1.\" $OpenBSD: mcbus.4,v 1.5 2015/11/21 08:04:20 jmc Exp $ 2.\" $NetBSD: mcbus.4,v 1.1 2001/09/21 09:11:44 gmcgarry Exp $ 3.\" 4.\" Copyright (c) 2001 The NetBSD Foundation, Inc. 5.\" All rights reserved. 6.\" 7.\" This code is derived from software contributed to The NetBSD Foundation 8.\" by Gregory McGarry. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29.\" POSSIBILITY OF SUCH DAMAGE. 30.\" 31.Dd $Mdocdate: November 21 2015 $ 32.Dt MCBUS 4 alpha 33.Os 34.Sh NAME 35.Nm mcbus , 36.Nm mcmem 37.Nd MCBUS system bus 38.Sh SYNOPSIS 39.Cd "mcbus* at mainbus0" 40.Cd "mcmem* at mcbus? mid ?" 41.Sh DESCRIPTION 42The 43.Nm 44driver provides support for the MCBUS system bus found on AlphaServer 4100 45and 1200 systems. 46.Pp 47The following devices are supported by the 48.Nm 49driver: 50.Pp 51.Bl -tag -width mcclock -offset indent -compact 52.It mcmem 53memory modules attached to the MCBUS main system bus. 54.It mcpcia 55MCPCIA MCBUS-to-PCI bus adapter 56.El 57.Sh SEE ALSO 58.Xr intro 4 , 59.Xr mainbus 4 , 60.Xr mcpcia 4 61.Sh BUGS 62Only one MCBUS bus can exist within the system. 63