BH3856 데이터 시트보기 (PDF) - ROHM Semiconductor
부품명
상세내역
일치하는 목록
BH3856 Datasheet PDF : 16 Pages
| |||
Audio ICs
BH3856S / BH3856FS
(2) I2C BUS data format
MSB
LSB
MSB
LSB
MSB LSB
S Slave address A Select address A Data A P
1bit
8bit
1bit
8bit
1bit 8bit 1bit 1bit
•S
= start condition (start bit recognition)
• Slave address = IC recognition. Upper 7 bits are random. Bottom bit is “L” for the sake of overwrite.
•A
= acknowledge bit (recognition of acknowledgment)
• Select address = selection between volume, bass, treble and matrix surround.
• Data
= volume and tone data
•P
= stop condition (stop bit recognition)
(3) BH3856S / BH3856FS slave address
MSB
A6 A5 A4 A3 A2 A1
1
0
0
0
0
0
LSB
A0 R/W
A
0
• Slave address selection
1) A = 1 (10000010) [SASS pin HIGH]
2) A = 0 (10000000) [SASS pin LOW]
(4) Interface protocol
1) Basic protocol
S Slave address A Select address A Data A P
MSB
LSB
MSB
LSB
MSB LSB
2) Auto increment (Select address increases (+1) by the value of the data.)
S Slave address A Select address A
MSB
LSB
MSB
LSB
MSB
Data 1, data 2,...data N
AP
LSB
(Example 1) The address data specified by select address is taken as data 1.
(Example 2) The address data specified by select address +1 is taken as data 2.
(Example 3) The address data specified by select address +N−1 is taken as data N.
3) Structure with which transmission is not possible (In this case, only select address 1 is set.)
S Slave address
A Select address 1 A Data A Select address 2 A Data A P
MSB
LSB
MSB
LSB
MSB LSB
MSB
LSB
MSB LSB
Note : Following transmission of data, data transmitted as select address
2 will not be recognized as select address 2, but as data.
Share Link: 