Hello, I'm wondering if anyone knows of a way to input an asynchronous signal to the Virtex 6 on the ROACH2. My goal is to design an all internal time-to-digital converter with sub-clock period resolution, and would like the ability to send a signal through a string of buffers with registers tapped after each one, and upon the arrival of the clock pulse sample the entire buffer lines registers. More specifically my question is, Does the signal get latched when using gpio's, even when not packing a register in the pad?
Thanks in advance, Adrian Sinclair

