[Coco] [color computer] Just imagining...

[jdaggett at gate.net]

Mike 

With SDRAM you will need a SDRAM controller. 

There is a SDRAM dual port and single port controller that can be integrated 
into a CPU core. I t is configured so that it can be accessed like Static ram and 
will handle 8 MB SDRAMS. 

All the modern x86 processors now have the SDRAM controller as part of the 
CPU core. DOing that for a 6809 core would open up greater possibilities. 

james


On 31 Jan 2006 at 11:16, Mike Pepe wrote:

Date sent:      	Tue, 31 Jan 2006 11:16:44 -0500
From:           	Mike Pepe <lamune at doki-doki.net>
To:             	CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Subject:        	Re: [Coco] [color computer] Just imagining...
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> Understood, but I was thinking of one CPU to handle the OS, and then 
> driver-level stuff to offload to the others. One CPU could handle all 
> the graphics, one could be configured as a DMA or handle I/O. I've done 
> some preliminary feasability studies on the idea, and with some sub-50ns 
> SRAM or SDRAM it just might work...
> 
> -Mike