1.\" $NetBSD: sdtemp.4,v 1.2 2010/07/28 18:28:15 pgoyette Exp $ 2.\" 3.\" Copyright (c) 2008 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Paul Goyette. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd July 29, 2010 31.Dt SDTEMP 4 32.Os 33.Sh NAME 34.Nm sdtemp 35.Nd JEDEC JC-42.4 compatible memory module temperature sensors 36.Sh SYNOPSIS 37.Cd "sdtemp0 at iic? addr 0x18" 38.Cd "sdtemp0 at iic? addr 0x19" 39.Cd "sdtemp0 at iic? addr 0x1a" 40.Cd "sdtemp0 at iic? addr 0x1b" 41.Cd "sdtemp0 at iic? addr 0x1c" 42.Cd "sdtemp0 at iic? addr 0x1d" 43.Cd "sdtemp0 at iic? addr 0x1e" 44.Cd "sdtemp0 at iic? addr 0x1f" 45.Sh DESCRIPTION 46The 47.Nm 48driver provides support for the 49.Tn Microchip Technology 50MCP9805/98242 and other chips that conform to JEDEC Standard 21-C section 514.7. 52Memory module temperature sensors are optional on DDR2 and DDR3 SDRAM DIMMs. 53Sensors provided by this driver, including the on-chip thresholds for the 54Alarm Window and Critical level, are accessed through the 55.Xr envsys 4 56API. 57.Pp 58The 59.Nm 60supports temperature ranges from -256 to +255 degrees C. 61.Sh HARDWARE 62Chips supported by the 63.Nm 64driver include: 65.Pp 66.Bl -item -offset indent 67.It 68.Tn Catalyst 69.Em CAT34TS02 70and 71.Em CAT6095 72.It 73.Tn Analog Devices 74.Em ADT7408 75.It 76.Tn Integrated Deviced Technology 77.Em TSE2002B3 78and 79.Em TSE3000B3 80.It 81.Tn Maxim 82.Em MAX6604 83.It 84.Tn Microchip Technology 85.Em MCP9805 , 86.Em MCP9843 , 87.Em MCP98242 , 88and 89.Em MCP98243 90.It 91.Tn NXP Semiconductors 92.Em SE97 93and 94.Em SE98 95.It 96.Tn STmicroelectronics 97.Em STTS424 98and 99.Em STTS424E 100.El 101.Sh SEE ALSO 102.Xr envsys 4 , 103.Xr envstat 8 104.Sh HISTORY 105The 106.Nm 107device appeared in 108.Nx 6.0 . 109.Sh BUGS 110Interrupt support is unimplemented. 111