CS4294 Datasheet, PDF (24/42 Pages) Cirrus Logic – SoundFusion Audio/Docking Codec 97 (AMC 97)

CS4294
6.1.15 PCM LFE DAC Rate (Index 30h)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SR15 SR14 SR13 SR12 SR11 SR10 SR9 SR8 SR7 SR6 SR5 SR4 SR3 SR2 SR1 SR0
SR[15:0] LFE DAC Sample Rate.
Default Read-only value BB80h, indicating 48 kHz sample rate.
6.1.16 PCM LR ADC Rate (Index 32h)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SR15 SR14 SR13 SR12 SR11 SR10 SR9 SR8 SR7 SR6 SR5 SR4 SR3 SR2 SR1 SR0
SR[15:0] LR ADC Sample Rate.
Default Read-only value BB80h, indicating 48 kHz sample rate.
6.1.17 Center LFE Volume (Index 36h)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Mute
LFE5 LFE4 LFE3 LFE2 LFE1 LFE0 Mute
CNT5 CNT4 CNT3 CNT2 CNT1 CNT0
LFE[5:0]
CNT[5:0]
Default
LFE Volume. Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0 dB to -
94.5 dB.
Center Volume.Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0 dB to -
94.5 dB.
8080h, indicating mute with 0 dB attenuation.
LFE[5:0]/LSR[5:0]
CNT[5:0]/RSR[5:0]
Write
000000
000001
…
111111
LFE[5:0]/LSR[5:0]
CNT[5:0]/RSR[5:0]
Read
000000
000001
…
111111
Table 6. 6 Channel Volume Attenuation
Gain Level
0 dB
-1.5 dB
...
-94.5 dB
6.1.18 LR Surround Volume (Index 38h)
D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Mute
LSR5 LSR4 LSR3 LSR2 LSR1 LSR0 Mute
RSR5 RSR4 RSR3 RSR2 RSR1 RSR0
LSR[5:0]
RSR[5:0]
Default
Left Surround Volume. Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0
dB to -94.5 dB.
Right Surround Volume. Least significant bit represents -1.5 dB with 00000 = 0 dB. The total range is 0
dB to -94.5 dB.
8080h, indicating 0 dB attenuation.
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DS326PP4