I believe that note 6 on page 4 of the UCD9240 datasheet is an error. It says "The PMBus command: EADC_SAMPLE_TRIGGER defines the start of the 32ns ADC sample window. So the minimum EAD_SAMPLE_TRIGGER time is 208 + 32 = 240 ns." My understanding is that the 32 ns sample window immediately precedes (in time) the trigger point, and that the actual minimum EAD_SAMPLE_TRIGGER time is 224 ns.
Your observation about the sample window is correct.
Submitted for correction: Update 80ns reference for EADC sample window to 32ns.
One of my other posts references the 80nsec error in Power Designer. This post talks about the error in the UCD9240 datasheet. Did you mean to say that the datasheet error was submitted for correction?