Aubrey McIntosh, Ph.D. wrote: >(I have not looked at the '-A' datasheet, but my samples are in > now, and maybe it is time ... Who knows? perhaps it is all fixed. ) What should be fixed ? > My concern is that the template and code examples are misleading. What template and code examples ? Did I miss something earlier in the thread ? > From the responses, I gather that the consensus is emerging that > 1) indeed the '874 '877 distinction is subtle, In any other way then is documented in the data sheet ? > 2) the register support on the '874 is too weak Well, it is as it is, I suppose. > and incorrectly documented, Examples ? I have checked bot the non-A and the A version of the data sheet and can't find any seriouse error regarding the saving of registers for interrupts, if that's what we still are talking about. Both data sheets gives a clear solution to this even on the 873/874 devices. I probably must have missed something earlier in the thread... Regards Jan-Erik. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics