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2) Data output control
(
N
Stop
N
"I:ND
Command InstructIon
HTS,HXEN,TXEN)
_ _ 8251AC
Set counter (20Oms)
Output data to
8251AC
Set counter (400ms).
-73-
8251 AC
"L"-)o HTS
COUNT DOWN
N
ERRORIOI
-
M Z3500
The 8251 send data when
C'fS
goes low.
(
The 8251AC would not output, unleSS')
~
goes low. Therefore, the state of
~
will be checked when the buffer
becomes empty.
N
ERROR 101
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