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CS4237B Datasheet(PDF) 37 Page - Cirrus Logic |
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CS4237B Datasheet(HTML) 37 Page - Cirrus Logic |
37 / 114 page Left Auxiliary #2 Volume (I4) Default = 11x01000 D7 D6 D5 D4 D3 D2 D1 D0 LX2OM LX2IM res LX2G4 LX2G3 LX2G2 LX2G1 LX2G0 LX2G4-LX2G0 Left Auxiliary #2, LAUX2, Mix Gain. The least significant bit represents 1.5 dB, with 01000 = 0 dB. See Table 10. res Reserved. Must write 0. LX2IM Left Auxiliary #2 Mute. In MODE 3, when set to 1, the left Auxiliary #2 in- put, LAUX2, to the input mixer through the gain stage, is muted. In MODEs 1 & 2, this bit is not avail- able and internally forced on (muted). LX2OM Left Auxiliary #2 Mute. When set to 1, the left Auxiliary #2 input, LAUX2, to the output mixer through the gain stage, is muted. Right Auxiliary #2 Volume (I5) Default = 11x01000 D7 D6 D5 D4 D3 D2 D1 D0 RX2OM RX2IM res RX2G4 RX2G3 RX2G2 RX2G1 RX2G0 RX2G4-RX2G0 Right Auxiliary #2, RAUX2, Mix Gain. The least significant bit represents 1.5 dB, with 01000 = 0 dB. See Table 10. res Reserved. Must write 0. Could read as 0 or 1. RX2IM Right Auxiliary #2 Mute. In MODE 3, when set, the right Auxiliary #2 in- put, RAUX2, to the input mixer through the gain stage, is muted. In MODEs 1 & 2, this bit is not avail- able and internally forced on (muted). RX2OM Right Auxiliary #2 Mute. When set to 1, the right Auxiliary #2 input, RAUX2, to the output mixer through the gain stage, is muted. Left DAC (PC Wave) Volume (I6) Default = 10000000 D7 D6 D5 D4 D3 D2 D1 D0 LDOM LDG6 LDG5 LDG4 LDG3 LDG2 LDG1 LDG0 LPM res LPA5 LPA4 LPA3 LPA2 LPA1 LPA0 If both IFM (X4 or Global Config. byte) and WTEN (C8 or Global Config. byte) are cleared, this register is the master digital audio volume for the left channel with the following bit definitions: LDG6-LDG0 Left DAC Master Volume. The least significant bit represents 1.5 dB, with 0000000 = 0 dB. The total range is +12 to -94.5 dB. See Table 12. LDOM Left DAC Master Mute. When set, the left DAC to the output mixer is muted. If IFM or WTEN is set, this register controls the left channel volume for data coming from the ISA bus only (and X14 is the left channel digital audio master volume) with the following bit descriptions. LPA5-LPA0 Left PC Wave Attenuation. The least significant bit represents -1.5 dB, with 000000 = 0 dB. The total range is 0 to -94.5 dB. See Table 6. res Reserved. Must write 0. Could read as 0 or 1. LPM Left PC Wave Mute. When set, the left PCM input to the digital mixer summer will be muted. LX2G4-G0 LAUX2 (Line In) LX2IM LX2OM To Output Mixer To Input Mixer +12 to -34.5 dB RX2G4-G0 RAUX2 (Line In) RX2IM RX2OM To Output Mixer To Input Mixer +12 to -34.5 dB DS213PP4 CS4237B 37 |
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