wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 117

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

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Pre-Production
DACLRC2
DACDAT2
ADCLRC
ADCDAT
DACLRC
DACDAT
BCLK2
BCLK
Figure 64 Audio Interface Input Flow
The Audio Interface input flow illustrated above is controlled by only two signals. These are
ALRCGPIO1 and AIF_SEL.
Table 69 Audio Interface Pin Function Select
R9 (09h)
R10 (0Ah)
REGISTER
ADDRESS
13
15
BIT
AIF_SEL
ALRCGPIO1
LABEL
ALRCGPIO1
AIF_SEL
0
1
0
1
0
1
0
1
0b
0b
DEFAULT
Audio Interface Select
0 = Audio interface 1
1 = Audio interface 2 (GPIO3/BCLK2,
GPIO4/DACLRC2, GPIO5/DACDAT2)
ADCLRC/GPIO1 Pin Function Select
0 = ADCLRC pin
1 = GPIO1 pin (ADCLRC connected to
DACLRC internally)
ADC_BCLK
ADC_LRCLK
ADC_DATA
DAC_BCLK
DAC_LRCLK
DAC_DATA
DESCRIPTION
Interface
Audio
PP, April 2009, Rev 3.0
WM8400
117