MSB

LSB

SUBADDRESS

A0

A1

A2

A3

B

0000

X

X

X

B

VOLUME ATTENUATION &

LOUDNESS

0100

X

X

X

B

SURROUND & OUT &

EFFECT CONTROL

0010

X

X

X

B

BASS

0110

X

X

X

B

TREBLE

0001

X

X

X

B

REC-OUT-R

0101

X

X

X

B

REC-OUT-L

0011

X

X

X

B

01110

X

X

B

01111

X

X

B

INPUT STAGE CONTROL

B = 1 yes incremental bus;

B = 0 no incremental bus;

X = indifferent 0,1

The first byte select the function, it is identified by the MSB = 0

DATA BYTES

FUNCTION SELECTION

FIRST BYTE (subaddress)

S

10000010

ACK

A2

ACK

DATA

ACK

P

MSB

LSB

MSB

LSB

MSB

LSB

CHIP ADDRESS

D94AU196

0A0 A1

A3 X

X

1

1

SUBADDRESS

DATA 1 ... DATA n

2) one subaddress, (with incremental bus) , with n data (data1 that concerns subaddress +1, data 2

that concerns subaddress + 2 etc.)

S

10000010

ACK

A2

ACK

DATA

MSB

LSB

MSB

LSB

MSB

LSB

CHIP ADDRESS

D94AU197

0A0 A1

A3 X

X

0

1

SUBADDRESS

DATA 1 ... DATA n

ACK

A2

ACK

DATA

ACK

1

MSB

LSB

MSB

LSB

0A0 A1

A3 X

X

0

1

SUBADDRESS

DATA 1 ... DATA n

3) more subaddress with more data

TDA7345

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