Hi,
I search with google, ant this is the answer:
From the A4000 Hardware Guide, Jumpers section:
"Haynie Kludge" Jumper (courtesy of Dave Haynie)
"That jumper enables the "early sizing" mode on the Zorro III bus. One
of the complaints about Zorro III is that the size of a transfer isn't
known until the data phase of the cycle. So in the Zorro III addendum I
added an optional mode that allows data size information to be latched in
the address phase. Just in case any existing boards have a problem with
this (if they go by the spec, they don't, but who really knows what
they're doing), it's shipped disabled. The idea was to test this out in
the A4000T, bless it as standard for future Zorro III controllers as long
as it did what designers wanted."
Regards
Alessandro
