TDA7345 Datasheet, PDF (9/18 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SURROUND SOUND MATRIX

TDA7345
2) one subaddress, (with incremental bus) , with n data (data1 that concerns subaddress +1, data 2
that concerns subaddress + 2 etc.)
CHIP ADDRESS
SUBADDRESS
DATA 1 ... DATA n
MSB
LSB
MSB
LSB
MSB
S 1 0 0 0 0 0 1 0 ACK 0 A0 A1 A2 A3 X X 1 ACK 1
D94AU196
DATA
LSB
ACK P
3) more subaddress with more data
CHIP ADDRESS
SUBADDRESS
DATA 1 ... DATA n
SUBADDRESS
DATA 1 ... DATA n
MSB
LSB
MSB
LSB
MSB
S 1 0 0 0 0 0 1 0 ACK 0 A0 A1 A2 A3 X X 0 ACK 1
D94AU197
DATA
LSB
MSB
LSB
MSB
ACK 0 A0 A1 A2 A3 X X 0 ACK 1
DATA
LSB
ACK 1
DATA BYTES
FUNCTION SELECTION
FIRST BYTE (subaddress)
The first byte select the function, it is identified by the MSB = 0
MSB
A0
A1
A2
A3
0
0
0
0
X
X
X
0
1
0
0
X
X
X
0
0
1
0
X
X
X
0
1
1
0
X
X
X
0
0
0
1
X
X
X
0
1
0
1
X
X
X
0
0
1
1
X
X
X
0
1
1
1
0
X
X
0
1
1
1
1
X
X
B = 1 yes incremental bus;
B = 0 no incremental bus;
X = indifferent 0,1
LSB
B
B
B
B
B
B
B
B
B
B
SUBADDRESS
VOLUME ATTENUATION &
LOUDNESS
SURROUND & OUT &
EFFECT CONTROL
BASS
TREBLE
REC-OUT-R
REC-OUT-L
ROUT
LOUT
INPUT STAGE CONTROL
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