AW9120
Feb. 2019 V1.4
CONTENT
1 PIN CONFIGURATION AND TOP MARK....................................................................................................4
2 PIN DEFINITION...........................................................................................................................................4
3 FUNCTIONAL BLOCK DIAGRAM...............................................................................................................6
l
4
5
6
7
8
TYPICAL APPLICATION CIRCUITS ...........................................................................................................6
ORDERING INFORMATION ........................................................................................................................7
ia ABSOLUTE MAXIMUM RATINGS(NOTE 3) ....................................................................................................7
t ELECTRICAL CHARACTERISTICS............................................................................................................8
n I2C INTERFACE TIMING ..............................................................................................................................9
9
e FUNCTIONAL DESCRIPTION ...................................................................................................................10
9.1
9.2
fid WORK MODE ..................................................................................................................................................... 10
9.1.1 POWER ON ........................................................................................................................................... 10
9.1.2 WORK MODE ........................................................................................................................................ 10
RESET ................................................................................................................................................................ 11
9.2.1 HARDWARE RESET........................................................................................................................... 11
9.3
n 9.2.2 SOFTWARE RESET ........................................................................................................................... 11
I2C INTERFACE.................................................................................................................................................. 11
9.3.1
9.3.2
o DEVICE ADDRESS ............................................................................................................................. 11
DATA VALIDATION............................................................................................................................. 11
9.3.3
9.3.4
9.3.5
C ACK(ACKNOWLEDGEMENT)............................................................................................................. 11
I2C START/STOP ................................................................................................................................ 12
WRITE CYCLE .................................................................................................................................... 12
9.4
9.5
ic 9.3.6 READ CYCLE...................................................................................................................................... 13
OSCILLATOR ..................................................................................................................................................... 14
LED DRIVER ...................................................................................................................................................... 14
9.5.1 LED BRIGHTNESS CONTROLLER .................................................................................................... 14
10
in 9.5.2 LED CONSTANT CURRENT DRIVER ................................................................................................ 14
9.5.3 ASP ..................................................................................................................................................... 15
REGISTER DESCRIPTION ......................................................................................................................23
w 10.1 REGISTER CONFIGURATION......................................................................................................................... 23
10.2 GLOBAL REGISTER DESCRIPTION ............................................................................................................... 24
a
10.2.1 IDRST, CHIP ID AND SOFTWARE RESET ...................................................................................... 24
10.2.2 GCR, GLOBAL CONTROL REGISTER............................................................................................. 24
10.3 LED EFFECT CONTROL REGISTER .............................................................................................................. 24
10.3.1 LER1, LED DRIVER ENABLE REGISTER ........................................................................................ 24
10.3.2 LER2, LED DRIVER ENABLE REGISTER ........................................................................................ 24
10.3.3 LCR, LED EFFECT CONFIGURATION REGISTER ......................................................................... 24
10.3.4 PMD, PROGRAM MODE REGISTER ............................................................................................... 25
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