intro —
introduction to mvme68k special files and hardware support
This section describes the special files, related driver functions, and
  networking support available in the system. In this part of the manual, the
  SYNOPSIS section of each configurable device gives a sample specification for
  use in constructing a system description for the
  config(1) program. The
  DIAGNOSTICS section lists messages which may appear on the console and/or in
  the system error log /var/log/messages due to errors
  in device operation; see
  syslogd(8) for more
  information.
This section contains both devices which may be configured into
    the system and network related information. The networking support is
    introduced in
    netintro(4).
This section describes the hardware supported on the 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
  device driver, or it may be used within the networking
  subsystem and have a network interface driver. Block and
  character devices are accessed through files in the file system of a special
  type; see mknod(8). Network
  interfaces are indirectly accessed through the interprocess communication
  facilities provided by the system; see
  socket(2).
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.
The autoconfiguration system is described in
    mvme68k/autoconf(4).
    A list of the supported devices is given below.
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.
  - clmpcc
- Cirrus Logic CD2401 four channel Communications controller
- clock
- Hardware counter/timer clock driver
- ie
- Intel 82596-based Ethernet interface
- kmem
- kernel virtual memory
- le
- AMD Lance-based Ethernet interface
- lpt
- Onboard parallel printer interface
- mem
- physical memory
- mcchip
- MVME162 and MVME172 MCChip (similar to PCCchip2)
- ncrsc
- NCR 53c710 SCSI I/O Processor
- pcc
- MVME147 PCC Chip
- pcctwo
- MVME167 and MVME177 PCCchip2
- vmepcc
- MVME147 VMEbus interface chip
- vmetwo
- MVME1[67]x Enhanced VMEbus interface chip
- wdsc
- WD33c93 SCSI Bus Interface Controller
- zsc
- Zilog Z8530 Dual-port Serial Interface on MVME147 and MVME162
 
The mvme68k intro man page first appeared in
  NetBSD 1.5.