.\"-
.\" Copyright (c) 2001 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Paul Kranenburg.
.\"
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.\" modification, are permitted provided that the following conditions
.\" are met:
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.\"    notice, this list of conditions and the following disclaimer.
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.\"    notice, this list of conditions and the following disclaimer in the
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\"	from: OpenBSD: sbus.4,v 1.27 2005/03/05 01:44:48 miod Exp
.\"	from: NetBSD: sbus.4,v 1.5 2002/01/21 17:54:10 wiz Exp
.\" $FreeBSD: head/share/man/man4/man4.sparc64/sbus.4 267938 2014-06-26 21:46:14Z bapt $
.\"
.Dd September 1, 2006
.Dt SBUS 4 sparc64
.Os
.Sh NAME
.Nm sbus
.Nd SBus controller and bus
.Sh SYNOPSIS
.Cd "device sbus"
.Sh DESCRIPTION
The
.Nm
driver provides support for the SBus controllers and busses found in older
.Tn UltraSPARC
workstations and small to medium server class systems.
The SBus is an I/O interconnect bus supporting both on-board peripherals and
extension boards.
The SBus specifications define the bus protocol as well as the electrical and
mechanical properties of the extension slots.
.Sh SEE ALSO
.Xr auxio 4 ,
.Xr eeprom 4 ,
.Xr esp 4 ,
.Xr hme 4 ,
.Xr isp 4 ,
.Xr le 4 ,
.Xr scc 4 ,
.Xr snd_audiocs 4 ,
.Xr uart 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 1.3 .
The first
.Fx
version to include it was
.Fx 5.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Paul Kranenburg
and ported to
.Fx
by
.An Thomas Moestl Aq Mt tmm@FreeBSD.org .