1.\" $NetBSD: zsc.4,v 1.4 2002/01/15 01:48:32 wiz 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. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the University of 20.\" California, Berkeley and its contributors. 21.\" 4. Neither the name of the University nor the names of its contributors 22.\" may be used to endorse or promote products derived from this software 23.\" without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35.\" SUCH DAMAGE. 36.\" 37.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91 38.\" 39.Dd August 6, 1993 40.Dt ZSC 4 mac68k 41.Os 42.Sh NAME 43.Nm zsc 44.Nd serial communications interface 45.Sh SYNOPSIS 46.Cd "zsc0 at obio?" 47.Sh DESCRIPTION 48The 49.Nm 50driver provides support for Z8530- and Z85230-compatible 51.Tn EIA 52.Tn RS-232C 53.Pf ( Tn CCITT 54.Tn V.28 ) 55communications interfaces. The Z8530 has a 3 character buffer, 56and the Z85230 has a 8 character buffer. However, due to limitations in 57the design of the Z85230, the driver is unable to distinguish it from 58the Z8530 and will not enable any enhanced features of the controller. 59.Pp 60Input and output for each line may set to one of following baud rates; 6150, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600, 6219200, 38400, 57600, 115200, 230400, or any other baud rate which is a factor 63of 115200. 64.Sh FILES 65.Bl -tag -width Pa 66.It Pa /dev/tty00 67.It Pa /dev/tty01 68.El 69.Sh SEE ALSO 70.Xr tty 4 , 71.Xr zstty 4 72.Sh HISTORY 73The 74.Nm 75driver was originally derived from the sun3 76.Ic zs 77driver and is 78.Ud 79.Sh BUGS 80Data loss is possible when using high speeds, particularly on older (68020 81or 68030) Macintosh models and on busy systems. 82