MOSA
Data bytes description
Function bits
MSB
1
1
1
1
1
0
0
1
0
0
0
1
1
1
0
0
0
0
1
1
1
1
1
0
1
1
1
1
1
0
1
0
1
1
1
0
0
1
0
1
0
0
1
1
1
A3
0
A3
0
A3
0
C3
C3
C3
1
1
A2
B2
A2
B2
A2
B2
C2
C2
C2
0
1
A1
B1
A1
B1
A1
B1
C1
C1
C1
0
LSB
1
A0
B0
A0
B0
A0
B0
C0
C0
C0
M
MS6257
GAIN AND ATTENUATION VOLUME CONTROLLER IC
Function description
Function OFF (-79dB)
2-channel, -1dB/step
2-channel, -10dB/step
Left channel, -1dB/step
Left channel, -10dB/step
Right channel, -1dB/step
Right channel, -10dB/step
2-channel, +1dB/step
Left channel, +1dB/step
Right channel, +1dB/step
2-channel, MUTE
When M=1, MUTE=ON
When M=0, MUTE=OFF
Gain / Attenuation bits
A3
-
C3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A2
B2
C2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
A1
B1
C1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
A0
B0
C0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-
-
-
-
-
-
Gain / Attenuation value (dB)
B
0
-10
-20
-30
-40
-50
-60
-70
-
-
-
-
-
-
-
-
C
0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
1. Where Ax=-1dB/step, Bx=-10dB/step, Cx=+1dB/step
REV 1
8
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MOSA [ MOSA ELECTRONICS ]
