BD37531FV-E2 ROHM [Rohm], BD37531FV-E2 Datasheet - Page 14

• Manufacturer Part Number: BD37531FV-E2
• Description: Sound Processors with Built-in 3-band Equalizer
• Manufacturer: ROHM [Rohm]

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BD37531FV,BD37532FV,BD37533FV,BD37534FV
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（２）I
（３）I
（４）Slave address
1）Basic form
2）Automatic increment (Select Address increases (+1) according to the number of data.
3）Configuration unavailable for transmission (In this case, only Select Address1 is set.
（Example）①Data1 shall be set as data of address specified by Select Address.
S
S
S
MSB
MSB
2
2
MSB
MSB
Slave Address
C BUS FORMAT
C BUS Interface Protocol
A6
1
Slave Address
Slave Address
1bit
S
②Data2 shall be set as data of address specified by Select Address +1.
③DataN shall be set as data of address specified by Select Address +N-1.
MSB
（Note）If any data is transmitted as Select Address 2 next to data, it is
A5
0
LSB
Slave Address
LSB
S
Slave Address
A
Select Address = Select every of volume, bass and treble.
Data
P
LSB
A
8bit
MSB
recognized as data, not as Select Address 2.
A
Select Address1
A4
MSB
0
A
Select Address
LSB
MSB
Select Address
A3
1bit
= Start conditions (Recognition of start bit)
= Recognition of slave address. 7 bits in upper order are voluntary.
= ACKNOWLEDGE bit (Recognition of acknowledgement)
= Data on every volume and tone.
= Stop condition (Recognition of stop bit)
0
A
The least significant bit is “L” due to writing.
LSB
LSB
MSB
A
Select Address
MSB
A2
LSB
0
A
Data
MSB
8bit
LSB
14/37
Data1
A
MSB
A
LSB
A1
0
LSB
MSB
Data
Select Address 2
A
1bit
LSB
A
MSB
A0
0
MSB
Data2
A
LSB
LSB
P
R/W
0
Data
8bit
LSB
A
A
MSB
････
Data
LSB
80H
LSB
MSB
DataN
A
1bit 1bit
A
P
LSB
Technical Note
2010.03 - Rev.A
P
A
P