stmpe16m31 STMicroelectronics, stmpe16m31 Datasheet - Page 46

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

Basic PWM programming
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The registers need to be programmed for this sequence :
Figure 13. Fixed brightness output
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On Period = Period 0[1:0] * Time Unit [3:0]
Off Period = Period 1[1:0] * Time Unit [3:0]
Duty cycle during On Period = Brightness [7:4]
Number of cycles = Repetition [3:0]
Ramp-Mode is enabled
Ramp Up/Down Rate is programmable
On Period = Period 0[1:0] * Time Unit [3:0]
Off Period = Don’t Care
Duty Cycle during On Period = Brightness [7:4]
Number of cycles = Repetition [3:0] = 0 (infinite repetition)
Doc ID 16174 Rev 3
STMPE16M31, STMPE24M31