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