.\"	$OpenBSD: ebus.4,v 1.17 2008/01/18 22:08:15 jmc Exp $
.\"	$NetBSD: ebus.4,v 1.3 2002/03/13 21:42:20 wiz Exp $
.\"
.\" Copyright (c) 1999 Matthew R. Green
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" 3. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission.
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.Dd $Mdocdate: January 18 2008 $
.Dt EBUS 4 sparc64
.Os
.Sh NAME
.Nm ebus
.Nd introduction to SPARC EBus bus support
.Sh SYNOPSIS
.Cd "ebus* at pci?"
.Cd "ebus* at mainbus0"
.Sh DESCRIPTION
The
.Nm
bus is designed to provide the ability to put ISA and traditional
Intel-style peripherals in a SPARC based system with a minimal amount
of glue logic.
Typically, it is implemented in the PCIO IC from SME, which also
implements an
.Xr hme 4
compatible PCI network device
.Pf ( Ql network ) .
The
.Nm
has four DMA channels, similar to the DMA seen in the
.Xr esp 4
SCSI DMA.
.Pp
.Ox
provides support for the following devices:
.Pp
.Bl -tag -width "audioce(4)XX" -offset 3n -compact
.It Xr audioce 4
SPARC64 EBus CS4231 audio device
.It Xr auxio 4
SPARC64 auxiliary I/O
.It Xr bbc 4
SPARC64 BootBus Controller
.It Xr beeper 4
console annunciator
.It Xr clock 4
Real-time clock
.It Xr com 4
serial communications interface
.It Xr comkbd 4
serial keyboard driver
.It Xr led 4
SPARC64 LED driver
.It Xr lpt 4
parallel port driver
.It Xr pcfiic 4
Phillips PCF8584 I2C controller
.It Xr pckbc 4
PC (ISA) keyboard controller driver
.It Xr pmc 4
power management controller
.It Xr power 4
power button
.It Xr sab 4
Infineon SAB82532 (ESCC2) serial communications driver
.It Xr uperf 4
performance counters driver
.El
.Sh SEE ALSO
.Xr intro 4
.Rs
.%A Sun Microelectronics
.%B Peripheral Component Interconnect Input Output Controller
.%V Part\ No.:\ 802-7837-01
.%D March 1997
.%O "http://www.sun.com/oem/products/manuals/802-7837.pdf"
.Re