http://www.blkbox.com/~jdb8042/SmallSys/8bitIDE.html http://nimitz.mcs.kent.edu/~clisowsk/8bit/ide8bit.html (dead?) For a complete treatment of IDE interfacing to 8-bit CPUs (particularly the Z80 family), check out issues 56, 63, 64, and 66 of The Computer Journal http://www.psyber.com/~tcj/. There is a simple IDE interface for the Z80 called GIDE (Generic IDE). It should be possible to adapt it to other 8-bit processors. James Newton, webmaster http://get.to/techref jamesnewton@geocities.com 1-619-652-0593 phoneÊ > -----Original Message----- > From: pic microcontroller discussion list > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Omar Martinez > Sent: Tuesday, June 29, 1999 12:53 PM > To: PICLIST@MITVMA.MIT.EDU > Subject: IDE Interfacing > > > John: > I have some information about the IDE interface that I find some > time ago....If my memory don't fail, It's basically use an 82C55 > and a 74LS04 to connect directly to the Hard Disk over an 8 bits data bus. > Also, in the document are a description of the signals pins (In & Out). > If you are interested on it, I could search that info in house > and sent to you... or everybody... > > Best regards. > > Omar Martinez >