The reset PWM user module don't works in that way. Has the datasheet states:
"Resets the period counter to “Period” and continues normal operation.
NOTE: While in Reset the PWM, PWM1 or PWM2 outputs are disabled (driven ‘0’). For the Fixed
Function Implementation the PWM output is driven ‘1’ during reset. An schematic fix for this is
provided in the Implementation details towards the end of the document in the section “Reset in
Fixed Function Block”."
That is, it must be asserted with a logical '0' to get the output. I only have to change to 'logic 1' when I want to reset. So a logic low must to be set into Reset input to make it works.