AW9233

June 2018 V1.2

www.awinic.com.cn

2

Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD

All trademarks are the property of their respective owners.

1

PIN CONFIGURATION AND TOP MARK....................................................................................................5

2

PIN DEFINITION...........................................................................................................................................5

3

FUNCTIONAL BLOCK DIAGRAM...............................................................................................................6

4

TYPICAL APPLICATION CIRCUITS ...........................................................................................................6

5

ORDERING INFORMATION ........................................................................................................................7

6

ABSOLUTE MAXIMUM RATINGS(NOTE 3) ....................................................................................................7

7

ELECTRICAL CHARACTERISTICS............................................................................................................8

8

I2C INTERFACE TIMING ............................................................................................................................10

9

FUNCTIONAL DESCRIPTION ...................................................................................................................11

9.1

WORK MODE ..................................................................................................................................................... 11

9.2

RESET ................................................................................................................................................................ 11

9.2.1

HARDWARE RESET........................................................................................................................... 11

9.2.2

SOFTWARE RESET ........................................................................................................................... 11

9.3

I2C INTERFACE.................................................................................................................................................. 11

9.3.1

DEVICE ADDRESS ............................................................................................................................. 11

9.3.2

DATA VALIDATION............................................................................................................................. 12

9.3.3

ACK(ACKNOWLEDGEMENT)............................................................................................................. 12

9.3.4

I2C START/STOP ................................................................................................................................ 12

9.3.5

WRITE CYCLE .................................................................................................................................... 13

9.3.6

READ CYCLE...................................................................................................................................... 13

9.4

OSCILLATOR ..................................................................................................................................................... 14

9.5

CAPACITIVE TOUCH DETECTION ................................................................................................................... 14

9.5.1

TOUCH STATUS AND INTERRUPT................................................................................................... 15

9.5.2

GESTURE STATUS ............................................................................................................................ 15

9.6

LED DRIVER ...................................................................................................................................................... 16

9.6.1

LED BRIGHTNESS CONTROLLER .................................................................................................... 17

9.6.2

LED CONSTANT CURRENT DRIVER ................................................................................................ 17

9.6.3

ASP ..................................................................................................................................................... 17

9.7

LINK TOUCH STATUS TO LED LIGHTING EFFECT......................................................................................... 25

9.7.1

DIRECT OUTPUT MODE.................................................................................................................... 25

9.7.2

PROGRAM MODE .............................................................................................................................. 25

10

REGISTER DESCRIPTION ......................................................................................................................27

10.1

REGISTER CONFIGURATION......................................................................................................................... 27

10.2

GLOBAL REGISTER DESCRIPTION ............................................................................................................... 30

10.2.1

IDRST, CHIP ID AND SOFTWARE RESET ...................................................................................... 30

10.2.2

GCR, GLOBAL CONTROL REGISTER............................................................................................. 30

10.3

CAPACITIVE TOUCH DETECTION REGISTERS............................................................................................ 30

10.3.1

SLPR, SENSOR SLEEP CONTROL REGISTER .............................................................................. 30

10.3.2

KINTER, KEY INTERRUPT ENABLE REGISTER............................................................................. 30

10.3.3

OSR1~2, TOUCH STATUS CONNECTING LED CONTROL REGISTER ........................................ 30