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AS3820 bảng dữ liệu(PDF) 29 Page - Dialog Semiconductor

tên linh kiện AS3820
Giải thích chi tiết về linh kiện  16-Channel White LED Controller for LCD Backlight
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AS3820 bảng dữ liệu(HTML) 29 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
29 of 52
05-Feb-2019
RegAddr: 0x35
RegAddr: 0x34
PWM16delay
Bit
Bit
Default
Access
Bit Description
3:0
7:0
0x00, 0x00
RW
PWM16per[11:0] sets PWM16 delay
Table 41: PWM16delay
RegAddr: 0x36
LOCKUNLOCK
Bit
Bit Name
Default
Access
Bit Description
7:0
LOCKUNLOCK
0x00
RW
MagicByte to lock and unlock writing and
reading of registers
Writing into register:
0xCX...Unlock register Group1. Writing enabled
0xXA...Unlock register Group2. Writing enabled
0xCA...Unlock register Group1 and Group2.
Writing enabled
0xAX...Lock register Group1. Writing disabled
0xXC...Lock register Group2. Writing disabled
0xAC...Lock register Group1 and Group2.
Writing disabled
X...Don’t care.
All other values do not change the status
of LOCKUNLOCK.
Reading from register:
0x00....Group1 and Group2 are locked
0x01...Group1 is unlocked
0x02...Group2 is unlocked
0x03...Group1 and Group2 are unlocked
Table 42: LOCKUNLOCK
RegAddr: 0x38
RegAddr: 0x37
PWM1hightime
Bit
Bit
Default
Access
Bit Description
3:0
7:0
0x00, 0x00
RW
PWM1HT[11:0] sets PWM1 high time
Table 43: PWM1hightime
RegAddr: 0x3A
RegAddr: 0x39
PWM2hightime
Bit
Bit
Default
Access
Bit Description
3:0
7:0
0x00, 0x00
RW
PWM2HT[11:0] sets PWM2 high time
Table 44: PWM2hightime
RegAddr: 0x3C
RegAddr: 0x3B
PWM3hightime
Bit
Bit
Default
Access
Bit Description
3:0
7:0
0x00, 0x00
RW
PWM3HT[11:0] sets PWM3 high time
Table 45: PWM3hightime



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