@ajb2k3 Thanks for the response. Yes, I had found these before, but there for the FT6336U there is only an .xlsx document with a very brief description of the chip registers.

I am looking for a bit more detail...

Hi,
Where do I find a complete datasheet for the FT6336U touch controller ? In particular a complete and comprehensive I2C register description. I'm experiencing trouble with the touch sensitivity of the Core2 touch panel in 'hi-EMI' environments and would like to adjust touch threshold values.
Thanks