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76 lines
2.6 KiB
Groff
76 lines
2.6 KiB
Groff
.\" $NetBSD: clockport.4,v 1.8 2013/07/20 21:39:59 wiz Exp $
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.\"
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.\" Copyright (c) 2012 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Radoslaw Kujawa.
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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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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd November 26, 2012
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.Dt CLOCKPORT 4 amiga
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.Os
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.Sh NAME
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.Nm clockport
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.Nd introduction to clockport bus support and drivers
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.Sh SYNOPSIS
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.Cd "clockport* at a1k2cp0"
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.Cd "clockport* at gencp?"
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.Sh DESCRIPTION
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Clockport is a general purpose non-autoconfiguring expansion bus, originally
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present on the Amiga 1200, as a part of P9 memory connector.
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.Sh SUPPORTED DEVICES
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The
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.Nx
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includes the following clockport drivers:
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.Bl -tag -offset indent
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.It Xr com 4
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Individual Computers SilverSurfer 16C550-based serial port.
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.\" .It Xr flipper 4
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.\" Individual Computers Delfina Flipper / Delfina 1200.
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.El
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.Sh CODE REFERENCES
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The
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.Nm
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interface is implemented within the
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.Pa sys/arch/amiga/clockport
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directory.
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.Sh SEE ALSO
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.Xr a1k2cp 4
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.\" .Xr gencp 4
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.Sh HISTORY
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The
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.Nm
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subsystem appeared in
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.Nx 7.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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subsystem was written by
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.An Radoslaw Kujawa Aq Mt radoslaw.kujawa@gmail.com .
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.Sh CAVEATS
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Clockport performance is very low, even by Amiga standards.
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.Pp
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Probing the hardware on clockport might be unreliable.
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