#: 5241 S15/Hot Topics
    15-Jul-90  21:23:58
Sb: #5237-32 bit bus?
Fm: Frank Hogg 70310,317
To: Mark S 76004,373

Yes I see your point, but as I understand it the MM1's memory is restricted to
the 2nd board so memory to memory DMA would not work. I don't know if their bus
would support slaved CPUs etc. But if the memory could not be on the bus none
of your suggestions would work.. would they??

Your point of overkill and costly is why the K-Bus is only 16 bits. It was
designed to be low cost and match the 16 bit CPUs. We can and do run a '30 on
the bus with good results and speed. Our paper calcs show we are only losing 5%
over what a full 32 bit bus would give us. If these run true then 5% is a small
gain for the added cost of the extra bits. We are also planning a CPU card with
on-board memory that would overcome most of that loss. I guess it's a
compromise (sp?) between cost and practical operations.

Frank