[SunRescue] 4/6xx capabilities?

[Dave McGuire]

On Wed, 12 Jan 2000, Bjrn Ramqvist wrote:
>That sounds almost like an idea I have together with another friend; to
>put as many VME-CPU's as possible into a x90 cardcage as possible, by
>isolating the VME-bus. Practicly it should work, but I have no idea what
>so ever how to make the 4/300 (for example) to simply ignore any
>VME-traffic. Even if I have to cut a few traces, so be it, but I have no
>idea what traces to cut...

  It can be done with 4/600 boards with new enough ROMs.  There's a VME
loopback parameter that you can set in the OBP...I don't recall the variable
name offhand but it's something like "vme-loopback" or some such.

                 -Dave McGuire