E-TDA7342N STMicroelectronics, E-TDA7342N Datasheet - Page 12

• Manufacturer Part Number: E-TDA7342N
• Description: IC AUDIO PROCESSOR 32-LQFP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of E-TDA7342N

• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Lead Free Status / Rohs Status: Compliant

Software specification
4
4.1
4.2
12/20
Software specification
Interface protocol
The interface protocol comprises:
●
●
●
●
●
Figure 6.
ACK = Acknowledge
S = Start
P = Stop
I = Auto Increment
X = Not used
Max clock speed 500kbits/s
Auto increment
If bit I in the subaddress byte is set to "1", the auto increment of the subaddress is enabled
Table 5.
S
MSB
MSB
X
1
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)
0
D05AU1575
0
CHIP ADDRESS
X
0
Interface protocol
Subaddress (receive mode)
1
0
X
0
LSB
R/W
I
ACK
MSB
X
A3
0
0
0
0
0
0
0
0
1
X
SUBADDRESS
X
A2
I
0
0
0
0
1
1
1
1
0
A
3
A
2
A
A1
0
0
1
1
0
0
1
1
0
1
LSB
A
0
ACK
LSB
A0
0
1
0
1
0
1
0
1
0
MSB
Input selector
Loudness
Volume
Bass, treble
Speaker attenuator LF
Speaker attenuator LR
Speaker attenuator RF
Speaker attenuator RR
Mute
DATA 1 ... DATA n
DATA
Function
LSB
TDA7342
ACK
P