ALC202 查看數據表（PDF） - Unspecified

零件编号

产品描述 (功能)

生产厂家

ALC202

AC97 Audio CODEC

Unspecified 

Avance Logic, Inc.

ALC202

MX00

Reset

Default: 5990H

Bit

Type

Function

15

Reserved

14:10

R return 10110b

9

R Read as 0 (Not support 20-bit ADC)

8

R Read as 1 (Support 18-bit ADC)

7

R Read as 1 (Support 20-bit DAC)

6

R Read as 0 (Not support 18-bit DAC)

5

R Read as 0 (Not support for Loudness)

4

R Read as 1 (Headphone output support)

3

R Read as 0 (Not simulated stereo ,for analog 3D block use)

2

R Read as 0 (Not Bess & Treble Control)

1

R Reserved,Read as 0

0

R Read as 0 (No Dedicated Mic PCM input)

ŒWrite to this register will reset all mixer register to their default value. The written data

should be ignored.

MX02

Master Volume

Default: 8000H / 0000H

Bit

Type

Function

15

R/W Mute Control 0 : Normal 1 : Mute (-¥ dB)

14

Reserved

13:8 R/W Master Left Volume (MLV[5..0]) in 1.5 dB step

7:6

Reserved

5:0

R/W Master Right Volume (MRV[5..0]) in 1.5 dB step

ΠFor MRV/MLV, 00h 0 dB attenuation

3Fh 94.5 dB attenuation

•When ID=01,10,11, the default value is 0000H.

MX04

Headphone Output Volume

Default: 8000H / 0000H

Bit

Type

Function

15

R/W Mute Control 0 : Normal 1 : Mute (-¥ dB)

14

Reserved

13:8 R/W Headphone Output Left Volume (HPL[5..0]) in 1.5 dB step

7:6

Reserved

5:0

R/W Headphone Output Right Volume (HPR[5..0]) in 1.5 dB step

ŒFor HPR/HPL, 00h 0 dB attenuation

3Fh 94.5 dB attenuation

•When ID=01,10,11, the default value is 0000H.

MX06

MONO_OUT Volume

Default: 8000H / 0000H

Bit

Type

Function

15

R/W Mute Control 0 : Normal 1 : Mute (-¥ dB)

14:5

Reserved

4:0

R/W Mono Master Volume (MMV[4..0]) in 1.5 dB step

ΠFor MMV, 00h 0 dB attenuation

1Fh 46.5 dB attenuation

•Implement 5-bit volume control only. Writing 1xxxxx will be interpreted as x11111 and

response when read with x11111 too.

ÌWhen ID=01,10,11, the default value is 0000H.

-8-

Rev0.62

http://www.realtek.com.tw

Preliminary

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