.\" $NetBSD: mainbus.4,v 1.4 2017/02/17 22:24:47 christos Exp $
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.Dd February 17, 2017
.Dt MAINBUS 4 mvme68k
.Os
.Sh NAME
.Nm mainbus
.Nd MVME68K main processor bus device
.Sh SYNOPSIS
.Cd "mainbus0 at root"
.Sh DESCRIPTION
The
.Nm
interface serves as an abstraction used by the autoconfiguration
system to help find and attach busses
.Pq e.g. the Tn VME bus
or devices
.Pq e.g. the PCC chip
connected to Motorola
.Tn MVME single board computers'
main processor bus.
.Sh DIAGNOSTICS
.Bl -diag -compact
.It mainbus0 (root).
This is the normal autoconfiguration message indicating that the
main processor bus has been found.
.El
.Sh SEE ALSO
.Xr mvme68k/autoconf 4 ,
.Xr mvme68k/pcc 4 ,
.Xr mvme68k/pcctwo 4