> To prevent a device configured with INTOSC and > internal MCLR from executing after exiting Program/ > Verify mode, VDD needs to power-down before VPP. > See Figure3-3 for the timing. I did not pay any attention to this, and did not meet any trouble. But that might be because I don't care whether the device starts executing. Do you care? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist