G400HDR JTAG Pad

Thought I’d ask before I ruin something.

I assume grounding the pad activates JTAG.

Is this a ‘touch to ground’ or ‘connect to ground’ to begin JTAG output?

Not that important but I would like to have some additional output on a problem I have during debug of a application.

Never used JTAG so sorry for the dumb question…