28 Feb
1999
28 Feb
'99
6:53 a.m.
"emanuel stiebler" <emu(a)ecubics.com> wrote":
If i read that right, there are 10 switches on this
board. Switch 7 & 8
are defined as:
7 8
off off Arbiter
on off auxiliary 1
off on auxiliary 2
on on auxiliary 3
Switch 7 is connected to pin 4 of the J2 connector (20 pin connector)
Switch 8 is connected to pin 5 of the J2 connector.
Thanks... I'll have to recheck the manual, I guess I missed it. Now
I have to figure out what 'off' means... shorting pin 4 to what other
pin (shorted low or high).
I'm thinking of trying a KA630 as a coprocessor in a qbus pdp-11
system.
The KA650 manual mentions using the same board, but it says that only
the off-off configuration is supported. I wonder if the KA650 can
be a co-processor as well... But then, the KA650 doesn't have on-board
memory.
Megan Gentry
Former RT-11 Developer
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