Re: Are there any 65816 card schematics?

["RedskullDC" <RDC@oz.org>]

Hi Tristan,

Check out:
http://www.baltissen.org/htm/02to816.htm

Probably as good a place as any to start in your quest.

Red


"Tristan Mumford" <xtristan.xmumford@xgmail.xcom> wrote in message 
news:4595d39b$0$68952$c30e37c6@lon-reader.news.telstra.net...
> Hello.
> I was wondering if there are any schematics for a 65816 card. I pretty 
> much
> just want them for research. I want to make a 65816 card, but I have no
> idea if it is viable. I know there's the Zip Chips which replace the CPU
> (right? I've never actually seen one) And the Z80 cards which live in a
> card slot. So I'm guessing there's no real problem with having a 65816 in 
> a
> slot?
>
> The address/databus demuxing, RAM on the card etc is easy enough. I was 
> just
> wondering about the 65816 <-> System BUS interface.
>
> The extra maximum speed of the '816 doesn't matter to me. It was just 
> going
> to run at the system speed. It's the extra address space and opcodes that
> interest me.
>
> I'm asking because I'd like to do a USB board but it seems like a waste of 
> a
> slot to have just the little USB interface and nothing else on a board.
>
> While I'm at it. Should I bother with the uC based low level interface for
> the USB still or just use the IC directly like the other USB interfaces?
>
> Sure it's a rather pointless project, but IMHO it'd be fun to play with at
> least. And it'd give a use to my otherwise useless Apple ][ (All my good
> bits are in the platinum).
>
> -- 
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