Philip Pemberton wrote: > It sure as hell can do it - the > programming algorithm REQUIRES it (if the buffers couldn't be > tristated, you wouldn't be able to read the program/data memory out of > the PIC). Actually the programming algorithm only requires the programmer to release PGD. PGC is always driven by the programmer, and it's quite possible to fully program a chip while always driving PGC. However, I suspect the ICD2 does have the capability to release PGC too. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist