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Can PWM output be set to start at "H" level?

Latest Updated:03/01/2005

Question:

(PWM Output)  Can PWM output be set to start at "H" level? [2005/03]

Answer:

After PWM is enabled using the PWM function enable bits, PWM output will start from "H" after a brief "L" level output from the respective PWM pin. "L" level output duration is as follows:

  • When the count source selection bit = "0"
    (n + 1)/(2×f(XIN)) seconds       n = value set in the PWM prescaler
  • When the count source selection bit = "1"
    (n + 1)/f(XIN)) seconds       n = value set in the PWM prescaler

(#104811)

Suitable Products
3803H
3803L
3850A
3858