Hi, I have a SWTPC 6800 that I updated to a 6809 (decades ago) using a Percom SBC/9. The documentation I have found doesn't seem to match my board. The memory map shows 2K of EPROM starting at F800, whereas my board has 4K of EPROM starting at F000. There are other differences as well. If anyone can give me any information on this board I'd greatly appreciate it.