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WM8766 датащи(PDF) 27 Page - Wolfson Microelectronics plc |
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WM8766 датащи(HTML) 27 Page - Wolfson Microelectronics plc |
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27 / 36 page ![]() Production Data WM8766 w PD Rev 4.1 July 2005 27 DACPD [2:0] DAC CHANNEL 1 DAC CHANNEL 2 DAC CHANNEL 3 000 Active Active Active 001 DISABLE Active Active 010 Active DISABLE Active 011 DISABLE DISABLE Active 100 Active Active DISABLE 101 DISABLE Active DISABLE 110 Active DISABLE DISABLE 111 DISABLE DISABLE DISABLE Table 15 DAC Disable Control MASTER POWERDOWN This control bit powers down the references for the whole chip. Therefore for complete powerdown, all DACs should be powered down first before setting this bit. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 0001010 Interface Control 4 PWRDNALL 0 Master Power Down Bit: 0: Not powered down 1: Powered down MASTER MODE SELECT Control bit MS selects between audio interface Master and Slave Modes. In Master mode LRCLK and BCLK are outputs and are generated by the WM8766. In Slave mode LRCLK and BCLK are inputs to WM8766. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 0001010 Interface Control 5 MS 0 DAC Audio Interface Master/Slave Mode Select: 0: Slave mode 1: Master mode MASTER MODE LRCLK FREQUENCY SELECT In Master mode the WM8766 generates LRCLK and BCLK. These clocks are derived from the master clock and the ratio of MCLK to LRCLK is set by RATE. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 0001010 Interface Control 8:6 RATE [2:0] 010 Master Mode MCLK:LRCLK Ratio Select: 000: 128fs 001: 192fs 010: 256fs 011: 384fs 100: 512fs 101: 768fs |
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