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WM8580AGEFTV Datasheet(PDF) 94 Page - Wolfson Microelectronics plc |
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WM8580AGEFTV Datasheet(HTML) 94 Page - Wolfson Microelectronics plc |
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94 / 106 page  WM8580A Production Data w PD, Rev 4.9, November 2013 94 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 5:4 Reserved - Reserved for additional de-emphasis modes. 7:6 CHSTMODE [1:0] - 00 = Only valid mode for consumer applications. R45 SPDRXCHAN 2 2Dh 7:0 CATCODE [7:0] - Category Code. Refer to S/PDIF specification for details. 00h indicates “general” mode. R46 SPDRXCHAN 3 2Eh 3:0 SRCNUM [3:0] - Indicates S/PDIF source number. 5:4 CHNUM1[1:0] - Channel number for sub-frame 1. 00 = Take no account of channel number (channel 1 defaults to left DAC) 01 = channel 1 to left channel 10 = channel 1 to right channel 7:6 CHNUM2[1:0] Channel number for sub-frame 2. 00 = Take no account of channel number (channel 2 defaults to left DAC) 01 = channel 2 to left channel 10 = channel 2 to right channel R47 SPDRXCHAN 4 2Fh 3:0 FREQ[3:0] - Sampling Frequency Indicated Refer to S/PDIF specification IEC60958-3 for details. 0001 = Sampling Frequency not indicated. 5:4 CLKACU[1:0] - Clock Accuracy of received clock. 00 = Level II 01 = Level I 10 = Level III 11 = Interface frame rate not matched to sampling frequency. R48 SPDRXCHAN 5 30h 0 MAXWL - Maximum Audio sample word length 0 = 20 bits 1 = 24 bits 3:1 RXWL[2:0] - Audio Sample Word Length. 000: Word Length Not Indicated RXWL[2:0] MAXWL==1 MAXWL== 0 001 20 bits 16 bits 010 22 bits 18 bits 100 23 bits 19 bits 101 24 bits 20 bits 110 21 bits 17 bits All other combinations are reserved and may give erroneous operation. Data will be truncated internally when these bits are set unless WL_MASK is set. 7:4 ORGSAMP [3:0] - Original Sampling Frequency. See S/PDIF specification for details. 0000 = original sampling frequency not indicated R49 SPDSTAT 31h 0 AUDIO_N - Linear PCM Identification 0 = Data word represents audio PCM samples. 1 = Data word does not represent audio PCM samples. 1 PCM_N - Indicates that non-audio code (defined in IEC-61937) has been detected. 0 = Sync code not detected. 1 = Sync code detected – received data is not audio PCM. |
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