1.\" $NetBSD: zsc.4,v 1.5 2003/08/07 10:31:07 agc Exp $ 2.\" 3.\" Copyright (c) 1990, 1991 The Regents of the University of California. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Systems Programming Group of the University of Utah Computer 8.\" Science Department. 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91 34.\" 35.Dd August 6, 1993 36.Dt ZSC 4 mac68k 37.Os 38.Sh NAME 39.Nm zsc 40.Nd serial communications interface 41.Sh SYNOPSIS 42.Cd "zsc0 at obio?" 43.Sh DESCRIPTION 44The 45.Nm 46driver provides support for Z8530- and Z85230-compatible 47.Tn EIA 48.Tn RS-232C 49.Pf ( Tn CCITT 50.Tn V.28 ) 51communications interfaces. The Z8530 has a 3 character buffer, 52and the Z85230 has a 8 character buffer. However, due to limitations in 53the design of the Z85230, the driver is unable to distinguish it from 54the Z8530 and will not enable any enhanced features of the controller. 55.Pp 56Input and output for each line may set to one of following baud rates; 5750, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600, 5819200, 38400, 57600, 115200, 230400, or any other baud rate which is a factor 59of 115200. 60.Sh FILES 61.Bl -tag -width Pa 62.It Pa /dev/tty00 63.It Pa /dev/tty01 64.El 65.Sh SEE ALSO 66.Xr tty 4 , 67.Xr zstty 4 68.Sh HISTORY 69The 70.Nm 71driver was originally derived from the sun3 72.Ic zs 73driver and is 74.Ud 75.Sh BUGS 76Data loss is possible when using high speeds, particularly on older (68020 77or 68030) Macintosh models and on busy systems. 78