TM121TEMP(4)            NetBSD 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 temperatures 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.

NetBSD 6.0                      October 9, 2006                     NetBSD 6.0

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