TDA7429L STMicroelectronics, TDA7429L Datasheet - Page 7

• Manufacturer Part Number: TDA7429L
• Description: IC PROCESSOR AUDIO 3BAND 42-SDIP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7429L

• Applications: TV, HI-FI Systems
• Mounting Type: Through Hole
• Package / Case: 42-SDIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4
4.1 Interface Protocol
The interface protocol comprises:
Figure 8.
5
5.1 No Incremental Bus
The TDA7429L receives a start condition, the correct chip address, a subaddress with the MSB = 0 (no incre-
mental bus), N-datas (all these datas concern the subaddress selected), a stop condition.
Figure 9.
5.2 Incremental Bus
The TDA7429L receives a start condition, the correct chip address, a subaddress with the MSB = 1 (incremental
bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS from
"1XXX1010" to "1XXX1111" of DATA are ignored.The DATA 1 concern thesubaddress sent, and the DATA 2
concern the subaddress sent plus one in the loop etc, and at the end it receivers the stop condition.
Figure 10.
S
S
S
A start condition (S)
A chip address byte, containing the TDA7429L address
A subaddress bytes
A sequence of data (N byte + achnowledge)
A stop condition (P)
MSB
MSB
MSB
SOFTWARE SPECIFICATION
EXAMPLES
1
1
1
0
0
0
D95AU226A
CHIP ADDRESS
CHIP ADDRESS
CHIP ADDRESS
D95AU306
D95AU307
0
0
0
0
0
0
0
0
0
0
0
0
A
A
A
LSB
LSB
LSB
0
0
0
ACK
ACK
ACK
MSB
MSB
MSB
B
0
1
X
X
SUBADDRESS
SUBADDRESS
SUBADDRESS
X
X
DATA
X
X
D3
D3
D2 D1 D0
D2 D1 D0
LSB
LSB
LSB
ACK
ACK
ACK
MSB
MSB
MSB
DATA 1 to DATA n
DATA 1 to DATA n
DATA
DATA
DATA
DATA
LSB
LSB
LSB
TDA7429L
ACK
ACK
ACK
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P
P
P