Path: utzoo!attcan!uunet!husc6!mailrus!iuvax!bkliewer
From: bkliewer@iuvax.cs.indiana.edu (Bradley Dyck Kliewer)
Newsgroups: comp.sys.ibm.pc
Subject: EISA spec (was Usable I/O Address range on the PC bus ...)
Keywords: Limited to addresses up to 0x0400 only??
Message-ID: <15272@iuvax.cs.indiana.edu>
Date: 23 Nov 88 14:32:42 GMT
References: <5065@whuts.ATT.COM> <4229@encore.UUCP> <1275@cfa.cfa.harvard.EDU> <3626@pt.cs.cmu.edu> <1276@cfa.cfa.harvard.EDU> <15225@iuvax.cs.indiana.edu> <23609@amdcad.AMD.COM>
Reply-To: bkliewer@iuvax.UUCP (Bradley Dyck Kliewer)
Organization: Indiana University CSCI, Bloomington
Lines: 19

>|address, and the EISA specification will probably do the same.
>
>This is totally irrelevant. You're not going to plug your XT bus board
>into a micro channel. As for EISA, since it must work with old boards
>(or what's the point) and old boards claim all 10-bit aliases, there
>is nothing wrong with the LIM technique, even in a post-EISA world. 

Not totally irrelevant if you are designing cards for both.  As for EISA,
I'm almost positive I've read that it will allow 16 bit addresses, but I]
haven't seen anything that says how.  I think they are planning to do 
something weird with the slots make each slot somewhat unique i.e. the
bus hardware would 'know' that slot 5 is uses a 10-bit address and only
passes I/O addresses which don't use the 6 high bits (this is purely
speculation on my part based on the very sketchy EISA information I've
seen).

Bradley Dyck Kliewer                Hacking...
bkliewer@iuvax.cs.indiana.edu       It's not just an adventure
                                    It's my job!