STMPE16M31 datasheet(43/85 Pages) STMICROELECTRONICS

43 / 85 page

STMPE16M31, STMPE24M31

PWM controller

Doc ID 16174 Rev 4

43/85

PWM_n_RAMP_RATE

PWM-N ramp rate register

Address:

0x42, 0x46, 0x4A, 0x4E, 0x52, 0x56, 0x5A, 0x5E

Type:

Reset:

0x00

Description:

Setting of ramp rate

543

210

INV

Reserved

RampDown

RampUp

000

[7] INV

LED driving/sinking mode

Write ‘1’ for LED sinking mode (HIGH = LED Off, LOW = LED On)

Write ‘0’ for LED driving mode (HIGH = LED On, LOW = LED Off

[6] Reserved

[5:3] RampDown

Set the PWM ramp down rate

‘000’ : 1/4 of time unit per brightness level change

‘001’ : 1/8 of time unit per brightness level change

‘010’ : 1/16 of time unit per brightness level change

‘011’ : 1/32 of time unit per brightness level change

‘100’ : 1/64 of time unit per brightness level change

’101’ : 1/128 of time unit per brightness level change

‘110’ : reserved

‘111’ : reserved

[2:0] RampUp

Set the PWM ramp up rate

‘000’ : 1/4 of time unit per brightness level change

‘001’ : 1/8 of time unit per brightness level change

‘010’ : 1/16 of time unit per brightness level change

‘011’ : 1/32 of time unit per brightness level change

‘100’ : 1/64 of time unit per brightness level change

’101’ : 1/128 of time unit per brightness level change

‘110’ : reserved

‘111’ : reserved

Obsolete

Product(s)

- Obsolete

Product(s)

STMPE16M31 数据表(PDF) 43 Page - STMicroelectronics

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