NUBUS(4)             OpenBSD Programmer's Manual (Mac68K)             NUBUS(4)

NAME
     nubus - Mac68k nubus support and drivers

SYNOPSIS
     nubus0 at mainbus?

DESCRIPTION
     The nubus is a simple backplane bus found on numerous mac68k machines.
     Only extension boards are supported.  The nubus 90 IEEE Std 1196-1987 de-
     fines the bus protocol as well as the electrical and mechanical proper-
     ties of the extension slots.

SEE ALSO
     ae(4), macfb(4), sn(4)

HISTORY
     The nubus driver first appeared in OpenBSD 1.2.

OpenBSD 4.7                      May 31, 2007                                1
