Manual

CS4205
DS489PP4 29
5.5 PC_BEEP Volume Register (Index 0Ah)
Mute PC_BEEP Mute. Setting this bit mutes the PC_BEEP input signal.
PV[3:0] PC_BEEP Volume Control. The PV[3:0] bits control the gain levels of the PC_BEEP input
source to the Input Mixer. Each step corresponds to 3 dB gain adjustment, with 0000 = 0 dB.
The total range is 0 dB to -45 dB attenuation.
Default 0000h. This value corresponds to 0 dB attenuation and Mute ‘clear’.
This register has no effect on the PC_BEEP volume during RESET#.
5.6 Phone Volume Register (Index 0Ch)
Mute Phone Mute. Setting this bit mutes the Phone input signal.
GN[5:0] Phone Volume Control. The GN[4:0] bits control the gain level of the Phone input source to
the Input Mixer. Each step corresponds to 1.5 dB gain adjustment, with 01000 = 0 dB. The
total range is +12 dB to -34.5 dB attenuation. See Table 7 on page 31 for further attenuation
levels.
Default 8008h. This value corresponds to 0 dB attenuation and Mute ‘set’.
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Mute0000000000PV3PV2PV1PV00
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Mute0000000000GN4GN3GN2GN1GN0