Information about the k8055

Where can I find more information about the k8055?
Like the the circuit diagram desing of K8055 that I was given before:
box.net/shared/k2bh8larvn

I need it for a university project. Things like how it works, its functions?
I hope I posted in the right BOARD

The only “official” documents available for the K8055 are on this page: velleman.eu/distributor/supp … 8055&type=

You may try Google to find some more info.

Here is one such file: wse2009.warpevents.eu/uploads/tx … -Board.PDF

Please see also: viewtopic.php?f=3&t=4492