File: DS1977.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 DS1977 3  2003 "OWFS Manpage" "One-Wire File System"
.SH NAME
.B DS1977
\- Password Protected 32kbit Memory iButton
.SH SYNOPSIS
Non-volatile memory.
.PP
.B 37
[.]XXXXXXXXXXXX[XX][/[
.B memory
|
.B pages/page.[0-510|ALL]
|
.B set_number/full
|
.B set_number/read
|
.B set_password/enabled
|
.B set_password/full
|
.B set_password/read
|
.B use_number/full
|
.B use_number/read
|
.B use_password/full
|
.B use_password/read
|
.so man3/standard_mini.3so
]]
.SH FAMILY CODE
.PP
.I 37
DS1977
.SH SPECIAL PROPERTIES
.SS memory
.I read-write, binary
.br
32704 bytes of memory. Possibly protected by a password.
.SS pages/page.0 ... pages/page.510 pages/page.ALL
.I read-write, binary
.br
Memory is split into 511 pages of 64 bytes each.
.I ALL
is an aggregate of the pages. Each page is accessed sequentially.
.SS set_number/full set_number/read
.I write-only, ascii
.br
Passwords entered as numbers, either decimal, or hex of form 0x0123456789ABCDEF. Handled the same as
.I set_password/xxx
.SS set_password/enable
.I read-write, yes-no
.br
Turn on/off password protection for the DS1977, or return the current state.
.SS set_password/full set_password/read
.I write-only, binary
.br
Passwords (8 byte values) that allow read or full access to the DS1977 memory. The password set by
.I set_password/xxx
are stored in the DS1977 and locally in the program as well (as if
.I use_password/xxx
was also called).
.SS use_password/full use_password/read
.I write-only, binary
.br
Passwords (8 byte values) that allow read or full access to the DS1977 memory. The password set by
.SS use_number/full use_number/read
.I write-only, ascii
.br
Passwords entered as numbers, either decimal, or hex of form 0x0123456789ABCDEF. Handled the same as
.I use_password/xxx
.SS use_password/full use_password/read
.I write-only, binary
.br
Passwords (8 byte values) that allow read or full access to the DS1977 memory. The password set by
.I use_password/xxx
are stored in the program and must match the passwords stored in the DS1977. Changing the DS1977 passwords using
.I set_password/xxx
will change these values as well.
.I use_password/xxx
are stored in the program and must match the passwords stored in the DS1977. Changing the DS1977 passwords using
.I set_password/xxx
will change these values as well.
.SH STANDARD PROPERTIES
.so man3/standard.3so
.SH ALARMS
None.
.SH DESCRIPTION
.so man3/description.3so
.SS DS1977
The
.B DS1977 (3)
is an iButton with static memory that is optionally protected by a password.
.SH ADDRESSING
.so man3/addressing.3so
.SH DATASHEET
.br
http://pdfserv.maxim-ic.com/en/ds/DS1977.pdf
.SH SEE ALSO
.so man3/seealso.3so
.SH AVAILABILITY
http://www.owfs.org
.SH AUTHOR
Paul Alfille (paul.alfille@gmail.com)