Fabio Pereira: > When in reset, all I/O pins (except that ones used in the ICSP) are in > the high impedance state. > This information can be found on the programming specifications of the > devices, ex.: page 5 of DS39589A or page 5 of DS39576A. Thanks for the reference. According to those programming specs, the "Programming/Verify mode" places the unused pins in the high impedance state. I'm concerned about the period of time during power-up when the chip is held in reset - not during programming. is it common knowledge that the two modes are the same as far as the i/o pins are concerned? -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu