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Amiga computer related discussion => Amiga Marketplace => Topic started by: murple on August 31, 2007, 02:42:27 AM

Title: Odd Zorro cards on ebay
Post by: murple on August 31, 2007, 02:42:27 AM

From the same guy. Odd cards that have some weird Motorola chips on board...

http://cgi.ebay.com/AMIGA-2000-REMOTE-DMA-OUTPUT-CONTRL-very-hard-to-find_W0QQitemZ260154261616QQihZ016QQcategoryZ4598QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

This one is labelled a test board.

http://cgi.ebay.com/AMIGA-2000-SERIAL-INTERFACE-rare-item-very-hard-to-find_W0QQitemZ260154260741QQihZ016QQcategoryZ4598QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I have no idea what they are, and google didnt turn up much.

Title: Re: Odd Zorro cards on ebay
Post by: Shamus_ on August 31, 2007, 03:06:37 AM

Hmm... they look like scsi cards. Could be wrong though.

Title: Re: Odd Zorro cards on ebay
Post by: Nostalgiac on August 31, 2007, 09:04:44 PM

first one has a
MC68450    Direct memory access controller - 4 channel
and 60 pin connectors are not scsi...

no further ideas :-/

or.. a very wild guess - perhaps these are one of those custom NASA card ? (really just guessing)

Tom

Title: Re: Odd Zorro cards on ebay
Post by: Shamus_ on August 31, 2007, 11:32:34 PM

Quote

and 60 pin connectors are not scsi...

They look a hell of alot like my Oktagon scsi card.


A 2 minute google found this:

http://www.connectworld.net/iec/Browse05/CCH60.html

Title: Re: Odd Zorro cards on ebay
Post by: murple on September 01, 2007, 12:15:04 AM

Ive seen a bunch of 60 pin connectors like that used for internal SCSI ribbon cables. I dont think these are SCSI cards though since the boards dont say SCSI and since there dont seem to be the sort of chips and external ports you usually see on SCSI cards. Also those are pretty beefy Motorola chips for a SCSI card.

Title: Re: Odd Zorro cards on ebay
Post by: Plaz on September 01, 2007, 01:15:09 AM

Several years ago there was a discussion about boards like this. I recall only that they were controllers for some non-Amiga external equipment.  But my recollecion of such an ancient thread is dim. Perhaps some one else will remember more.

Plaz

Title: Re: Odd Zorro cards on ebay
Post by: joekster on September 01, 2007, 07:28:14 AM

They kinda look like developer / reference boards to me...

Title: Re: Odd Zorro cards on ebay
Post by: Zac67 on September 01, 2007, 09:50:45 AM

The 68450 is a DMA controller, so the board most probably provides DMA access for external devices - fits 'remote DMA'. My guess it's been used in some high-bandwidth (in those days) telemetry or signal recording system.

@murple: Please shorten the URL by adding an alternative text - this thread is a pain to read.