27 Oct
2021
27 Oct
'21
8:25 a.m.
It may have been what became the KMC11 cpu, the interesting thing from
the notes was that DEC developed it for block mode protocols (what a
typical race track betting machine would use) but then tried to stuff in
Async modes as well. The change (approved by DEC management because they
thought the resulting product would sell better) broke the board.
It's possible that DEC cut it down from a 64 to 48 line solution by
removing 2 DZ11's... The KMC11 could handle block mode protocols, correct?
C
On 10/26/2021 7:37 PM, Bob Smith via cctalk wrote:
I left in 79, I designed the AUtodin II mode 1A//Mode
VI line usints.
Those were synchronous comms interfaces for Bisync.ADCCP/ etc
connections while CSS did the Mode 1 I think it was Asynch interface
line unit.
I suspect DMX is the commercial version of that Autodin II Asynch
design, using the KMX/COMMIOP cpu and a dedicated unibus system unit
set to support the lineunits
BUT I could be wrong maybe DMX was something completely different but
it seems to tickle my memory.
bb