5 Feb
2010
5 Feb
'10
2:17 p.m.
On Feb 5, 2010, at 5:14 PM, Chuck Guzis wrote:
The SBC6120 comes to mind. Considering the number of units sold
and the level of commercialization of the whole deal, I'm not sure
I'd consider it "hobbyist clan".
8255s are
frequently used to interface to IDE drives, and mode
switching is required in that application, and it does get in the
way. Mostly people have dealt with it by using inverters on some of
the lines.
Really? I don't think I've seen a single piece of modern gear made
in the last 10 years that uses an 8255 to interface to an IDE drive.
They do have specialized chips to do that...
If it's the hobbyist clan, well, that's a different matter. I'd think even a small CPLD would do a better
job.
That's what I'd have done on that board.
-Dave
--
Dave McGuire
Port Charlotte, FL