM8581
29