MASSBUS disk emulator (Was: Unibus controller for MFM disks)
RichA at LivingComputerMuseum.org
Wed Oct 19 13:22:00 CDT 2016
From: Noel Chiappa
Sent: Wednesday, October 19, 2016 8:49 AM
>> From: Rich Alderson
>> Yes, the d/r card is strictly level conversion, and the microcode in
>> the Xilinx does all the Massbus protocol.
> So if you don't mind continuing to indulge my curiousity (thanks for all
> the indulgence so far :-), is the D/R card a daughtercard that mounts on
> the Mesa (my guess)?
Actually, due to the board real estate required for all those transceiver
chips, we couldn't make it all fit on a card that fit inside a PC. There
is a separate box with the Massbus connector on one side and ribbon cables
going to the server on the other.
Vintage Computing Sr. Systems Engineer
Living Computer Museum
2245 1st Avenue S
Seattle, WA 98134
mailto:RichA at LivingComputerMuseum.org
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