File: DS18S20.man

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'\"
'\" Copyright (c) 2003-2004 Paul H Alfille, MD
'\" (paul.alfille@gmail.com)
'\"
'\" Device manual page for the OWFS -- 1-wire filesystem package
'\" Based on Dallas Semiconductor, Inc's datasheets, and trial and error.
'\"
'\" Free for all use. No warranty. None. Use at your own risk.
'\"
.TH DS18S20 3  2003 "OWFS Manpage" "One-Wire File System"
.SH NAME
.TP
.B DS18S20
\- High-Precision 1-Wire Digital Thermometer
.TP
.B DS1920
\- iButton version of the thermometer
.SH SYNOPSIS
Thermometer.
.PP
.B 10
[.]XXXXXXXXXXXX[XX][/[
.so man3/temperatures_mini.3so
|
.B latesttemp
|
.B die
|
.B power
|
.B temphigh
|
.B templow
|
.B trim
|
.B trimblanket
|
.B trimvalid
|
.so man3/standard_mini.3so
]]
.SH FAMILY CODE
.PP
.I 10
.SH SPECIAL PROPERTIES
.SS power
.I read-only,yes-no
.br
Is the chip powered externally (=1) or from the parasitically from the data bus (=0)?
.SS temperature
.I read-only, floating point
.br
Measured temperature with 12 bit resolution. 
.SS temperature9 temperature10 temperature11 temperature12
.I read-only, floating point
.br
Measured temperature at 9 to 12 bit resolution. There is a tradeoff of time versus accuracy in the temperature measurement.
.SS latesttemp
.I read-only, floating point
.br
Measured temperature at 9 to 12 bit resolution, depending on the resolution of the latest conversion on this chip. Reading this node will never trigger a temperature conversion. Intended for use in conjunction with
.B /simultaneous/temperature.
.SS fasttemp
.I read-only, floating point
.br
Equivalent to
.I temperature9
.so man3/temperature_threshold.3so
.so man3/temperature_errata.3so
.SH STANDARD PROPERTIES
.so man3/standard.3so
.SH DESCRIPTION
.so man3/description.3so
.SS DS18S20 DS1920
The
.B DS18S20 (3)
is one of several available 1-wire temperature sensors. It has been largely replaced by the
.B DS18B20 (3)
and
.B DS1822 (3)
as well as temperature/vlotage measurements in the
.B DS2436 (3)
and
.B DS2438 (3).
For truly versatile temperature measurements, see the protean
.B DS1921 (3) Thermachron (3).
.SH ADDRESSING
.so man3/addressing.3so
.SH DATASHEET
.br
http://pdfserv.maxim-ic.com/en/ds/DS18S20.pdf
.SH SEE ALSO
.so man3/seealso.3so
.SH AVAILABILITY
http://www.owfs.org
.SH AUTHOR
Paul Alfille (paul.alfille@gmail.com)