diff options
| author | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 19:55:15 -0400 |
|---|---|---|
| committer | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 19:55:15 -0400 |
| commit | 253e67c8b3a72b3a4757fdbc5845297628db0a4a (patch) | |
| tree | adf53b66087aa30dfbf8bf391a1dadb044c3bf4d /static/netbsd/man4/dcl.4 | |
| parent | a9157ce950dfe2fc30795d43b9d79b9d1bffc48b (diff) | |
docs: Added All NetBSD Manuals
Diffstat (limited to 'static/netbsd/man4/dcl.4')
| -rw-r--r-- | static/netbsd/man4/dcl.4 | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/static/netbsd/man4/dcl.4 b/static/netbsd/man4/dcl.4 new file mode 100644 index 00000000..f997b64a --- /dev/null +++ b/static/netbsd/man4/dcl.4 @@ -0,0 +1,130 @@ +.\" $NetBSD: dcl.4,v 1.13 2017/07/03 21:30:59 wiz Exp $ +.\" +.\" Copyright (c) 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Systems Programming Group of the University of Utah Computer +.\" Science Department. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" from: @(#)dcl.4 8.1 (Berkeley) 6/9/93 +.\" +.Dd November 15, 2003 +.Dt DCL 4 hp300 +.Os +.Sh NAME +.Nm dcl +.Nd +.Tn HP +98628A serial communications link +.Sh SYNOPSIS +.Cd "dcl0 at dio? scode ? flags 0x1" +.Sh DESCRIPTION +The 98628A is a buffered +.Tn EIA +.Tn RS-232C +.Pf ( Tn CCITT +.Tn V.28 ) +communications interface. +It has one port with full modem control. +.Pp +Input and output for each line may set to one of following baud rates; +0, 50, 75, 110, 134.5, 150, 200, 300, 600, 1200, 1800, 2400, 4800, +9600, 19200. +.Pp +An optional argument +.Ar flags +may be set to 1 if the line should be treated as hard-wired with +carrier always present, or to 0 if modem control is desired. +.Pp +Use +.Tn HP +cable "98626 & 98628 opts.002, +.Tn RS232-C +.Tn DCE CABLE , +5061-4216" to attach non-modem devices. +Use +.Tn HP +cable "98626 & 98628 opts.001, +.Tn RS232-C +.Tn DTE CABLE , +5061-4215" to attach modems. +.Pp +The 98628A has a 256 byte input silo and a 256 output silo. Input interrupts +happen on a per character basis. +.Pp +The high water and low water marks in the kernel tty routines are completely +inappropriate for a device like this with a large input buffer. Don't use +tandem mode if possible. A fast system can handle input at 19.2K baud without +receive overflow. +.Pp +For output to devices that make heavy use of +.Tn XON/XOFF +a write size of less +than 256 will improve performance marginally. +.Sh FILES +.Bl -tag -width /dev/ttyl[0-9] -compact +.It Pa /dev/ttyl[0-9] +.El +.Sh DIAGNOSTICS +.Bl -diag +.It dcl%d: error 0x%x RESET CARD. +Where the errors are encoded: +.Bd -unfilled -offset indent +0x06 card failure +0x0d uart receive overflow +0x0e receive overflow +0x0f missing external clock +0x10 cts false too long +0x11 lost carrier +0x12 activity timeout +0x13 connection not established +0x19 illegal databits/parity +0x1a register address out of range +0x1b register value out of range +0x-- unknown error +.Ed +.El +.Sh SEE ALSO +.Xr tty 4 +.Sh BUGS +The +.Nm +device is not actually supported in +.Nx . +This man page is only for information purposes in case someone wishes +to port the driver from 4.3BSD. +.Pp +Breaks received at a faster rate than 1 break every second will be +recognized as a single break. +.Pp +Console use is not supported. +.Pp +The +.Tn RS-422/423/499 , +.Tn MTS-DSN/DL +modes of the card are not supported. |
