Zorro III in Zorro II: Would it work?

Zorro III in Zorro II: Would it work?

Post by William J. Murp » Fri, 04 May 1990 00:24:58



Andy Hartman's search for a RAM expansion board made me think of the following
question.

Since a Zorro III board is pin compatible with Zorro II, would/could a Zorro III
board be designed to work under both Z3 and Z2 specifications?  

Stupid question? Maybe, but wouldn't it be nice to use the same board in either
a 2000 or a 3000?  We already know that a Z2 will work in Z3 so long as it is
designed correctly.  Why not the reverse?
--
Bill Murphy                                  | Zaphod, Vell he's just zis

Amiga, it's not a religion, it's a lifestyle | Honk if you're Elvis!

 
 
 

Zorro III in Zorro II: Would it work?

Post by Dave Hayn » Sat, 05 May 1990 01:59:01



Quote:>Since a Zorro III board is pin compatible with Zorro II, would/could a Zorro III
>board be designed to work under both Z3 and Z2 specifications?  

It is additional work and logic, but it can be done.  In some cases, it may
make sense, in other cases, it may not ("Whaddya mean you put that 32 megabyte
memory board into your 2000!").  

In any case, Zorro III boards are required to act intelligently in a Zorro II
backplane.  If they can't act as a Zorro II board, they much magically disappear
so as to allow any additional Zorro II boards to be correctly configured.

Quote:>Bill Murphy                                  | Zaphod, Vell he's just zis

--
Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
        "I have been given the freedom to do as I see fit" -REM

 
 
 

1. Zorro II cards in Zorro III slots?

        Hmmm, I did consult the various FAQ I found about the Amiga,
        and did not found an answer to this question:

        Can I use my old Zorro-II cards (from my A2000) in my A4000
        Zorro III slots without risk ?

        I mean, I don't care to find out that the card does not work
        in the A4000, but I would not want to burn any chip...  I'd
        like to know about any side effects also.

        My cards are: GVP SCSI adaptor, Serie-II
                      GVP IO Extender card.

        Any help will be appreciate.   (Hmmm, if GVP have an Internet
        address, I could also ask them!   Any body knows about such an
        address ? )

        Thanx


--
 Eric Labbe                       SysOp of Amiga-Zone (514) 482-1339

 Computer-Analyst (B.Sc)          Employer: CAE Electronics Ltd.
 Amiga4000/030/10/120/3.0

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