Sharp MZ-3500 Personal Computer User Manual


 
MZ3500
2)
Data
output control
SKNU
Command instruction
(KTS,RXEN,TXEN)
»-
8251
AC
8251
AC
"L"->KTS
Set
counter (200ms)
Stop
Output data
to
8251AC
ERROR
101
The
8251 send
data
when
CTS
goes
low.
The
8251
AC
would
not
output,
unlessv
CTS
goes
low. Therefore,
the
state
of \
CTS
will
be
checked when
the
buffer
I
.becomes
empty.
/
ERROR
101
-
73
-