This has been a 10 year project of mine to do a few simple things in my unit. the project has evolved into using Mega1284P and Wiznet 820io modules. The hardware is all on veroboard and the firmware is programmed in assembler using Atmel Studio.. i know hard core hey..
see my Website (link to the left below "Bitsetter n stuff") for heaps more details.
I saw the your Bitsetter link. This post is very well for wiznet products examples.
I'm a WIZnet engineer and interested in your post.
Can I introduced your post & your web site on WIZnet museum(http://wiznetmuseum.com/)?
I will comment your web site. please check it.