PT2259
DATA BYTES DESCRIPTION
FUNCTION BITS
MSB
1
1
1
1
0
0
1
0
1
1
0
0
0
0
1
1
0
1
1
1
1
1
1
1
1
0
0
1
0
1
1
1
A3
0
A3
0
A3
0
0
0
A2
B2
A2
B2
A2
B2
0
1
A1
B1
A1
B1
A1
B1
0
C1
LSB
A0
B0
A0
B0
A0
B0
0
C0
Function
2-channel, -1dB/step
2-channel, -10db/step
Left channel, -1db/step
Left channel, -10dB/step
Right channel, -1dB/step
Right channel, -10dB/step
Clear register
Mute select
ATTENUATION UNIT BITS
A3
0
0
0
0
0
0
0
0
1
1
A2/B2
0
0
0
0
1
1
1
1
0
0
A1/B1
0
0
1
1
0
0
1
1
0
0
A0/B0
0
1
0
1
0
1
0
1
0
1
Attenuation (dB)
0/0
-1/-10
-2/-20
-3/-30
-4/-40
-5/-50
-6/-60
-7/-70
-8/
-9/
MUTE FUNCTION BITS
C1
0
0
1
1
C0
0
1
0
1
Function
Mute OFF
Right channel mute ON
Left channel mute ON
Left and right channel mute ON
V1.3
7
July, 2009
PTC [ PRINCETON TECHNOLOGY CORP ]
