WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 91

• 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
The dual Audio Interface approach of the WM8959 has been implemented in such a way that it gives
the user and application as much flexibility as possible, without any restrictions built into the
WM8959.
This means that the application has to be carefully analysed and the WM8959 configured
accordingly. In the following Figure 58 and Figure 59, the Audio Interface input flow and the output
controls are illustrated.
Figure 58 Audio Interface Input Flow
The Audio Interface input flow illustrated above is controlled only by the AIF_SEL register bit.
Table 49 Audio Interface Pin Function Select
R8 (08h)
REGISTER
ADDRESS
13
BIT
AIF_SEL
LABEL
0b
DEFAULT
Audio Interface Select
0 = Audio interface 1
1 = Audio interface 2 (GPIO3/BCLK2,
GPIO4/DACLRC2, GPIO5/DACDAT2)
DESCRIPTION
PP, May 2008, Rev 3.1
WM8959
91