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.\"     from: @(#)intro.4	5.2 (Berkeley) 3/27/91
.\"
.Dd February 17, 2017
.Dt INTRO 4 mvme68k
.Os
.Sh NAME
.Nm intro
.Nd introduction to mvme68k special files and hardware support
.Sh DESCRIPTION
This section describes the special files, related driver functions,
and networking support
available in the system.
In this part of the manual, the
.Tn SYNOPSIS
section of
each configurable device gives a sample specification
for use in constructing a system description for the
.Xr config 1
program.
The
.Tn DIAGNOSTICS
section lists messages which may appear on the console
and/or in the system error log
.Pa /var/log/messages
due to errors in device operation;
see
.Xr syslogd 8
for more information.
.Pp
This section contains both devices
which may be configured into the system
and network related information.
The networking support is introduced in
.Xr netintro 4 .
.Sh MVME68K DEVICE SUPPORT
This section describes the hardware supported on the
.Tn Motorola
MVME68K series of single board computers .
Software support for these devices comes in two forms.  A hardware
device may be supported with a character or block
.Em device driver ,
or it may be used within the networking subsystem and have a
.Em network interface driver .
Block and character devices are accessed through files in the file
system of a special type; see
.Xr mknod 8 .
Network interfaces are indirectly accessed through the interprocess
communication facilities provided by the system; see
.Xr socket 2 .
.Pp
A hardware device is identified to the system at configuration time
and the appropriate device or network interface driver is then compiled
into the system.  When the resultant system is booted, the
autoconfiguration facilities in the system probe for the device
and, if found, enable the software support for it.
If a device does not respond at autoconfiguration
time it is not accessible at any time afterwards.
To enable a device which did not autoconfigure,
the system will have to be rebooted.
.Pp
The autoconfiguration system is described in
.Xr mvme68k/autoconf 4 .
A list of the supported devices is given below.
.Sh LIST OF DEVICES
The devices listed below are supported in this incarnation of
the system.
Devices are indicated by their functional interface.
Not all supported devices are listed.
.Bl -tag -width "xxxxxx" -compact -offset indent
.It Em clmpcc
Cirrus Logic CD2401 four channel Communications controller
.It Em clock
Hardware counter/timer clock driver
.It Em ie
.Tn Intel
82596-based Ethernet interface
.It Em kmem
kernel virtual memory
.It Em le
.Tn AMD
Lance-based Ethernet interface
.It Em lpt
Onboard parallel printer interface
.It Em mem
physical memory
.It Em mcchip
MVME162 and MVME172 MCChip (similar to PCCchip2)
.It Em ncrsc
.Tn NCR
53c710 SCSI I/O Processor
.It Em pcc
MVME147 PCC Chip
.It Em pcctwo
MVME167 and MVME177 PCCchip2
.It Em vmepcc
MVME147 VMEbus interface chip
.It Em vmetwo
MVME1[67]x Enhanced VMEbus interface chip
.It Em wdsc
WD33c93 SCSI Bus Interface Controller
.It Em zsc
.Tn Zilog
Z8530 Dual-port Serial Interface on MVME147 and MVME162
.El
.Sh SEE ALSO
.Xr config 1 ,
.Xr mvme68k/autoconf 4
.Sh HISTORY
The
.Tn mvme68k
.Nm intro
man page first appeared in
.Nx 1.5 .