1.\" $OpenBSD: asp.4,v 1.18 2018/06/18 06:06:52 jmc Exp $ 2.\" 3.\" 4.\" Copyright (c) 1999 Michael Shalayeff 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd $Mdocdate: June 18 2018 $ 28.Dt ASP 4 hppa 29.Os 30.Sh NAME 31.Nm asp 32.Nd core bus controller as present on older HP 9000/700 machines 33.Sh SYNOPSIS 34.Cd "asp0 at mainbus? irq 28" 35.Cd "gsc* at asp?" 36.Sh DESCRIPTION 37The supported Core bus controllers are those present on older 38.Tn PA-RISC 39workstations, and include: 40.Pp 41.Bl -bullet -compact 42.It 43Core bus controller 44.It 45System clock 46.It 47Interrupt controller 48.It 49DMA controller 50.It 51Real-time clock Interface 52.It 53RAM and EEPROM controllers 54.El 55.Pp 56The irq level supplied is hardwired to the CPU pin, so changing the value 57would not produce any noticeable results (except lost interrupts for the whole 58I/O subsystem). 59.Sh MACHINES 60An incomplete list of machines that use the 61.Tn ASP 62bus controller: 63.Pp 64.Bl -bullet -compact 65.It 66705, 710 67.It 68715/{33,50,75} 69.It 70725/{50,75} 71.It 72720, 730, 750 73.It 74735/* 75.It 76745i/{50,75} 77.It 78747i/{50,75} 79.It 80755/* 81.El 82.Sh SEE ALSO 83.Xr gsc 4 , 84.Xr intro 4 , 85.Xr io 4 86.Rs 87.%T "Hardball I/O Subsystem ERS" 88.%N Revision 1.1 89.%D 30 September 1991 90.%Q Hewlett-Packard 91.Re 92.Sh HISTORY 93The 94.Nm 95driver 96appeared in 97.Ox 2.4 . 98