From: jschief@finbol.toppoint.de (Joerg Schlaeger)
Subject: Re: difference between VLB and ISA/EISA
Distribution: world
Organization: myself
Lines: 24

hurley@epcot.spdc.ti.com writes in article <1993Apr14.090534.6892@spdc.ti.com>:
> 
> What about VLB and a 486dx50.   Does the local bus still run at 33Mhz or does
> it try to run at 50Mhz???
> 
> 
> Brian
> 
> 
Hi,
VLB is defined for 3 cards by 33MHz
and 2 cards by 40MHz

there are designs with 50MHz and 2 VLB-Slots.
(s. C't 9.92, 10.92, 11.92)

50MHz and 2 Slots are realy difficult to design.

Better OSs (OS/2 & iX) are able to handle more than 16MB of DRAM,
if you use EISA-Bus.
Has someone experience with VLB ??
I think of SCSI-VLB-Busmaster. The problem is the 16bit Floppy DMA
controller, which is unable to reach more than 16MB.
Joerg