1.\" Copyright (c) 1990, 1991 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the Systems Programming Group of the University of Utah Computer 6.\" Science Department. 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. Neither the name of the University nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91 32.\" $NetBSD: mfcs.4,v 1.8 2017/07/03 21:30:58 wiz Exp $ 33.\" 34.Dd July 23, 1995 35.Dt MFCS 4 amiga 36.Os 37.Sh NAME 38.Nm mfcs 39.Nd 40.Tn BSC/AlfaData MultiFaceCard II/III 41serial communications interface 42.Sh SYNOPSIS 43.Cd "mfc0 at mainbus0" 44.Cd "mfcs0 at mfc0 unit 0" 45.Cd "mfcs1 at mfc0 unit 1" 46.Sh DESCRIPTION 47The 48.Tn MultiFaceCard II/III 49controls, among other things, a dual port 50.Tn EIA 51.Tn RS-232C 52.Pf ( Tn CCITT 53.Tn V.28 ) 54communications interface with a multiple character buffer. 55.Pp 56Input and output for each MultiFaceCard III line may set to a maximum baud 57rates of 1152000. Formula for baud rate: Baud = 230400 / N with 1 < N < 65536. 58.Pp 59Input and output for each MultiFaceCard II line may set to a maximum baud 60rates of 57600. Formula for baud rate: Baud = 115200 / N with 1 < N < 65536. 61.Sh FILES 62.Bl -tag -width Pa 63.It Pa /dev/ttyA? 64.El 65.Sh DIAGNOSTICS 66.Bl -diag 67.It mfcs0: fifo overflow. 68The four-character input 69.Dq fifo 70has overflowed and incoming data has been lost. 71.It mfcs0: %d buffer overflows. 72The software based input ring buffer 73has overflowed %d times and incoming data has been lost. 74.El 75.Sh SEE ALSO 76.Xr tty 4 77.Sh HISTORY 78The 79.Tn Amiga 80.Nm 81device first appeared in 82.Nx 1.1 83.Sh BUGS 84The MultiFaceCard II/III serial ports use the level 6 interrupt and may 85experience fifo overflows if the LEV6_DEFER option is used. 86