EMP202 Datasheet, PDF (12/28 Pages) List of Unclassifed Manufacturers – Single-Chip Dual-Channel AC’97 Audio Codec for PC Audio Systems

Single-Chip Dual-Channel AC’97 Audio Codec
EMP202
EMPIA Technology
5.1.11. MX16 AUX Volume
Default: 8808H
Each step in bits 4:0 correspond to 1.5dB in increase/decrease in volume for the right channel,
allowing 32 levels of volume, from 00000 to 11111. Each step in bits 12:8 correspond to 1.5dB in
increase/decrease in volume for the left channel, allowing 32 levels of volume, from 00000 to 11111.
Bit
15
Type
R/W
14:13
-
12:8
R/W
7:5
-
4:0
R/W
1) For AL/AR: 00h
08h
1Fh
Function
Mute Control:
0: Normal
1: Mute (- ‡dB)
Reserved
AUX Left Volume: (AL[4:0]) in 1.5 dB steps
Reserved
AUX Right Volume: (AR[4:0]) in 1.5 dB steps
+12 dB Gain
0dB gain
-34.5dB Gain
Bit
15
14:13
12:8
7:5
4:0
5.1.12. MX18 PCM_OUT Volume
Default: 8808H
Each step in bits 4:0 correspond to 1.5dB in increase/decrease in volume for the right channel,
allowing 32 levels of volume, from 00000 to 11111. Each step in bits 12:8 correspond to 1.5dB in
increase/decrease in volume for the left channel, allowing 32 levels of volume, from 00000 to 11111.
Type
R/W
-
R/W
-
R/W
Function
Mute Control:
0: Normal
1: Mute (- ‡dB)
Reserved
PCM Left Volume: (PL[4:0]) in 1.5 dB steps
Reserved
PCM Right Volume: (PR[4:0]) in 1.5 dB steps
1) For PL/PR: 00h
08h
1Fh
+12 dB Gain
0dB gain
-34.5dB Gain
7/15/2002
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