ST10R272L - PWM MODULE
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After starting the timer (i.e. PTR3 = ‘1’), the output pulse may be modified via software.
Writing to timer PT3 changes the positive and/or negative edge of the output signal,
depending on whether the pulse has already started (i.e. the output is high) or not (i.e. the
output is still low). This (multiple) retriggering is always possible while the timer is running,
i.e. after the pulse has started and before the timer is stopped.
Loading counter PT3 directly with the value in the PP3 register will abort the current PWM
pulse upon the next clock pulse (counter is cleared and stopped by hardware).
