1.\" $OpenBSD: clock.4,v 1.6 2008/04/16 11:35:10 kettenis Exp $ 2.\" 3.\" Copyright (c) 2004 Jason L. Wright (jason@thought.net) 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25.\" POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd $Mdocdate: April 16 2008 $ 28.Dt CLOCK 4 sparc64 29.Os 30.Sh NAME 31.Nm clock 32.Nd Real-time clock 33.Sh SYNOPSIS 34.Cd "clock* at sbus?" 35.Cd "clock* at ebus?" 36.Cd "clock0 at fhc0" 37.Cd "rtc* at ebus?" 38.Sh DESCRIPTION 39The 40.Nm 41device provides support for the real-time clocks based 42on the following chips: 43.Pp 44.Bl -bullet -offset indent -compact 45.It 46Mostek MK48T02 47.It 48Mostek MK48T08 49.It 50Mostek MK48T18 51.It 52Mostek MK48T59 53.El 54.Pp 55The 56.Nm rtc 57device provides support for the real-time clock based 58on the following chips: 59.Pp 60.Bl -bullet -offset indent -compact 61.It 62Dallas/Maxim Semiconductor DS1287 63.It 64Acer Labs M5819 65.It 66Acer Labs M5823 67.It 68Texas Intruments BQ4802 69.El 70.Sh SEE ALSO 71.Xr ebus 4 , 72.Xr fhc 4 , 73.Xr intro 4 , 74.Xr sbus 4 75