== Description ==
IDE8255 (designed by [[Yarek]]) is the simplest IDE multiplexer (8bit to 16bit) that everyone can build. And its also the fastest, the data transfer rate is 173 KB/second. It can be up to 186 KB/sec.
It consists of port decoder, a [[8255 PPI chip]], 74LS139 chip as control gate and some diodes, resistors and capacitors. The most important is, that the 8255 can work in MODE 1 while reading.
The IDE8255 board is intended to be internal upgrade for [[CPC6128|CPC6128]], placed between keyboard and 3" drive. It also can be used as external one, as has 50pin slot for flat cable.
'''Support'''
ROM for native CPC-OS
[http://8bit.yarek.pl/interface/yamod.ide8255/ Home of IDE8255 at Yarek]
== Software ==
ROM files [[File:IDE8255_Yarek_ROMs.dsk]]
[[Category:DIY]]
[[Category:Peripherals]]
[[Category:DATA Storage]]