Thomas Coonan wrote: > What I have is meant to be synthesizable core and not timing-accurate > bus model. However, you might find my 16C5X VHDL core otherwise > helpful. It's on the net on my page. A question, I am interested in: What about Microchip's copyright of the PIC architecture, instruction set, etc.? Wolfram -- +-----------------------------------------------+ ! Wolfram Liebchen, liebchen@ipserv.ffo.fgan.de ! ! Forschungsinstitut fuer Optik ! +-----------------------------------------------+