Christian Corti schrieb:
According to the "microcomputer processor
handbook" (edition 1979-80)
the backplane signal names for BC1 to BH1 are called SSPARE4 to SSPARE8
(special spare) and are *not* bussed.
Yes but that apparently is only true for the very first machines using
QBUS i.e. with the LSI-11 CPU. The LSI-11 manual contains exactly the
same information.
The KD11-HA signal names on these
pins are:
BC1 SCLK3H
BD1 SWMIB18H
BE1 SWMIB19H
BF1 SWMIB20H
BH1 SWMIB21H
Any idea how I can find out what those signals actually do?
Sebastian