.\"	$OpenBSD: cbus.4,v 1.5 2020/06/08 00:56:19 aoyama Exp $
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.\" Copyright (c) 2014 Kenji Aoyama.
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.Dd $Mdocdate: June 8 2020 $
.Dt CBUS 4 luna88k
.Os
.Sh NAME
.Nm cbus
.Nd NEC PC-9801 extension board slot bus
.Sh SYNOPSIS
.Cd "cbus0 at mainbus0"
.Sh DESCRIPTION
.Nm
is a bus interface of "NEC PC-9801 extension board slot" (so-called
"C-bus" in Japan) on LUNA-88K2.
The original LUNA-88K does not have this slot.
.Sh LIST OF DEVICES
The devices currently supported on
.Nm
are:
.Pp
.Bl -tag -width 10n -offset 3n -compact
.It Xr ne 4
Allied Telesis CentreCOM LA-98 series
.It Xr necsb 4
NEC PC-9801-86 sound board
.It Xr pcexmem 4
NEC PC-9801 extension board slot
.It Xr pcmcia 4
PCMCIA (PC Card) support
.El
.Sh SEE ALSO
.Xr intro 4
.Sh HISTORY
The
.Nm
bus interface first appeared in
.Ox 5.7 .