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- Path: nntp0.brunel.ac.uk!usenet
- From: Philip Chung <ee95pyc@brunel.ac.uk>
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Q: SUPER DENISE AND DENISE ?
- Date: Wed, 17 Apr 1996 11:28:28 +0100
- Organization: Brunel University, Uxbridge, UK
- Message-ID: <3174C7CC.6A3C@brunel.ac.uk>
- References: <cecodere.80.3172809F@andrew.sca.usherb.ca> <31737BC9.39A8@herts.ac.uk>
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- Morgan wrote:
-
- > With OCS (Origional Chip Set), you can only use PAL or NTSC screen modes, upto
- > 640x400 / 640x512. Some allow switching between PAL and NTSC, some do not.
-
- PAL and NTSC switching is handled by the Agnus.
-
- > It also provides a monochore, Hires screen mode (that I forget the name of,
- > the A two thousand and somthing). This provides 1000x1000 resolution with
- > a special monitor.
-
- This is the A2024 mode, for use with Commodores's high persistence A2024 monitor.
-
- > The ECS also allows for 2Mb of Chip RAM, instead of 1Mb.
-
- This again is handled by the Agnus.
-
- > > Which chip set is included in the A500, if it is the old one, is it possible to
- > > upgrade it ?
- >
- > The A500 has OCS as standard, the A500 plus has ECS.
- > It is possible to replace the chips, but I am not sure of the revisions required.
-
- The Super Denise is just a drop in replacement.
-
- --
- __
- __/\_\__ Philip Chung
- /\_\/_/\_\ E-Mail: ee95pyc@brunel.ac.uk
- \/_/\_\/_/ Brunel, the University of West London
- \/_/ Uxbridge, UK
-