TDA7463AD_05 Datasheet, PDF (5/13 Pages) STMicroelectronics – LOW VOLTAGE TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR

TDA7463AD
Figure 6. Acknowledge on the I²CBUS
SCL
1
2
3
7
8
9
SDA
START
MSB
D99AU1033
ACKNOWLEDGMENT
FROM RECEIVER
4 SOFTWARE SPECIFICATION
4.1 Interface Protocol
The interface protocol comprises:
■ A start condition (S)
■ A chip address byte, containing the TDA7463AD address
■ A subaddress bytes
■ A sequence of data (N byte + acknowledge)
■ A stop condition (P)
Figure 7.
CHIP ADDRESS
SUBADDRESS
DATA 1 to DATA n
MSB
LSB
MSB
S 1 0 0 0 1 0 0 0 ACK X X X B
D96AU420
LSB
MSB
DATA
ACK
DATA
LSB
ACK P
ACK = Acknowledge
S = Start
P = Stop
A = Address
B = Auto Increment
5 DATA BYTES
Address = (HEX) 10001000
5.1 FUNCTION SELECTION:
The first byte (subaddress)
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
D0
SUBADDRESS
X
X
B
0
0
0
0 STAND-BY & TREBLE & OTHERS
X
X
B
0
0
0
1 BASS
X
X
B
0
0
1
0 VOLUME
B = 1 incremental bus; active
B = 0 no incremental bus;
X = indifferent 0,1
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