YMU757B Datasheet, PDF (23/43 Pages) YAMAHA CORPORATION – MA-1C

YMU757B
The establishment example by the use case.
Depending on how the function is used, bit settings can be combined as shown below.
AP1 AP2 AP3 AP4
Precaution
Power reduction of
1
1
1
1 Be sure to set all volumes to "MUTE"
entire analog section
first, then set all bits to "1"
simultaneously.
Used for ear phone
0
1
1
0 Set the FM and speaker volumes to
output only
"MUTE".
Used for speaker only
0
0
0
1 Set the HP and FM volumes to
(hand-free phone)
"MUTE".
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