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AS3695C датащи(PDF) 27 Page - ams AG

номер детали AS3695C
подробное описание детали  16 channel white LED controller for LCD backlight
PDF  40 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS3695C датащи(HTML) 27 Page - ams AG

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AS3695C
austriamicrosystems
www.austriamicrosystems.com
Rev 1.11 / 2010-12-08
26 - 39
5.4
SPI protocol
5.4.1 Data types
When xCS=0 all slaves will be activated. The addressing and data section is organized in byte
packages. Each message can be built with the following Bytes:
Device address:
Addresses a specific driver and defines protocol information
Bit
Meaning
Value
B
Broadcast
B=1...Broadcast message to all devices
B=0...Normal message to one single device
S
Singlebyte
S=0...Block data read or write
S=1...Single data transmission ( only one byte )
DevAddr[5:0]
Device Address
0x00 Write same data to same register of all devices ( B=1 )
0x01 to 0x3E. Device addresses for device 1 to 62
0x3F Write different data to same register of all devices ( B=1 )
Nr_of_data:
Defines the number of data bytes in the data frame if S=0
Bit
Meaning
Value
NrOfdata[7:0]
Number of data
bytes in frame
0x00 to 0xFF
Register_address:
Register address to be read or written
Bit
Meaning
Value
RW
Read/xWrite
RW=0 write to reg address
RW=1 read from reg address
RegAddr[6:0]
Select register
address
0x00 to 0x60
Data:
Data
Bit
Meaning
Value
data [7:0],
Data
0x00 to 0xFF
S
B
DevAddr[5:0]
NrOfdata[7:0]
RW
RegAddr[6:0]
data[7:0]



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