TDA7407 STMicroelectronics, TDA7407 Datasheet - Page 34

• Manufacturer Part Number: TDA7407
• Description: IC PROCESSOR CAR SIGNAL 44TQFP
• Manufacturer: STMicroelectronics
• Type: Car Signal Processorr

Specifications of TDA7407

• Applications: Automotive Audio
• Mounting Type: Surface Mount
• Package / Case: 44-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3979

I2C Bus interface description
6
6.1
Table 10.
6.2
34/46
S
MSB
1
0 0 0 1 1 0 R/W ACK
Chip address
I
Interface protocol
The interface protocol comprises:
Addresses
D97AU627
S = Start
ACK = Acknowledge
AZ = AutoZero Remain
T = Testing
I = Auto increment
P = Stop
Max clock speed 500kbits/s
The transmitted data is automatically updated after each ACK. Transmission can be
repeated without new chip address.
Auto increment
If bit I in the subaddress byte is set to "1", the autoincrement of the subaddress is enabled.
Table 11.
SM = Soft mute activated
ST = Stereo
X = Not Used
2
C Bus interface description
MSB
–
–
–
–
–
X
a start condition (S)
a chip address byte (the LSB bit determines read / write transmission)
a subaddress byte
a sequence of data (N-bytes + acknowledge)
a stop condition (P
Transmitted data (send mode)
LSB
X
MSB
X AZ T I A3 A2 A1 A0 ACK
X
Subaddress
X
LSB
ST
MSB
SM
Data 1 to data n
DATA
X
LSB
TDA7407
ACK P
LSB
X