参数资料
型号: TDA7407
厂商: STMICROELECTRONICS
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封装: 10 X 10 MM, 1.40 MM HEIGHT, LQFP-44
文件页数: 28/46页
文件大小: 692K
代理商: TDA7407
Obsolete
Product(s)
- Obsolete
Product(s)
I2C Bus interface description
TDA7407
6
I2C Bus interface description
6.1
Interface protocol
The interface protocol comprises:
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
Table 10.
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.
6.2
Auto increment
If bit I in the subaddress byte is set to "1", the autoincrement of the subaddress is enabled.
Table 11.
Transmitted data (send mode)
SM = Soft mute activated
ST = Stereo
X = Not Used
Chip address
Subaddress
Data 1 to data n
MSB
LSB
MSB
LSB
MSB
LSB
S
1
000110 R/W ACK
X
AZ T
I A3 A2 A1 A0 ACK
DATA
ACK P
MSB
LSB
XX
ST
SM
X
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