On Fri, 11 Nov 2011 22:42:56 +0100
Sytse van Slooten <sytsezelf at gmail.com> wrote:
[connect FPGA PDP-11 to Ethernet]
So there too is a bit of a challenge - which situation
to build the VHDL for?
ENC28J60 Stand-Alone Ethernet Controller with SPI Interface:
http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en022889
The ENC28J60 is often used to connect small 8 bit microcontrolers to
Ethernet. Given that e.g. a DELQA has a M68k as embedded controler, you
most likely need some sort of softcore inside the FPGA to properly
emulate a DELQA. This softcore could drive a ENC28J60.
There are other things that I would like to see build into the FPGA:
A TS11 tape drive controller emulation that exposes a formated Pertec
interface on the pins of the FPGA. It would be trivial to build a level
shifter to drive a real Pertec interfaced tape drive to the FPGA.
The same for RX02, RL02, ...
--
\end{Jochen}
\ref{http://www.unixag-kl.fh-kl.de/~jkunz/}