🚀 go-pugleaf

	Does anyone have the pin-outs for the DSP SIMM module socket in the  
NeXT?  I wouldn't want to risk static damage to my CPU by probing around to try  
and find out where the address and data bits are connected if someone already  
has documentation of this.
	I'm tired of reading all of the NeXT literature and dealer spec sheets  
which brag about the capability of the DSP to be expanded to 576 KB (192 KWord)  
when there is in fact no way to purchase such memory expansion for the NeXT  
(NeXT's paltry 96 KB DSP Memory Expansion product, N7013, is really only 32  
KWords, and would be laughable if it weren't for the even smaller amount of RAM  
shipped with the standard NeXT).
	I have e-mailed NeXT directly on several occasions as well as talked on  
the phone to NeXT employees, and I was told that NeXT is too busy handling the  
legal issues of licensing with other companies to take time out to send me this  
information.  I don't know why I would need to sign a legal agreement to obtain  
information which any open hardware platform would make freely available,  
especially if said company does not have the time to draw up the legalese.
	The most recent NeXT employee that I corresponded with actually had the  
audacity to suggest that I bother some gentleman down at a California  
university (no, not Stanford) who *was* able to get the information out of  
NeXT.  Obviously, this suggestion was not met with much understanding, because  
the gentleman had no motivation to provide support for NeXT Computer.
	Well, back to my question (and off my soapbox):
	I would also find it useful to hear about current limits and timing  
constraints for the signals that are available on this SIMM socket.  Any  
signals which are directly connected to the DSP 56001 are clearly documented in  
my Motorola DSP56000 User's Manual, but I would need to know which DSP signals  
are available on which SIMM pins.
	Power supply signals and signals that are buffered inside the NeXT are  
obviously not documented elsewhere, unless someone can tell me which chips NeXT  
uses for buffering (in which case I can obtain my own documentation for the  
specific chips and go from there).

Thanks (I would really appreciate any amount of help in this matter),
-- 
Brian Willoughby	Software Design Engineer, BSEE NCSU
BrianW@SoundS.WA.com	Sound Consulting: Software Design and Development
NeXTmail welcome	- NO EMAIL SOLICITATION without prior permission