As some of the MTX forum will have receive 8255s in their goody bag of ICs and perhaps wondering whagt they can be used for:
1) The simpliest option is as three 8 bit paralle I/O ports ( or as an LPT1 printer port )
2) Joystick port controller to read multiple Atari type joysticks
3) PATA IDE Harddrive interface
4) Compact Flash PATA IDE interface
5) Obsolete use : To read keyboard Matrix for old keyboards
60 Custom use ... ??
8255 as CF reader / hardDrive interface :
http://www.retroleum.co.uk/electronics- ... interface/
http://s100computers.com/My%20System%20 ... 20Card.htm