TC(4)                   NetBSD Kernel Interfaces Manual                  TC(4)

NAME
     tc -- TURBOchannel expansion bus driver

SYNOPSIS
   alpha
     tc* at tcasic?

   pmax
     tc* at mainbus0

DESCRIPTION
     The tc driver provides machine-independent support for the DEC TURBOchan-
     nel expansion bus found on all DEC 5000-series machines with MIPS and DEC
     3000-series with Alpha processors.

     Your system may support additional TURBOchannel devices.  Drivers for
     TURBOchannel devices not listed here are machine-dependent.  Consult your
     system's intro(4) for additional information.

HARDWARE
     NetBSD includes machine-independent TURBOchannel drivers, sorted by
     device type and driver name:

   SCSI interfaces
           asc        PMAZ-A single-channel SCSI adapter

           tcds       PMAZ-DS, PMAZ-FS, PMAZB-AA and PMAZC-AA dual-channel
                      SCSI adapters

   Network interfaces
           fta        PMAF-F DEFTA FDDI controller

           le         LANCE Ethernet interface

   Frame buffers
           cfb        PMAG-B CX colour unaccelerated 2-D framebuffer

           mfb        PMAG-A MX monochrome framebuffer

           px         PMAG-C PX accelerated graphics boards

           pxg        PMAG-D, PMAG-E and PMAG-F PXG accelerated graphics
                      boards

           sfb        PMAGB-BA HX colour unaccelerated 2-D framebuffer

           tfb        PMAG-J TX 24-bit colour unaccelerated 2-D framebuffer

   Miscellaneous
           ioasic     baseboard IO control ASIC for DEC TURBOchannel systems

SEE ALSO
     asc(4), cfb(4), fta(4), intro(4), ioasic(4), le(4), mfb(4), px(4),
     pxg(4), sfb(4), tcds(4), tfb(4)

HISTORY
     The tc driver first appeared in NetBSD 1.1.

BUGS
     The tc driver makes poor use of interrupt priority on the 5000/1xx series
     systems.

NetBSD 5.0.1                  September 12, 2001                  NetBSD 5.0.1

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