*BSD News Article 9177


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From: roell@informatik.tu-muenchen.de (Thomas Roell)
Subject: Re: ET4000/W32 and VESA VL-Bus
In-Reply-To: thomas@aeon.in-berlin.de's message of Tue, 15 Dec 1992 19:08:25 GMT
References: <BzBEI1.CH@aeon.in-berlin.de>
Sender: news@Informatik.TU-Muenchen.DE (USENET Newssystem)
Organization: Inst. fuer Informatik, Technische Univ. Muenchen, Germany
Date: Sun, 20 Dec 1992 15:33:14 GMT
Message-ID: <1992Dec20.153314.24148@Informatik.TU-Muenchen.DE>
Lines: 26

Oooppps, now I can see the point that caused confusion.

The ET4000 and the ET4000/W32 are completly different chips. The latter one
is Tsengs answer to the other Windows Accellerators. It has a full blown
graphics engine, from the set of possible things compareable to the S3
chips, but more tuned for MS-Windows. It ought to use DRAMs, and Tseng
said it will extend the chips speed up to a total memory bandwidth of
160 MB/sec enabling users to display 1280x1024 @ 70Hz. Most of the
chip is backwards compatible to the ET4000, but has an additional set
of memory mapped registers for the graphics engine (similar to the XGA).

I must admit that most of this information is from an article in a
german magazine, which was sometimes very unclear (and hence I didn't cite
here more details). One OEM board company is said to ship ET4000/W32 based
boards already, but I cannot approve this.

Before I forget it, the chairman of the VESA Local Bus commettee is a
manager from Tsengs Labs. Hence one can expect this chip running on the
local bus pretty neatly ...

- Thomas
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Das Reh springt hoch, 				e-mail: roell@sgcs.com
das Reh springt weit,				#include <sys/pizza.h>
was soll es tun, es hat ja Zeit ...