NAME    [Toc]    [Back]

     sbus - introduction to sbus bus support and drivers

SYNOPSIS    [Toc]    [Back]

     sbus* at mainbus?
     sbus* at iommu?
     sbus* at xbox?

DESCRIPTION    [Toc]    [Back]

     These sbus attachments are specific to the sparc and sparc64
ports.

     sbus  is an I/O interconnect bus mostly found in SPARC workstations and
     small to medium server class systems.  It supports both  onboard peripherals
  and extension boards.  The sbus specifications define
the bus protocol
 as well as the electrical and mechanical properties of
the extension
 slots.

HARDWARE    [Toc]    [Back]

     OpenBSD  includes  the following sbus drivers, sorted by device type and
     driver name:

   Audio interfaces    [Toc]    [Back]
        audioamd(4)    AMD 7990 codecs.
        audiocs(4)     Crystal Semiconductor CS4231A codecs.

   SCSI interfaces    [Toc]    [Back]
        esp(4)         NCR53c94 and compatible SCSI interfaces.
        isp(4)         Qlogic SCSI interfaces.

   Network interfaces    [Toc]    [Back]
        be(4)          ``Big Mac'' Ethernet board.
        hme(4)         ``Happy Meal'' Ethernet interfaces.
        le(4)          Lance 7990 series Ethernet interfaces.
        lebuffer(4), ledma(4)
                       Lance 7990 series Ethernet DMA interfaces.
        qe(4)          Quad Ethernet Controller board.

   Bridges    [Toc]    [Back]
        stp(4)         sbus pcmcia(4) bridge.

   Graphics devices    [Toc]    [Back]
        agten(4)        Fujitsu  AG-10e  accelerated 24-bit color
frame buffer.
        bwtwo(4)       Monochromatic frame buffer.
        cgfourteen(4)  Accelerated 8/24-bit color frame buffer.
        cgsix(4)       Accelerated 8-bit color frame buffer.
        cgthree(4)     8-bit color frame buffer.
        cgtwelve(4)    Accelerated 24-bit color frame buffer.
        mgx(4)         SMS MGX  and  MGXPlus  accelerated  24-bit
color frame
                       buffers.
        pninek(4)       Weitek  Power9000  frame  buffer found on
Tadpole SPARCbook
 3.
        pnozz(4)       Weitek Power9100  frame  buffer  found  on
Tadpole SPARCbook
 3GS, 3GX, 3TX and 3XP.
        rfx(4)          Vitec/Connectware/AP&D  RasterFlex framebuffer series.
        tcx(4)         Accelerated 8/24-bit color frame buffer.
        tvtwo(4)       Accelerated 24-bit color frame buffer.
        vigra(4)       8-bit SBus color frame  buffer  with  VGAcompatible
                       modes.
        zx(4)          Accelerated 24-bit color frame buffer.

   Serial and parallel interfaces    [Toc]    [Back]
        apio(4)         Aurora  Technologies  pio1  parallel port
card.
        asio(4)        Aurora Technologies pio2 serial port card.
        bpp(4)         Parallel port.
        magma(4)        Magma LC series Serial/Parallel Interface
cards.
        spif(4)        Sun Serial/Parallel Interface card.

   Miscellaneous devices    [Toc]    [Back]
        auxio(4)       Miscellaneous I/O controls.
        presto(4)      Prestoserve battery-backed memory.
        uperf(4)       Performance counters on the host bridge.

SEE ALSO    [Toc]    [Back]

     agten(4),   apio(4),   asio(4),   audioamd(4),   audiocs(4),
auxio(4), be(4),
     bpp(4),   bwtwo(4),   cgfourteen(4),  cgsix(4),  cgthree(4),
cgtwelve(4),
     esp(4), hme(4), intro(4), isp(4), le(4),  lebuffer(4),  ledma(4), magma(4),
     mgx(4), pnozz(4), presto(4), qe(4), qec(4), rfx(4), spif(4),
stp(4),
     tcx(4), tvtwo(4), uperf(4), vigra(4), xbox(4), zx(4)

HISTORY    [Toc]    [Back]

     The machine-independent sbus subsystem  appeared  in  NetBSD
1.3.  OpenBSD
     support first appeared in OpenBSD 2.0.

OpenBSD      3.6                        February     29,     2004