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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
commit253e67c8b3a72b3a4757fdbc5845297628db0a4a (patch)
treeadf53b66087aa30dfbf8bf391a1dadb044c3bf4d /static/netbsd/man4/mfcs.4
parenta9157ce950dfe2fc30795d43b9d79b9d1bffc48b (diff)
docs: Added All NetBSD Manuals
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+.\" Copyright (c) 1990, 1991 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: @(#)dca.4 5.2 (Berkeley) 3/27/91
+.\" $NetBSD: mfcs.4,v 1.8 2017/07/03 21:30:58 wiz Exp $
+.\"
+.Dd July 23, 1995
+.Dt MFCS 4 amiga
+.Os
+.Sh NAME
+.Nm mfcs
+.Nd
+.Tn BSC/AlfaData MultiFaceCard II/III
+serial communications interface
+.Sh SYNOPSIS
+.Cd "mfc0 at mainbus0"
+.Cd "mfcs0 at mfc0 unit 0"
+.Cd "mfcs1 at mfc0 unit 1"
+.Sh DESCRIPTION
+The
+.Tn MultiFaceCard II/III
+controls, among other things, a dual port
+.Tn EIA
+.Tn RS-232C
+.Pf ( Tn CCITT
+.Tn V.28 )
+communications interface with a multiple character buffer.
+.Pp
+Input and output for each MultiFaceCard III line may set to a maximum baud
+rates of 1152000. Formula for baud rate: Baud = 230400 / N with 1 < N < 65536.
+.Pp
+Input and output for each MultiFaceCard II line may set to a maximum baud
+rates of 57600. Formula for baud rate: Baud = 115200 / N with 1 < N < 65536.
+.Sh FILES
+.Bl -tag -width Pa
+.It Pa /dev/ttyA?
+.El
+.Sh DIAGNOSTICS
+.Bl -diag
+.It mfcs0: fifo overflow.
+The four-character input
+.Dq fifo
+has overflowed and incoming data has been lost.
+.It mfcs0: %d buffer overflows.
+The software based input ring buffer
+has overflowed %d times and incoming data has been lost.
+.El
+.Sh SEE ALSO
+.Xr tty 4
+.Sh HISTORY
+The
+.Tn Amiga
+.Nm
+device first appeared in
+.Nx 1.1
+.Sh BUGS
+The MultiFaceCard II/III serial ports use the level 6 interrupt and may
+experience fifo overflows if the LEV6_DEFER option is used.