18 May
2000
18 May
'00
11:36 p.m.
I recently was given some Intel iSBC-012CX memory cards. These are 512K
ECC DRAM cards that support both Multibus and an auxilliary high speed
memory bus on the P2 connector (iLBX?). There was also a version that
omitted some components and didn't support the aux. bus; I think that
was the iSBC-012C. There were also partially populated models with 128K
and 256K capacity; I think those were designated iSBC-028C[X] and
iSBC-056C[X].
Anyhow, I'm looking for a manual for these boards, or at least information
on jumper settings.
Multibus originally only supported a 1M address space, so two of these would
fill it up. Later A20-A23 address lines were added, but they were put on
the P2 connector.
Thanks!
Eric