.\"	$OpenBSD: ser.4,v 1.4 2000/03/02 14:46:44 todd Exp $
.\" 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.
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.\" modification, are permitted provided that the following conditions
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.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
.\"	California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
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.\"     from: @(#)dca.4	5.2 (Berkeley) 3/27/91
.\"
.Dd August 30, 1994
.Dt SER 4 amiga
.Os
.Sh NAME
.Nm ser
.Nd
.Tn Amiga 8520
serial communications interface
.Sh SYNOPSIS
.Cd "ser0 at mainbus0"
.Sh DESCRIPTION
The
.Tn Amiga 8520
controls, among other things, a single port
.Tn EIA
.Tn RS-232C
.Pf ( Tn CCITT
.Tn V.28 )
communications interface with a single character buffer.
Such an interface is built-in to all Amiga machines.
.Pp
Input and output for each line may set to one of following baud rates;
50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600,
19200, 38400, 57600 or 76800.
.Sh FILES
.Bl -tag -width Pa
.It Pa /dev/tty00
.El
.Sh DIAGNOSTICS
.Bl -diag
.It ser0: silo overflow.
The single-character input
.Dq silo
has overflowed and incoming data has been lost.
.It ser0: %d ring 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 0.9a
.Sh BUGS
Data loss is possible on busy systems with baud rates greater than 300.