4 Apr
2006
4 Apr
'06
2:47 a.m.
On Tue, 4 Apr 2006, [ISO-8859-15] Sebastian Br?ckner wrote:
KD11-HA M7270 LSI-11/2 CPU
(16-bit addressing only, and use of BC1,BD1,
BE1,BF1 for purposes other than BDAL18-21)
What did the M7270 use these pins for? I didn't find any manuals or
schematics for the this CPU yet, only for the LSI-11. Could someone point me
into the right direction?
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. The KD11-HA signal names on these
pins are:
BC1 SCLK3H
BD1 SWMIB18H
BE1 SWMIB19H
BF1 SWMIB20H
BH1 SWMIB21H
Christian