107 lines
3.8 KiB
Groff
107 lines
3.8 KiB
Groff
.\" $NetBSD: acc.4,v 1.3 1996/03/03 17:13:10 thorpej Exp $
|
|
.\"
|
|
.\" Copyright (c) 1983, 1991 The Regents of the University of California.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" from: @(#)acc.4 6.4 (Berkeley) 3/27/91
|
|
.\"
|
|
.Dd March 27, 1991
|
|
.Dt ACC 4 vax
|
|
.Os BSD 4.2
|
|
.Sh NAME
|
|
.Nm acc
|
|
.Nd
|
|
.Tn ACC LH/DH IMP
|
|
interface
|
|
.Sh SYNOPSIS
|
|
.Cd pseudo-device imp "device acc0 at uba0 csr 167600 vector accrint accxint"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm acc
|
|
device provides a Local Host/Distant Host
|
|
interface to an
|
|
.Tn IMP .
|
|
It is normally used when participating
|
|
in the
|
|
.Tn DARPA
|
|
Internet. The controller itself is not accessible
|
|
to users, but instead provides the hardware support to the
|
|
.Tn IMP
|
|
interface described in
|
|
.Xr imp 4 .
|
|
The configuration entry for the
|
|
.Xr imp
|
|
must also include the
|
|
.Em pseudo-device
|
|
as shown above.
|
|
.Sh DIAGNOSTICS
|
|
.Bl -diag
|
|
.It acc%d: not alive.
|
|
The initialization routine was entered even though the device
|
|
did not autoconfigure. This indicates a system problem.
|
|
.Pp
|
|
.It acc%d: can't initialize.
|
|
Insufficient UNIBUS resources existed to initialize the device.
|
|
This is likely to occur when the device is run on a buffered
|
|
data path on an 11/750 and other network interfaces are also
|
|
configured to use buffered data paths, or when it is configured
|
|
to use buffered data paths on an 11/730 (which has none).
|
|
.Pp
|
|
.It acc%d: imp doesn't respond, icsr=%b.
|
|
The driver attempted to initialize the device, but the
|
|
.Tn IMP
|
|
failed to respond after 500 tries. Check the cabling.
|
|
.Pp
|
|
.It acc%d: stray xmit interrupt, csr=%b.
|
|
An interrupt occurred when no output had previously been started.
|
|
.Pp
|
|
.It acc%d: output error, ocsr=%b, icsr=%b.
|
|
The device indicated a problem sending data on output.
|
|
.Pp
|
|
.It acc%d: input error, csr=%b.
|
|
The device indicated a problem receiving data on input.
|
|
.Pp
|
|
.It acc%d: bad length=%d.
|
|
An input operation resulted in a data transfer of less than
|
|
0 or more than 1008 bytes of
|
|
data into memory (according to the word count register).
|
|
This should never happen as the maximum size of a
|
|
.Pf host- Tn IMP
|
|
message is 1008 bytes.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr netintro 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
interface appeared in
|
|
.Bx 4.2 .
|