tm121temp(4) [netbsd man page]

TM121TEMP(4)						   BSD Kernel Interfaces Manual 					      TM121TEMP(4)

NAME

     tm121temp -- Texas Instruments TMP121 temperature sensor

SYNOPSIS

     tm121temp0 at spi? slave 0

DESCRIPTION

     The tm121temp driver provides support for the Texas Instruments (formerly Burr-Brown) TMP121 temperature sensor with the envsys(4) API.
     These devices are connected to the host system with spi(4) or Microwire 4-wire serial busses.  The tm121temp is capable of measuring tempera-
     tures with a 2 degree accuracy over the frame from -40 to 125 Celsius.  Temperatures are reported with a granularity of 625 microKelvins.

     tm121temp devices can transfer information at up to 10MHz, and support SPI mode 0.

     The device reports itself with envsys(4) using the generic device name.  This name can be overridden, by specifying an alternate name in the
     device property ``envsys-description''.

SEE ALSO

     envsys(4), spi(4), envstat(8)

HISTORY

     The tm121temp driver was written by Garrett D'Amore and first appeared in NetBSD 4.0.

BSD
								  October 9, 2006							       BSD

SDTEMP(4)						   BSD Kernel Interfaces Manual 						 SDTEMP(4)

NAME

     sdtemp -- JEDEC JC-42.4 compatible memory module temperature sensors

SYNOPSIS

     sdtemp* at iic? addr 0x18
     sdtemp* at iic? addr 0x19
     sdtemp* at iic? addr 0x1a
     sdtemp* at iic? addr 0x1b
     sdtemp* at iic? addr 0x1c
     sdtemp* at iic? addr 0x1d
     sdtemp* at iic? addr 0x1e
     sdtemp* at iic? addr 0x1f

DESCRIPTION

     The sdtemp driver provides support for the Microchip Technology MCP9805/98242 and other chips that conform to JEDEC Standard 21-C section
     4.7.  Memory module temperature sensors are optional on DDR2 and DDR3 SDRAM DIMMs.  Sensors provided by this driver, including the on-chip
     thresholds for the Alarm Window and Critical level, are accessed through the envsys(4) API.

     The sdtemp supports temperature ranges from -256 to +255 degrees C.

     Chips supported by the sdtemp driver include:

	   o   Catalyst CAT34TS02 and CAT6095

	   o   Analog Devices ADT7408

	   o   Integrated Deviced Technology TSE2002B3 and TSE3000B3

	   o   Maxim MAX6604

	   o   Microchip Technology MCP9805, MCP9843, MCP98242, and MCP98243

	   o   NXP Semiconductors SE97 and SE98

	   o   STmicroelectronics STTS424 and STTS424E

SEE ALSO

     envsys(4), envstat(8)

HISTORY

     The sdtemp device appeared in NetBSD 6.0.

BUGS

     Interrupt support is unimplemented.

BSD
								  January 8, 2011							       BSD