Does anyone have a complete list (or know where one is in Microchip literature) of the PIC16-family chips that are affected by the GIE bug? This bug has to do with GIE not being successfully cleared if an interrupt occurs while it's being cleared. It is mentioned in section 13.5 Interrupts of the PIC16C6X data sheet. I know that it occurs on the PIC16C61/62/64/65 (not the A or B versions, just the originals) and I have been able to reproduce it here in the lab on original 16C64's and accompanying PICMASTER probes. I suspect it also happens on some of the PIC16C7X devices, and that's why I'd like a complete list. Thanks, -- ______________________________________ Andrew E. Kalman, Ph.D. aek@pumpkininc.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu