$NetBSD: sbus.4,v 1.5 2002/01/21 17:54:10 wiz Exp $
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.Dd $Mdocdate: July 28 2020 $ .Dt SBUS 4 .Os .Sh NAME .Nm sbus .Nd introduction to SBus bus support .Sh SYNOPSIS .Cd "sbus* at mainbus?" .Cd "sbus* at xbox?" .Sh DESCRIPTION These .Nm attachments are specific to the sparc64 port.
p .Nm is an I/O interconnect bus mostly found in 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.
p .Ox provides support for the following devices. Note that not all architectures support all devices. .Ss Audio interfaces l -tag -width 13n -offset ind -compact t Xr audiocs 4 SPARC CS4231 audio device .El .Ss SCSI interfaces l -tag -width 13n -offset ind -compact t Xr esp 4 ESP NCR 53c94 on-board or SBus SCSI interface t Xr qla 4 QLogic ISP2100/2200/2300 Fibre Channel controller t Xr qlw 4 QLogic ISP1000/1020/1x40/1x80/1x160 SCSI controller .El .Ss Network interfaces l -tag -width 13n -offset ind -compact t Xr be 4 SPARC 10/100 Ethernet device t Xr gem 4 GEM 10/100/1Gb Ethernet device t Xr hme 4 Sun Happy Meal 10/100 Ethernet device t Xr le 4 AMD LANCE Ethernet device t Xr lebuffer 4 , Xr ledma 4 AMD LANCE Ethernet device t Xr qe 4 SPARC 10/100 Ethernet device t Xr qec 4 SPARC Quad Ethernet Controller t Xr ti 4 Alteon Networks Tigon I and II Gigabit Ethernet device .El .Ss Bridges l -tag -width 13n -offset ind -compact t Xr stp 4 SBus PCMCIA bridge .El .Ss Graphics devices l -tag -width 13n -offset ind -compact t Xr agten 4 Fujitsu AG-10e accelerated 24-bit color frame buffer t Xr bwtwo 4 Monochromatic frame buffer t Xr cgsix 4 Accelerated 8-bit color frame buffer t Xr cgthree 4 8-bit color frame buffer t Xr cgtwelve 4 Accelerated 24-bit color frame buffer t Xr mgx 4 SMS MGX and MGXPlus accelerated 24-bit color frame buffers t Xr rfx 4 Vitec/Connectware/AP&D RasterFlex framebuffer series t Xr tvtwo 4 Accelerated 24-bit color frame buffer t Xr vigra 4 8-bit SBus color frame buffer with VGA-compatible modes t Xr zx 4 Accelerated 24-bit color frame buffer .El .Ss Serial and parallel interfaces l -tag -width 13n -offset ind -compact t Xr apio 4 Aurora Technologies pio1 parallel port card t Xr asio 4 Aurora Technologies pio2 serial port card t Xr bpp 4 parallel port t Xr magma 4 Magma LC series Serial/Parallel Interface cards t Xr spif 4 Sun Serial/Parallel Interface card t Xr zs 4 Zilog 8530 (ZSCC) serial communications driver .El .Ss Miscellaneous devices l -tag -width 13n -offset ind -compact t Xr auxio 4 Miscellaneous I/O controls t Xr clock 4 real-time clock t Xr fdc 4 NEC765 compatible floppy disk driver t Xr uperf 4 Performance counters on the host bridge t Xr xbox 4 SBus Expansion subsystem .El .Sh SEE ALSO .Xr intro 4 .Sh HISTORY The machine-independent .Nm sbus subsystem appeared in .Nx 1.3 . .Ox support first appeared in .Ox 2.0 .