72 lines
2.4 KiB
Groff
72 lines
2.4 KiB
Groff
.\"
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.\" Copyright (c) 1996 Jonathan Stone.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by Jonathan Stone.
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.\" 3. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $NetBSD: tc.4,v 1.2 1997/10/13 11:24:01 lukem Exp $
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.\"
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.Dd August 6, 1996
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.Dt TC 4 pmax
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.Os NetBSD 1.2
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.Sh NAME
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.Nm tc
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.Nd
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turbochannel SCSI adaptor
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.Sh SYNOPSIS
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.Cd "tc? at ioasic?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provies support for the DEC TURBOchannel expansion
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bus on Decstation 5000 series machines. Turbochannel is a 32-bit wide
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synchronous DMA-capable bus, running at 25 Mhz on higher-end machines
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and at 12.5MHz on lower-end machines.
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.Nm
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.Sh SEE ALSO
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.Xr intro 4 ,
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.Xr asc 4 ,
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.Xr le 4 ,
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.Xr cfb 4 ,
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.Xr sfb 4 ,
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.Xr mfb 4 ,
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.Sh HISTORY
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The
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.Nm
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driver
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first appeared in
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.Nx 1.1 .
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.Sh BUGS
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The Decstation 5000/200 does not actually have an
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.Nm ioasic
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chip, but for consistency it must be configured as if it
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did.
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The
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.Nm
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driver makes poor use of interrupt priority on the 5000/1xx
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series.
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