alc850 Realtek Semiconductor Corporation, alc850 Datasheet - Page 17

• Manufacturer Part Number: alc850
• Description: Eight Channel Ac?97 2.3 Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

7.1.1.
Default: 0000H
Writing any value to this register will start a register reset and causes all of the registers to revert to their
default values. Reading this register returns the ID code of the specific part.
7.1.2.
Default: 8000H
These registers control the volume level of Front-Out. Each step on the left and right channels
corresponds to a 1.5dB increase/decrease in volume.
Eight Channel AC’97 2.3 Audio Codec
Note: Writing any data into this register will reset all mixer registers to their default value. The written data is ignored.
14:10
MR/ML
14:13
Bit
15
12:8
For
9
8
7
6
5
4
3
2
1
Bit
7:5
4:0
15
MX00 Reset
MX02 (Front) Master Volume
Type
R
R
R
R
R
R
R
R
R
R
R
Type
R/W
R/W
R/W
1Fh
00h
-
-
Function
Read as 0
Returns 00000b (No 3D Stereo Enhancement)
Read as 0 (Not 20-bit ADC)
Read as 0 (Not 18-bit ADC)
Read as 0 (Not 20-bit DAC)
Read as 0 (Not 18-bit DAC)
Read as 0 (No Loudness)
Read as 0 (No True Line Level output)
Read as 0 (No simulated stereo for analog 3D block use)
Read as 0 (No Bass & Treble Control)
Read as 0 (No Modem Line support)
Function
Mute Control
0: Normal
1: Mute (-∞dB)
Reserved
Master Left Volume (ML[4:0]) in 1.5dB steps
Reserved
Master Right Volume (MR[4:0]) in 1.5dB steps
0dB attenuation
46.5dB attenuation
Table 7. MX02 (Front) Master Volume
Table 6. MX00 Reset
9
Track ID: JATR-1076-21 Rev. 1.4
Datasheet
ALC850