ZiLOG System 8000 Hardware Reference Manual page 347

HRM
Zilog HRM
Errors which occur during polled-mode oharacter, or modem
signal testing, are usually caused by broken wires or loose
pins in the cable, or
by
a connector which is either loose
or connected to the wrong I/O port.
Th e m
0
s t a 11- inc 1 u s i vet est
i.3
the
L1 t
e;, ...
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t·-
>1 ,)
L~
:,1)
j~::l
C
Y1
~
trol test. This test is recommended for extendej
t33ti~3,
since it tests for the greatest number of p03sib1e errors.
A-116
Zilog
A-116