1*62970Sbostic.\" Copyright (c) 1990, 1991, 1993 2*62970Sbostic.\" The Regents of the University of California. All rights reserved. 344672Sbostic.\" 444672Sbostic.\" This code is derived from software contributed to Berkeley by 544672Sbostic.\" the Systems Programming Group of the University of Utah Computer 644672Sbostic.\" Science Department. 762969Sbostic.\" 844672Sbostic.\" %sccs.include.redist.man% 944672Sbostic.\" 10*62970Sbostic.\" @(#)dca.4 8.1 (Berkeley) 06/09/93 1144672Sbostic.\" 1247672Scael.Dd 1347672Scael.Dt DCA 4 hp300 1447672Scael.Os 1547672Scael.Sh NAME 1647672Scael.Nm dca 1747672Scael.Nd 1847672Scael.Tn HP 98644A 1947672Scaelcommunications interface 2047672Scael.Sh SYNOPSIS 2147672Scael.Cd "device dca0 at scode9 flags 0x1" 2247672Scael.Sh DESCRIPTION 2347672ScaelThe 2447672Scael.Tn 98644A 2547672Scaelis a single port 2647672Scael.Tn EIA 2747672Scael.Tn RS-232C 2847672Scael.Pf ( Tn CCITT 2947672Scael.Tn V.28 ) 3044672Sbosticcommunications interface with a single character buffer. 3144672SbosticSuch an interface is built-in to all series 300 machines. 3247672Scael.Pp 3344672SbosticInput and output for each line may set to one of following baud rates; 3447672Scael50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600 or 3547672Scael19200. 3647672Scael.Pp 3747672ScaelAn optional argument 3847672Scael.Ar flags 3947672Scaelmay be set to 1 if the line should be treated as hard-wired 4044672Sbosticwith carrier always present or 0 if modem control is desired. 4147672Scael.Sh FILES 4247672Scael.Bl -tag -width Pa 4347672Scael.It Pa /dev/tty0 4447672Scael.El 4547672Scael.Sh DIAGNOSTICS 4647672Scael.Bl -diag 4747672Scael.It dca%d: silo overflow. 4847672ScaelThe single-character input 4947672Scael.Dq silo 5044672Sbostichas overflowed and incoming data has been lost. 5147672Scael.El 5247672Scael.Sh SEE ALSO 5347672Scael.Xr tty 4 5447672Scael.Sh BUGS 5544672SbosticData loss is possible on busy systems with baud rates greater than 300. 5644672SbosticThe 5747672Scael.Nm dca 5844672Sbostichas never been tested with modem control enabled or on anything but the 5944672Sbosticbuilt-in interface. 60