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Conference hydra::amiga_v1

Title:	AMIGA NOTES
Notice:	Join us in the NEW conference - HYDRA::AMIGA_V2
Moderator:	HYDRA::MOORE

Created:	Sat Apr 26 1986
Last Modified:	Wed Feb 05 1992
Last Successful Update:	Fri Jun 06 1997
Number of topics:	5378
Total number of notes:	38326

2946.0. "MicroVAX 2000 memory on an A500?" by RLAV::LITTLE (Todd Little, NYA SWS, 323-4475) Fri Sep 22 1989 02:46

    Does anyone know where to get the pin definitions and signal
    definitions for the MicroVAX 2000 memory boards?  I'm interested in a
    little hardware hacking and suspect that those boards would make great
    outboard memory for the Amiga.  I have some of these boards (the 2 Meg
    variety) that are of absolutely no use to anyone.  They were taken out
    of systems that were upgraded to either 6 or 14 Mbytes.  I'm willing to
    part with one in exchange for the information necessary to design an
    adapter to allow the board to be connected to the Zorro II bus (or
    whatever the thing on the side of my 500 is).
    
    Any takers?
    
    -tl

T.R	Title	User	Personal Name	Date	Lines
2946.1	It's on MicroFiche	WJG::GUINEAU	Impossible Concentration	`Fri Sep 22 1989 11:55`	4
	Go to your local Reproduction Center (in DEC) and give them the part number of that board. They can pull and print the entire schematic set for you. John
2946.2	VAXstation 2000 memory usable?	WHAMMY::SPODARYK	Scaring the pedestrians...	`Fri Jun 22 1990 15:39`	16
	Would it be possible to use memory from a VAXstation 2000 in any of the commercial expanders? Has anyone built their own (not that I could)? The actual chips appear to be of the 256kbit type, but are a bit odd. They are small, and have pins on all 4 sides. The chip markings are: 8810 U22n o Japan 21 21414 22 I assume that they're at least 120ns. Any ideas? Steve
2946.3	Can it be done!	SNOFS1::ASHLEY		`Wed Sep 19 1990 07:18`	7
	Has anybody managed to create a board that will controll the memory of a microVAX yet?? If somebody has I would be interested in obtaining the circuit diagramme, as I have recently come into possesion of a 2 Mb memory board for the microVAX and would like to try and get it going on my A500. Any reply greatly appreciated. Mark.
2946.4		WELSWS::FINNIS		`Mon Oct 15 1990 20:23`	6
	I believe the answer to be no.... I'd sell it and buy a cup of coffee with the proceeds. .Pete. :-)