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YMF715E
May 21, 1997
-36-
Master Volume Lch (R/W):
Index D7 D6 D5 D4 D3 D2 D1 D0
07h MVLM - - - MVL3 MVL2 MVL1 MVL0
This register specifies the master volume of left channel.
MVLM... Setting to “1” to this bit makes Master Volume Left Channel muted.
MVL3-0... These bits determine the attenuation level of Master Volume Left
Channel by -2dB step. When all bits are set to “0”, volume is maximum
(0dB) and when all bits are set to “1”, volume is minimum (-30dB).
default : 07h (-14dB)
Notice)
During the power on reset and power down/save mode, master volume is automatically
muted, so all audio sources can not be heard. In resuming from power down/save mode, it is
still muted.
Master Volume Rch (R/W):
Index D7 D6 D5 D4 D3 D2 D1 D0
08h MVRM - - - MVR3 MVR2 MVR1 MVR0
This register specifies the master volume of right channel.
MVRM... Setting to “1” to this bit makes Master Volume Right Channel muted.
MVR3-0... These bits determine the attenuation level of Master Volume Right
Channel by -2dB step. When all bits are set to “0”, volume is maximum
(0dB) and when all bits are set to “1”, volume is minimum (-30dB).
default : 07h (-14dB)
Notice)
During the power on reset and power down/save mode, master volume is automatically
muted, so all audio sources can not be heard. In resuming from power down/save mode, it is
still muted.
MIC Volume (R/W):
Index D7 D6 D5 D4 D3 D2 D1 D0
09h MICM - - MCV4 MCV3 MCV2 MCV1 MCV0
This register specifies the master volume of MIC.
MICM... Setting to “1” to this bit makes Mic Volume muted.
MCV4-0... These bits determine the gain level of Mic volume by -1.5dB step. When
all bits are set to “0”, volume is maximum(+12dB) and when all bits are
set to “1”, volume is minimum (-34.5dB).
default : 88h