DCA

Section: Devices and Network Interfaces (4)
Updated: hp300
Index Return to Main Contents

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

This document was created by man2html, using the manual pages.
Time: 06:48:19 GMT, May 19, 2025