Rob Hamerling wrote: >> Rob Hamerling wrote: >>> It's the overlap of instruction fetching and execution which >>> *effectively* doubles the speed (compared to non-overlapping). >>> See Exampe 2-1 on page 10 > > Jan-Erik Soderholm wrote: >> Douples compared to what ? > > As I said: 'compared to non-overlapping'. Fetch/execution overlapping > seems to be standard in the baseline, unlike in the midrange. > > Regards, Rob. I compared the new (?) MCV14A, the PIC10-series and the PIC16F628A datasheets. They all have the same timing diagrams. The next fetch is done while the former instuction executes in all three cases. Nothing "doubles". Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist