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BUS DEFINITION
Back Side
No.
SYMBOL
55
CGND
56
to
UNUSED
67
68
MWRT
69
PS
70
PROT
71
RUN
72
PRDY
NAME
CHASSIS GROUND
MEMORY WRITE
PROTECT STATUS
PROTECT
RUN
READY
Mother Board
User Guide
F U N C T I O N
From the Front Panel
indicates that the
current data on the
Data Out Bus is to
be written into the
memory location cur
rently on the ad
dress bus
Reserved to indicate
the status of the
memory protect flip-
flop on the memory
board currently ad
dressed
Reserved for input
to the memory protect
flip-flop on the
memory board current
ly addressed
Indicates that the
RUN/STOP flip-flop
is set to run on the
front panel
Processor command/
control input that
controls the run
state of the pro
cessor; if the line
is pulled low the
processor will enter
a wait state until
the line is released
2
15
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