Hi everybody, While I am reading the programmer spec for pic16F628, I didn't understand t= he figure 2-7 and 2-8 about begin programming cycle and begin erase/program= ming cycle (page 7 and 8). In table 2-1 page 4, it shows that these commands (mentionned above) doesn'= t take no data, but in the figures show some data clocked just after the co= mmand and the delay Tprog and Tera should be processed just after this data. I don't know which data should be outputed after those commands (programmin= g and erase cycle)? I would be grateful if anyone help me to understand this problem. thank you in advance best regards, Mustapha ELKEJBOUT --------------------------------------- "Every one has to do what he can do according to how it can be truly done" For whom the bell tolls, Ernest Hemingway. = --------------------------------- D=E9couvrez une nouvelle fa=E7on d'obtenir des r=E9ponses =E0 toutes vos q= uestions ! Profitez des connaissances, des opinions et des exp=E9riences de= s internautes sur Yahoo! Questions/R=E9ponses. -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist