78 lines
2.9 KiB
Groff
78 lines
2.9 KiB
Groff
.\" $NetBSD: zsc.4,v 1.5 2003/08/07 10:31:07 agc Exp $
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.\"
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.\" Copyright (c) 1990, 1991 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Systems Programming Group of the University of Utah Computer
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.\" Science Department.
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91
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.\"
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.Dd August 6, 1993
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.Dt ZSC 4 mac68k
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.Os
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.Sh NAME
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.Nm zsc
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.Nd serial communications interface
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.Sh SYNOPSIS
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.Cd "zsc0 at obio?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for Z8530- and Z85230-compatible
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.Tn EIA
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.Tn RS-232C
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.Pf ( Tn CCITT
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.Tn V.28 )
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communications interfaces. The Z8530 has a 3 character buffer,
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and the Z85230 has a 8 character buffer. However, due to limitations in
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the design of the Z85230, the driver is unable to distinguish it from
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the Z8530 and will not enable any enhanced features of the controller.
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.Pp
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Input and output for each line may set to one of following baud rates;
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50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600,
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19200, 38400, 57600, 115200, 230400, or any other baud rate which is a factor
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of 115200.
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.Sh FILES
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.Bl -tag -width Pa
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.It Pa /dev/tty00
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.It Pa /dev/tty01
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.El
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.Sh SEE ALSO
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.Xr tty 4 ,
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.Xr zstty 4
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.Sh HISTORY
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The
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.Nm
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driver was originally derived from the sun3
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.Ic zs
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driver and is
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.Ud
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.Sh BUGS
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Data loss is possible when using high speeds, particularly on older (68020
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or 68030) Macintosh models and on busy systems.
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