stmpe16m31 STMicroelectronics, stmpe16m31 Datasheet - Page 43

• Manufacturer Part Number: stmpe16m31
• Description: S-touch? 16/24-channel Touchkey Controller With Pwm And Ratio Engines
• Manufacturer: STMicroelectronics

STMPE16M31, STMPE24M31
PWM_n_RAMP_RATE
Address:
Type:
Reset:
Description:
INV
RW
7
0
[5:3] RampDown
[2:0] RampUp
[7] INV
[6] Reserved
Reserved
RW
6
0
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
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
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
0x42, 0x46, 0x4A, 0x4E, 0x52, 0x56, 0x5A, 0x5E
RW
0x00
Setting of ramp rate
RW
5
0
RampDown
Doc ID 16174 Rev 3
RW
4
0
RW
3
0
RW
PWM-N ramp rate register
2
0
RampUp
RW
1
0
PWM controller
RW
0
0
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