CS4294SLASHCS4298 datasheet(29/81 Pages) CIRRUS

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CS4205

DS489PP4

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

Mute

0000000000

PV3

PV2

PV1

PV0

D15

D14

D13

D12

D11

D10

Mute

0000000000

GN4

GN3

GN2

GN1

GN0

CS4294/CS4298 数据表(PDF) 29 Page - Cirrus Logic

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CS4294/CS4298 数据表(PDF) 29 Page - Cirrus Logic

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