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AS3820 数据表(PDF) 39 Page - Dialog Semiconductor

部件名 AS3820
功能描述  16-Channel White LED Controller for LCD Backlight
PDF  52 Pages
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制造商  DIALOG [Dialog Semiconductor]
网页  http://www.dialog-semiconductor.com/
标志 DIALOG - Dialog Semiconductor

AS3820 数据表(HTML) 39 Page - Dialog Semiconductor

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AS3820
16-Channel White LED Controller for LCD Backlight
Rev. 1.1
Datasheet
© 2019 Dialog Semiconductor
www.dialog-semiconductor.com
39 of 52
05-Feb-2019
Data[7:0]
Bit
Meaning
Value
Data[7:0]
Data
0x00 to 0xFF
Table 4: Data
Timing
Figure 8.19 : Write Single Data into Single Device
Figure 8.20 : Read Single Data from Single
DA… Device Address
RA… Register Address
D… Data
8.8.5 SPI Protocol Examples
The following drawings show various SPI protocol examples.
Write Single Data
Figure 8.21 : Write to Reg0x02 of Dev0x01
xCS
SCLK
SDI
SDO
Hi-Z
Start devices address enumeration
Hi-Z
Store data into registers
DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
D7
D6
D5
D4
D3
D2
D1
D0
DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
xCS
SCLK
SDI
SDO
Hi-Z
Start devices address enumeration
Hi-Z
DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
DA7 DA6 DA5 DA4 DA3 DA2 DA1 DA0 RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
D7
D6
D5
D4
D3
D2
D1
D0
Reg
0x07
0x06
0x05
0x04
0x03
0x02
0x00
0x01
Device 0x01
Reg
0x07
0x06
0x05
0x04
0x03
0x02
0x00
0x01
Device 0x02
Reg
0x07
0x06
0x05
0x04
0x03
0x02
0x00
0x01
Device 0x03
0x03
MOSI
0x01
0 1
0 0x02
0x03
DevAddr
RegAddr
Data
MISO
0x00
0x00
0x00



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