18.1: ststem clock vs. timestamp

Hello,

I want to use FreeRTOS and also to measure time accurately.

According to n2sw_nii5v2.pdf, page 14:

"An individual timer peripheral can behave as either a system clock or a timestamp, but not both."

It means that my HW design has to include 2 timers.

Am I right ?

What is the max. resolution of the system clock timer ?

Thank you,

Zvika