AW9233CSR datasheet(22/48 Pages) AWINIC

22 / 48 page

AW9233

June 2018 V1.2

www.awinic.com.cn

When SRAM program running, if Ch field or value of Rx in LED control command is

‘11111’, the current

command is active for all LED with setting of CTRSR.bitn=0. If Ch field or value of Rx in LED control command

‘11110’, the current command is only active for those channel with setting of GMSKx=0.

When LED instruction is come from I2C interface directly,

it is recommended to use only the command with

immediate data. If the Ch field in command is

“11111”, the current command is only active for those LED with

STRSR.bitn=1..

Table 5 LED Control Instruction explanation

Instruction

Description

SETPWMR

Rx Ry

Set the PWM brightness level with parameter in register

Rx: LED channel number, 2,4,6 for LED 1~ LED 3 respectively

Ry: Brightness level, 0~255

RAMPR

Dir Rx Ry

Set the Fade-in/Fade-out for specified step with parameter in

Dir: 1: Fade-in; 0: Fade-out

Rx: LED channel number, 2,4,6 for LED 1~ LED 3 respectively

Ry: the step number of Fade-in/Fade-out

SETSTEPTMRR

Pre Rx Ry

Set the RAMP slope with parameter in register

Pre: basic time unit,

0: 0.5ms; 1: 16ms

Rx: LED channel number, 2,4,6 for LED 1~ LED 3 respectively

Ry: RAMP step time = (Ry+1)*Pre, 0~255

Immediate Data

SETPWMI Ch Im

Set the PWM brightness level with immediate parameter

Ch: LED channel number, 2,4,6 for LED 1~ LED 3 respectively

Im: Brightness level, 0~255

RAMPI Dir Ch Im

Set the Fade-in/Fade-out for specified steps with

immediate

parameter

Dir: 1: Fade-in; 0: Fade-out

Ch: LED channel number, 2,4,6 for LED 1~ LED 3 respectively

Im: the steps of Fade-in/Fade-out

SETSTEPTMRI

Pre Ch Im

Set the RAMP step time with immediate parameter

Pre: basic unit of time,

0: 0.5ms; 1: 16ms

Ch: LED channel number, 2,4,6 for LED 1~ LED 3respectively

Im: RAMP step time = (Im +1)*Pre, 0~255

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