Article View: comp.sys.amiga.tech
Article #2157Re: maximum memory
From: Bill Seymour
Date: Wed, 15 Nov 1989 03:05
Date: Wed, 15 Nov 1989 03:05
22 lines
1628 bytes
1628 bytes
From article <3157@ccncsu.ColoState.EDU:, by conca@handel.cs.colostate.edu (michael vincen conca):
:
: Page 2-1 of Motorola's 68000 Microprocessor User's Manual states that
: the 68000 can 'directly access 16 megabytes' of memory. What
: limits the Amiga to a max of 9 megs of memory? Is it the custom
: chips or some other element in the hardware?
There are several areas in the memory map that can't be used for
expansion memory, or at least not now... The one meg right abouve chip
mem is reserved for future chip ram extensions, the area between A00000
and C00000 is set aside for I/O devices, as is D00000 and E00000. F00000
is mostly ROM space.
: -=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=--=*=-
: Mike Conca, Computer Science Dept. * conca@handel.cs.colostate.edu
: Colorado State University * conca@129.82.102.32
: 'Back off man - I understand computers!'
--
-Bill Seymour ...tektronix!reed!percival!agora!billsey
...tektronix!sequent.UUCP!calvin!billsey
Bejed, Inc. NES, Inc. Northwest Amiga Group At Home Sometimes
(503) 691-2552 (503) 246-9311 (503) 656-7393 BBS (503) 640-0842
Technical Details
Message-ID:
<1695@agora.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!attcan!sobmips!uunet!zephyr.ens.tek.com!tektronix!psueea!parsely!agora!billseyReferences:
<3157@ccncsu.ColoState.EDU:Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!attcan!sobmips!uunet!zephyr.ens.tek.com!tektronix!psueea!parsely!agora!billsey From: billsey@agora.UUCP (Bill Seymour) Newsgroups: comp.sys.amiga.tech Subject: Re: maximum memory Message-ID: <1695@agora.UUCP> Date: 15 Nov 89 03:05:01 GMT References: <3157@ccncsu.ColoState.EDU: Organization: Advanced Solutions, Hillsboro, OR Lines: 22