YMF715E Datasheet, PDF (28/54 Pages) YAMAHA CORPORATION – OPL3 Single-chip Audio System 3

YMF715Eɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ
ɹ9-1-2-2. Sound Blaster Pro compatibility Mixer
The table below is the register map of mixer of Sound Blaster Pro compatibility.
Index
00h
04h
0Ah
0Ch
0Eh
22h
26h
28h
2Eh
D7
D6
D5
D4
D3
D2
D1
D0
Reset Mixer
Voice Vol. Lch
-
Voice Vol. Rch
-
-
-
-
-
MIC Vol.
-
Input
Low Pass
-
-
Filter
-
Filter
Input Source
-
Output
Stereo
-
-
Filter
-
-
-
SW
-
Master Vol. Lch
-
Master Vol. R
-
MIDI Vol. Lch
-
MIDI Vol. Rch
-
CD Vol. Lch
-
CD Vol. Rch
-
Line Vol. Lch
-
Line Vol. Rch
-
The bit remarked
indicates that these can be read and written but not effective.
The actual value written to the Master Vol., MIDI Vol., CD Vol. and Line Vol. is based on the table
shown below. And when read, actual value cannot be read and written value to each register is read
instead.
Voice Vol. (04h), CD Vol. (28h), Line Vol. (2Eh)
0
1
2
3
4
5
6
7
0 mute
mute
mute
mute
mute
mute
mute
mute
1 mute -28.5dB -22.5dB -16.5dB -10.5dB -7.5dB -3.0dB
0dB
2 mute -22.5dB -16.5dB -10.5dB -7.5dB -3.0dB
0dB
0dB
3 mute -16.5dB -10.5dB -7.5dB -3.0dB
0dB
0dB
0dB
4 mute -10.5dB -7.5dB -3.0dB
0dB
0dB
0dB
0dB
5 mute
-7.5dB -3.0dB
0dB
0dB
0dB
0dB
0dB
6 mute
-3.0dB
0dB
0dB
0dB
0dB
0dB
0dB
7 mute
0dB
0dB
0dB
0dB
0dB
0dB
0dB
May 21, 1997
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