Date   : Tue, 26 Jul 2005 17:16:34 +0100
From   : Rob <robert@...>
Subject: Re: Econet-Ethernet bridge

At 16:46 26/07/2005, Mark Usher wrote:

>Phil's design already uses the Master econet module, at least as far as my
>limited understanding of the design goes,

Is it possible to implement a 68x54 in a PIC, FPGA or some other more 
modern device, rather than building the board to rely on old 
hardware?  Does anybody even make the 68x54 any more?  (Personally, I've 
not got any spare master modules, although I've at least a couple of loose 
68B54's)

Actually, having thrashed through the Motorola datasheets in order to 
emulate the dratted chip in software, it probably wouldn't be an easy task 
to do an exact emulation in hardware.  It would be easier instead to just 
cobble up something that would talk the same protocols on the line, as we 
don't have to keep the CPU side the same if new drivers are being written.

Rob