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Data Bit I
Data Bit 8
Data Strobe
The Busy signal is st to 1 ech time an FCB data byte is received
Note:
during a sequence between the start and stop codes.
5.2.2
Physical
The
physical
specifications
electrical
specifications, interface
assignment
specifications.
(1)
Electrical
Signal levels must be within the following ranges:
Low 0.0 to +0.4 v
High +2.4 to +5.5 V
Note:
The signal level above are at the interface connector.
Incorrect signals may be issued at power-on and power-off.
The interface signal driver and receiver must be the same as those shown
in Figure 5.8.
5 - 8
Start code
Figure 5.7 FCB data receive timing chart
specifications
of
of
specifications
VFU data
I
I
interface
signals
Centronics-interface
cable
specifications,
Stop code
signals
consist
and
connector
of
pin
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