Am Mittwoch, 11. Mai 2016, 16:41:54 schrieb Doug Anderson:

Heiko,

On Wed, May 11, 2016 at 2:09 PM, Heiko Stuebner [off-list ref] wrote:

quoted

Additionally, the i2c-noob in me would wish for a short sentence on
where
the timing values come from (measured, somewhere in the TRM I didn't
find or something completely different).

If you search for "UM10204" you'll find the first link is
<http://www.nxp.com/documents/user_manual/UM10204.pdf>.  That appears
to be the official standard.  At least that's what
<http://www.i2c-bus.org/fast-mode-plus/> says (though they have an old
link).

I did find that document yesterday, but was to blind and somehow only saw the 
separate table for highspeed-timings. On a closer look, I now also found the 
timing-table for the other modes [due to the bigger font-size used there? 
;-) ]