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Annotation of 43BSDTahoe/man/man4/vax/acc.4, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1983 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)acc.4       6.1 (Berkeley) 5/15/85
        !             6: .\"
        !             7: .TH ACC 4 "May 15, 1985"
        !             8: .UC 5
        !             9: .SH NAME
        !            10: acc \- ACC LH/DH IMP interface
        !            11: .SH SYNOPSIS
        !            12: .B "pseudo-device imp"
        !            13: .br
        !            14: .B "device acc0 at uba0 csr 167600 vector accrint accxint"
        !            15: .SH DESCRIPTION
        !            16: The 
        !            17: .I acc
        !            18: device provides a Local Host/Distant Host
        !            19: interface to an IMP.  It is normally used when participating
        !            20: in the DARPA Internet.  The controller itself is not accessible
        !            21: to users, but instead provides the hardware support to the IMP
        !            22: interface described in
        !            23: .IR imp (4).
        !            24: When configuring, the 
        !            25: .I imp
        !            26: pseudo-device must also be included.
        !            27: .SH DIAGNOSTICS
        !            28: .BR "acc%d: not alive" .
        !            29: The initialization routine was entered even though the device
        !            30: did not autoconfigure.  This indicates a system problem.
        !            31: .PP
        !            32: .BR "acc%d: can't initialize" .
        !            33: Insufficient UNIBUS resources existed to initialize the device.
        !            34: This is likely to occur when the device is run on a buffered
        !            35: data path on an 11/750 and other network interfaces are also
        !            36: configured to use buffered data paths, or when it is configured
        !            37: to use buffered data paths on an 11/730 (which has none).
        !            38: .PP
        !            39: .BR "acc%d: imp doesn't respond, icsr=%b" .
        !            40: The driver attempted to initialize the device, but the IMP
        !            41: failed to respond after 500 tries.  Check the cabling.
        !            42: .PP
        !            43: .BR "acc%d: stray xmit interrupt, csr=%b" .
        !            44: An interrupt occurred when no output had previously been started. 
        !            45: .PP
        !            46: .BR "acc%d: output error, ocsr=%b, icsr=%b" .
        !            47: The device indicated a problem sending data on output.
        !            48: .PP
        !            49: .BR "acc%d: input error, csr=%b" .
        !            50: The device indicated a problem receiving data on input.
        !            51: .PP
        !            52: .BR "acc%d: bad length=%d" .
        !            53: An input operation resulted in a data transfer of less than
        !            54: 0 or more than 1008 bytes of
        !            55: data into memory (according to the word count register).
        !            56: This should never happen as the maximum size of a host-IMP
        !            57: message is 1008 bytes.

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