DCA
Section: Devices and Network Interfaces (4)
Updated: hp300
Index
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BSD mandoc
NAME
dca
- HP 98644A
communications interface
SYNOPSIS
device dca0 at scode9 flags 0x1
DESCRIPTION
The
98644A
is a single port
EIA
RS-232C
( CCITT
V.28
communications interface with a single character buffer.
Such an interface is built-in to all series 300 machines.
Input and output for each line may set to one of following baud rates;
50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600 or
19200.
An optional argument
flags
may be set to 1 if the line should be treated as hard-wired
with carrier always present or 0 if modem control is desired.
FILES
- /dev/tty0
-
DIAGNOSTICS
- dca%d: silo overflow.
-
The single-character input
``silo''
has overflowed and incoming data has been lost.
SEE ALSO
tty(4)
HISTORY
The
driver
Ud
BUGS
Data loss is possible on busy systems with baud rates greater than 300.
The
dca
has never been tested with modem control enabled or on anything but the
built-in interface.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- FILES
-
- DIAGNOSTICS
-
- SEE ALSO
-
- HISTORY
-
- BUGS
-
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