Truth be told if youi wanted to scratch build now you'd do it in VHDL or Verilog in one of the FPGAs. John > I think you will find the most recent versions of the 2901 > family are still > available. Great things to have around. In one of my past > incarnations I > serviced to chip level CPU cards that had processors built > around these. It > was interesting to see how the different generations of the > CPU family had > things tweaked to get around the chip speed limitations to > get the CPU cycle > time down. > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body