Generate a single pulse with ADAU1761 and Sigma Studio

As I'm a new user, Hi Everyone!

I hope you can help me with my problem. I have the EVAL-ADAU1761Z board and I need to generate a single square pulse and send it to HP Out. The pulse has to be 100µs and I don't know how to generate such a short single pulse using Sigma Studio. I have tried using a square wave generator, setting it on 20kHz, then turning it on and off with a script, but I2C bus used to program this board seems to be to slow for that. As a I get 20ms of square wave signal.

Is there any way to program it so it generates just one single pulse?