NeXT Computers

da9000 · Joined: 30 Sep 2006 Posts: 387 Location: Silicon Valley

http://amiga.resource.cx/exp/xcalibur

Check out the photos, but most importantly the PDFs that are at the bottom.

The interesting part is that it needs an A3640 to plug into, and I think that's where it gets the clock signal from as well. Now, even though it plugs right into an existing 040 socket, I'm not sure it will work on any 040 machine, because this sucker also has memory on it and perhaps it uses certain of those 040 pins for other things (in a propriatery fashion).

Any ideas from the hardware gurus in here?

Andreas · Joined: 27 Dec 2005 Posts: 355 Location: Germany

da9000 · Joined: 30 Sep 2006 Posts: 387 Location: Silicon Valley

What's the memory bus width of a NeXT box? I thought it was also 32bits wide, not 64bit (or more). But the point is that this card will take an existing 32bit memory architecture (Amiga) and add an 040 with a 64bit interleaved memory bus, so basically producing 4x the memory bandwidth. All this I got from the .pdfs that came with the board.

Of course if the 040 can use that or not, I'm not sure. It's complicated if you don't know the exact setup latency of the memory, burst speed of memory and burst capability of the CPU. I don't Sad

Anyways, I was just asking Andreas, not saying I'm going to do it Smile

Andreas · Joined: 27 Dec 2005 Posts: 355 Location: Germany

da9000 · Joined: 30 Sep 2006 Posts: 387 Location: Silicon Valley

Andreas,

that benchmark link doesn't work :-(

Could you please repost a working one?

Andreas · Joined: 27 Dec 2005 Posts: 355 Location: Germany

Andreas · Joined: 27 Dec 2005 Posts: 355 Location: Germany

The picture itself do i found on my own file database:

da9000 · Joined: 30 Sep 2006 Posts: 387 Location: Silicon Valley

Cool, thank you Andreas!