Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!lll-tis!ames!umd5!purdue!gatech!udel!rminnich
From: rminnich@udel.EDU (Ron Minnich)
Newsgroups: comp.sys.amiga
Subject: hardware question on DTACK'
Message-ID: <1107@louie.udel.EDU>
Date: 5 Feb 88 01:08:15 GMT
Reply-To: rminnich@udel.EDU (Ron Minnich)
Organization: University of Delaware
Lines: 11

I am trying to add some memory to an A1000. For several reasons
the hardware is not asserting DTACK. This brings up a question:
something else is! Is there a watchdog timer in the custom chips that
automatically asserts DTACK after x cycles? I guess there would have to
be, else if you addressed non-existent memory the thing would hang. 
Can anyone fill me in? The hardware manual is not helpful in this case.
I am hoping to hear that DTACK is not just asserted always by the hardware 
as this memory cycles in 675 ns (i.e. slowly) so i really need DTACK
to work right.

-- 
ron (rminnich@udel.edu)