I have a couple of interesting boards that appear to follow the Exorset bus. I've been able to follow the internet docs (I'net search) only as far as finding the Motorola Exorcisor (sp?) docs. While that' helpful the Exorcisor is for the MC6800 and the Exorset the MC6809. There are some differences and I've not been able to find out what they are. Has anyone found any Exorset documents? Bitsaver seems a bit broken in that it has nothing on the Exorcisor, the Exorset or the Exormac. -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies