What does "HW Pull Up/Down" mean?

Hello,

in Cubase’s VST Audio System settings, what does “HW Pull Up/Down” mean?

From the wrong tool, but…

https://www.lynda.com/Pro-Tools-tutorials/Understanding-video-formats-codecs-pull-uppull-down/77862/85423-4.html

It has to do with the interface processing most of the audio stream in the hardware or in general let the cpu take care of it. Sometimes you have an option in the driver settings with the choice to set it off or on but for units will have it switched off by default and let the cpu take care of the processing.