RTC RV-1805 32k output

Hello,
in the hardware overview of the RTC RV-1805 is written that the INT-Pin is a configurable as a square wave output up to 32.768 kHz.

But - how can this be configured? I can’t find any hint to do this, but this function is very important for my project.

I use an Arduino Nano ESP32

Thanks for any assistance
Gerhard

It’s a bit of a ways down from the link I’m posting under ‘ Interrupt Functionality’ , “0b001” Qwiic Real Time Clock Module (RV-1805) Hookup Guide - SparkFun Learn