Xref: utzoo comp.sys.amiga.hardware:8065 comp.sys.amiga.tech:17965
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!oakhill!motaus!skipper
From: skipper@motaus.sps.mot.com (Skipper Smith)
Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.tech
Subject: Re: 68000 timing
Message-ID: <1991Apr9.165150.12797@motaus.sps.mot.com>
Date: 9 Apr 91 16:51:50 GMT
References: <3319@hexagon.se>
Organization: Motorola Semiconductor, Austin, Texas
Lines: 39

In article <3319@hexagon.se> frix@hexagon.se (Fredrik Rothamel) writes:
>I've got this small question...
>
>Does anyone have som info on 68000 signal timing ?
>
>I'm currently interested in how long the processor can wait for a DTACK
>signal, but info on other signals would also be great. 
>
>Thanx in advance.
>-- 
>	-- The above expressed opinions are completely my own. --
>Fredrik Rothamel					    Fidonet 2:204/117.3
>frix@hexagon.se				   ...!sunic!kullmar!pkmab!hexagon!frix

The answer for your question in theory is "forever" but it turns out that this
is not the case on the Amiga since the Zorro II spec indicates that /DTACK will
be generated automatically and you have to prevent it.  If what you really 
want is the specs for the 68000 then please contact:
 
Motorola Ltd. 
European Literature Center
88 Tanners Drive
Blakelands Milton Keynes, MK145BP, England
 
or
 
The sales office in (ugh, I missed where you are from.  If Sweden is not       
correct, write back to me and I will give you the right number) Sweden at
(08)83 02 00- that is in Solna
 
And ask for the MC68000UM and timing specifications (they are separate now, at
least in the English version- although I don't know if we write our manuals
in any other language).
 

-- 
Skipper Smith                             | skipper@motaus.sps.mot.com
Motorola Technical Training               | 8945 Guilford Rd  Ste 145  
All opinions are my own, not my employers | Columbia, MD 21046