[comp.sys.next] DSP56001 and DRAM

andrey@beyond.caltech.edu (Andre Yew) (04/02/91)

	I'm starting to design a project around the Motorola DSP56001 and need
more memory than the 64K of SRAM that the 56001 can see.  So, has anyone out 
there hooked up DRAM, by any means, to the 56001?  The really cheesy plan that
I have now is to use another processor and have it look at some memory location
(treating the 56001 like an I/O device) and just trnasferring that to DRAM.  Of
course the other processor I'm using already knows about DRAM.  Does anyone
know how the NeXT interfaces its 56001 to the 68030?  I've heard things
like DMA, but the logic and timings required for that must be horrendous.
Anyway, you can mail me a reply and I'll post a summary if there's sufficient
interest (or replies!) or if you feel this is a worthwhile subject, then you
can post it.

						Andre Yew
						andrey@through.cs.caltech.edu    
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andrey@through.cs.caltech.edu	  		      Andre Yew
       131.215.128.1		
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