wm8595 Wolfson Microelectronics plc, wm8595 Datasheet - Page 43

• Manufacturer Part Number: wm8595
• Description: 24-bit 192khz 2vrms Multi-channel Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
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DAC1 AND DAC2 AUDIO INTERFACE CLOCK CONFIGURATION
Both DACs on the WM8595 have independent audio interfaces which can be configured to select the
required signals from any of the digital audio ports. The audio interfaces are not restricted to take
each signal from the same digital audio ports, although the BCLK and LRCLK signals are selected
together.
DAC1MCLK and DAC2MCLK are always inputs to the DAC1 and DAC2 audio interfaces and are
selected using DAC1MCLK_SEL[2:0] and DAC2MCLK_SEL[2:0] respectively.
DAC1BCLK and DAC1LRCLK are always selected together and can are inputs to the DAC1 audio
interface. DAC2BCLK and DAC2LRCLK are always selected together and are inputs to the DAC2
audio interface. DAC1BCLK and DAC1LRCLK are selected using DAC1WORDCLK_SEL[2:0], while
DAC2BCLK and DAC2LRCLK are selected using DAC2WORDCLK_SEL[2:0].
Table 35 DAC1 and DAC2 Audio Interface Clock Configuration
REGISTER
ADDRESS
AIF_MUX3
AIF_MUX4
AIF_MUX3
AIF_MUX4
AIF_MUX3
AIF_MUX4
R42
2Ah
R43
2Bh
R42
2Ah
R43
2Bh
R42
2Ah
R43
2Bh
BIT
3:1
6:4
9:7
9:7
SEL[2:0]
SEL[2:0]
SEL[2:0]
SEL[2:0]
SEL[2:0]
SEL[2:0]
LABEL
MCLK_
MCLK_
WORD
WORD
DAC1
DAC2
DAC1
DAC2
DAC1
DAC2
CLK_
CLK_
DIN_
DIN_
DEFAULT
000
001
000
001
000
001
DAC1 MCLK Select
000 = Use MCLK1
001 = Use MCLK2
010 to 111 = Reserved
DAC2 MCLK Select
000 = Use MCLK1
001 = Use MCLK2
010 to 111 = Reserved
DAC1 BCLK and DAC LRCLK Select
000 = Use BCLK1 and LRCLK1
001 = Use BCLK2 and LRCLK2
010 to 110 = Reserved
111 = Use ADCBCLK and ADCBCLK (when
ADC is master mode)
DAC2 BCLK and DAC LRCLK Select
000 = Use BCLK1 and LRCLK1
001 = Use BCLK2 and LRCLK2
010 to 110 = Reserved
111 = Use ADCBCLK and ADCBCLK (when
ADC is master mode)
DAC1 DIN Select
000 = Use DACDAT1
001 = Use DACDAT2
010 to 100 = Reserved
101 = Use GPIO1
110 = Use GPIO2
111 = Reserved
DAC2 DIN Select
000 = Use DACDAT1
001 = Use DACDAT2
010 to 100 = Reserved
101 = Use GPIO1
110 = Use GPIO2
111 = Reserved
DESCRIPTION
PD, Rev 4.1, April 2010
WM8595
43