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CS4237B Datasheet(PDF) 53 Page - Cirrus Logic |
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CS4237B Datasheet(HTML) 53 Page - Cirrus Logic |
53 / 114 page master digital audio volume. This bit can be set through the Hardware Configuration data in the EEPROM. LIS1-LIS0 Left Input Mixer Summer Attenuator. This attenuates the inputs to the left input mixer to enable overload pro- tection when multiple input sources are utilized. The least significant bit represents 6 dB of attenuation, where 00 yields 0 dB of attenuation. See Table 8. MIMR Mono Input Mute to the Right Output mixer. When set to 1, the MIN signal to the right output mixer is muted. Right Input Mixer Control (X5) Default = 000xxxxx D7 D6 D5 D4 D3 D2 D1 D0 MOMR RIS1 RIS0 res res res res res res Reserved. Must write 0. Could be read as 0 or 1. RIS1-RIS0 Right Input Mixer Summer Attenuator. This attenuates the inputs to the right input mixer to enable overload protection when multiple input sources are utilized. The least signifi- cant bit represents 6 dB of attenuation, where 00 yields 0 dB of attenuation. See Table 8. MOMR Mono Output Mute from the Right Line Out, ROUT, to the mono output mixer. When set to 1, the signal to the mono output mixer from the Right Line Out is muted. Left FM Synthesis Volume (X6) Default = 1x000000 D7 D6 D5 D4 D3 D2 D1 D0 LFMM res LFMA5 LFMA4 LFMA3 LFMA2 LFMA1 LFMA0 NOTE: This FM volume register can also be control- led through I18 when IFM = 1 and FMRM = 1. LFMA5-LFMA0 Left Internal FM Synthesis Volume. The least significant bit represents 1.5 dB, with 000000 = 0 dB. See Table 6. res Reserved. Must write 0. Could read as 0 or 1. LFMM Left FM mute. When set to 1, the left internal FM input to the digital mixer is muted. Right FM Synthesis Volume (X7) Default = 1x000000 D7 D6 D5 D4 D3 D2 D1 D0 RFMM res RFMA5 RFMA4 RFMA3 RFMA2 RFMA1 RFMA0 NOTE: This FM volume register can also be control- led through I19 when IFM = 1 and FMRM = 1. RFMA5-RFMA0 Right Internal FM Synthesis Volume. The least significant bit represents 1.5 dB, with 000000 = 0 dB. See Table 6. res Reserved. Must write 0. Could read as 0 or 1. RFMM Right FM mute. When set to 1, the right internal FM input to the digital mixer is muted. Left DSP Serial Port Volume (X8) Default = 0x000000 D7 D6 D5 D4 D3 D2 D1 D0 LSPM res LSPA5 LSPA4 LSPA3 LSPA2 LSPA1 LSPA0 LSPA4-LSPA0 Left DSP Serial Port Attenuation. The least significant bit represents 1.5 dB, with 000000 = 0 dB. See Table 6. res Reserved. Must write 0. Could read as 0 or 1. LFMA5-A0 LFMM To Digital Mixer Summer 0 to -94.5 dB Internal FM Synthesizer RFMA5-A0 RFMM To Digital Mixer Summer 0 to -94.5 dB Internal FM Synthesizer DS213PP4 CS4237B 53 |
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