參數(shù)資料
型號: TDA7461NDTR
廠商: STMICROELECTRONICS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝: SOP-28
文件頁數(shù): 27/48頁
文件大?。?/td> 437K
代理商: TDA7461NDTR
TDA7461
I2C bus interface description
5
I2C bus interface description
5.1
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)
Figure 29.
Interface protocol diagram
S = Start
ACK = Acknowledge
AZ = AutoZero-Remain
T = Testing
I = Auto increment
P = Stop
Max. clock speed: 500 kbits/s
The transmitted data is automatically updated after each ACK.
Transmission can be repeated without new chip address.
5.2
Auto increment
If bit I in the subaddress byte is set to "1", the auto increment of the subaddress is enabled.
SM = Soft mute activated
ST = Stereo
X = Not used
D97AU627
S
1
0
1
0 R/W ACK
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
X
I
SUBADDRESS
DATA 1 to DATA n
AZ T
A3 A2 A1 A0
DATA
Table 11.
Transmitted data (send mode)
MSB
LSB
XX
ST
SM
XX
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