$NetBSD: sbus.4,v 1.5 2002/01/21 17:54:10 wiz Exp $
Copyright (c) 2001 The NetBSD Foundation, Inc.
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.Dd May 27, 2001 .Dt SBUS 4 .Os .Sh NAME .Nm sbus .Nd introduction to machine-independent sbus bus support and drivers .Sh SYNOPSIS .Cd "sbus* at mainbus?" .Cd "sbus* at iommu?" .Cd "sbus* at xbox?"
p These .Nm attachments are specific to the OpenBSD/sparc and OpenBSD/sparc64 ports. .Sh DESCRIPTION .Nm is a I/O interconnect bus mostly found in .Tn SPARC workstations and small to medium server class systems. It supports both on-board peripherals and extension boards. The .Nm specifications define the bus protocol as well as the electrical and mechanical properties of the extension slots. .Sh HARDWARE .Ox includes machine-independent .Nm drivers, sorted by device type and driver name: .Ss Audio interfaces l -tag -width 10n -offset ind t Xr audioamd 4 .Tn AMD 7990 codecs t Xr audiocs 4 .Tn "Crystal Semiconductor" CS4231A codecs .El .Ss SCSI interfaces l -tag -width 10n -offset ind t Xr esp 4 NCR53c94 and compatible .Tn SCSI interfaces. t Xr isp 4 Qlogic .Tn SCSI interfaces. .El .Ss Network interfaces l -tag -width 10n -offset ind t Xr le 4 .Tn Lance 7990 series .Tn Ethernet interfaces. t Xr hme 4 .Dq Happy Meal .Tn Ethernet interfaces. t Xr en 4 Midway-based Efficient Networks Inc. and Adaptec ATM interfaces. t Xr be 4 .Dq Big Mac .Tn Ethernet board. t Xr qe 4 Quad Ethernet Controller board. .El .Ss Bridges l -tag -width 10n -offset ind t Xr xbox 4 an .Nm sbus expansion box. .El .Ss Graphics devices l -tag -width 10n -offset ind t Xr bwtwo 4 framebuffer device. t Xr cgthree 4 framebuffer device. t Xr cgsix 4 framebuffer device. t Xr tcx 4 framebuffer device. .El .Sh SEE ALSO .Xr intro 4 .Sh HISTORY The machine-independent .Nm sbus subsystem appeared in .Nx 1.3 . OpenBSD support first appeared in .Ox 2.0 .