11 May
2015
11 May
'15
8:36 a.m.
On Sun, May 10, 2015 at 2:42 PM, Pontus <pontus at update.uu.se> wrote:
Sounds like a very nice PDP-12 setup. Does the Omnibus
expansion allow for
Omnibus memory as well?
Pretty sure that only IOT's type operations are translated by the posibus
to omnibus converter. I believe this includes single cycle data break
devices. And while Data break allows the I/O devices to talk to the CPU
memory system it is quite different from allowing the CPU to talk to
Omnibus memory.
I have read that there was a device that allowed an 8/I to be interfaced to
Omnibus memory and some machines were sold this way but I have never seen
one.
--
Doug Ingraham
PDP-8 SN 1175