The duration of pulses on PULSE_OUTn signals is exactly one period of the
1588 adjustable clock. This clock rate depends on several settings and
the input reference clock rate. Details are explained in P2020RM, Section 14.54.9.
Longest and shortest pulse duration is achieved when TMR_ADD is set to
1 and to 0xffffffff, correspondingly. Note that the value of TMR_ADD
is usually selected based on the requirements to the rate of the local
network-synchronized clock. If the resulting PPS pulse width does not
meet the requirements of your application, adjust it in an external circuit.
Have a great day,
Platon
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