The main difference between the EVM and the EVB are that the EVB is essentially just a single board computer - you can load code into it and run it, and you can hook up things to the I/O ports via board connectors. The EVM is much more powerful - it includes some in-circuit emulation capability. It has a connector with adapters to fit into the MCU socket for a number of HC11 variants, and allows you to replace the target CPU with the board. The EVM also has a ZIP socket with the ability to program the on-board EEPROM of some HC11 variants. I have the MC68HC11EVM manual, but not in "electric" form - worse case I could unbind it (it's only stapled) and scan it... But that would involve a fair bit of time... so "try real hard" to find another source first - if you don't come up with anything, contact me. Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector.