The trick I know about only works with non-registered pals. You would read the whole truth table from it and then there were some programs out there that would reduce the truth table back to a set of equations. Now with registered pals you can't do that as easily since there is an "internal state" that you have to take into account -- not just a set of inputs and outputs. Now of course there might also be some people out there that have figured out how to work around the security fuse when you apply just the right over/under voltage, etc.. (always popular in the smartcard cracking community). Kurt
Can anyone confirm that such a program exists and if so what it is called and where can you get a copy.
Or, is ther any reliable method of reading protected PAL's.
Regards
Peter