DS1993 - 4kbit Memory iButton

       All 1-wire devices are factory assigned a unique 64-bit address. This address is of the form:

       FamilyCode
              8 bits

       Address
              48 bits

       CRC    8 bits

       Addressing under OWFS is in hexadecimal, of form:

              01.123456789ABC

       where 01 is an example 8-bit family code, and 12345678ABC is an example 48 bit address.

       The dot is optional, and the CRC code can included. If included, it must be correct.

       None.

       Paul Alfille (paul.alfille@gmail.com)

OWFS Manpage                                          2003                                             DS1993(3)

http://www.owfs.org

http://pdfserv.maxim-ic.com/en/ds/DS1992-DS1993.pdf

1-Wire1-wire is a wiring protocol and series of devices designed and manufactured by Dallas Semiconductor, Inc.
       The bus is a low-power low-speed low-connector scheme where the data line can also provide power.

       Each device is uniquely and unalterably numbered during manufacture. There are a wide variety of devices,
       including  memory,  sensors (humidity, temperature, voltage, contact, current), switches, timers and data
       loggers. More complex devices (like thermocouple sensors) can be built with these  basic  devices.  There
       are also 1-wire devices that have encryption included.

       The 1-wire scheme uses a single busmaster and multiple slaves on the same wire. The bus master initiates
       all communication. The slaves can be individually discovered and addressed using their unique ID.

       Bus masters come in a variety of configurations including serial, parallel, i2c, network or USB adapters.

   OWFSdesignOWFS  is  a suite of programs that designed to make the 1-wire bus and its devices easily accessible. The
       underlying principle is to create a virtual filesystem, with the unique ID being the directory,  and  the
       individual properties of the device are represented as simple files that can be read and written.

       Details of the individual slave or master design are hidden behind a consistent interface. The goal is to
       provide  an easy set of tools for a software designer to create monitoring or control applications. There
       are some performance enhancements in the implementation, including data caching, parallel access  to  bus
       masters,  and  aggregation  of  device  communication.  Still  the fundamental goal has been ease of use,
       flexibility and correctness rather than speed.

   DS1993
       The DS1993(3) is an iButton with static memory. Data is read/written with error checking (transparent to
       the user).  The DS1992 , DS1993 , DS1995 , and DS1996 differ in their function by the amount of  on-board
       memory  they  possess.  (The  internal protocols are slightly different, but the OWFS system handles this
       automatically.)

06     DS1996

DS1993 - 4kbit Memory iButton

Programsowfs(1)owhttpd(1)owftpd(1)owserver(1)owdir(1)owread(1)owwrite(1)owpresent(1)owtap(1)Configurationandtestingowfs(5)owtap(1)owmon(1)Languagebindingsowtcl(3)owperl(3)owcapi(3)ClocksDS1427(3)DS1904(3)DS1994(3)DS2404(3)DS2404S(3)DS2415(3)DS2417(3)IDDS2401(3)DS2411(3)DS1990A(3)MemoryDS1982(3)DS1985(3)DS1986(3)DS1991(3)DS1992(3)DS1993(3)DS1995(3)DS1996(3)DS2430A(3)DS2431(3)DS2433(3)DS2502(3)DS2506(3)DS28E04(3)DS28EC20(3)SwitchesDS2405(3)DS2406(3)DS2408(3)DS2409(3)DS2413(3)DS28EA00(3)InfernoEmbedded(3)TemperatureDS1822(3)DS1825(3)DS1820(3)DS18B20(3)DS18S20(3)DS1920(3)DS1921(3)DS1821(3)DS28EA00(3)DS28E04(3)EDS0064(3)EDS0065(3)EDS0066(3)EDS0067(3)EDS0068(3)EDS0071(3)EDS0072(3)MAX31826(3)HumidityDS1922(3)DS2438(3)EDS0065(3)EDS0068(3)VoltageDS2450(3)ResistanceDS2890(3)Multifunction(current,voltage,temperature)DS2436(3)DS2437(3)DS2438(3)DS2751(3)DS2755(3)DS2756(3)DS2760(3)DS2770(3)DS2780(3)DS2781(3)DS2788(3)DS2784(3)CounterDS2423(3)LCDScreenLCD(3)DS2408(3)CryptoDS1977(3)PressureDS2406(3)TAI8570(3)EDS0066(3)EDS0068(3)MoistureEEEF(3)DS2438(3)

memoryread-write,binary
       512 bytes of memory.

   pages/page.0...pages/page.15pages/page.ALLread-write,binary
       Memory is split into 16 pages of 32 bytes each.  ALL is an aggregate of the pages. Each page is  accessed
       sequentially.

addressr_addressread-only,ascii
       The entire 64-bit unique ID. Given as upper case hexadecimal digits (0-9A-F).
       address starts with the family code
       raddress is the address in reverse order, which is often used in other applications and labeling.

   crc8read-only,ascii
       The  8-bit error correction portion. Uses cyclic redundancy check. Computed from the preceding 56 bits of
       the unique ID number. Given as upper case hexadecimal digits (0-9A-F).

   familyread-only,ascii
       The 8-bit family code. Unique to each type of device. Given as upper case hexadecimal digits (0-9A-F).

   idr_idread-only,ascii
       The 48-bit middle portion of the unique ID number. Does not include the family  code  or  CRC.  Given  as
       upper case hexadecimal digits (0-9A-F).
       rid is the id in reverse order, which is often used in other applications and labeling.

   locatorr_locatorread-only,ascii
       Uses  an  extension  of  the  1-wire  design  from  iButtonLink  company  that associated 1-wire physical
       connections with a unique 1-wire code. If the connection is behind a LinkLocator the locatorwillshowaunique8-bytenumber(16characterhexadecimal)startingwithfamilycodeFE.
       If no LinkLocator is between the device and the master, the locator field will be all FF.
       rlocator is the locator in reverse order.

   present(DEPRECATED)read-only,yes-no
       Is the device currently present on the 1-wire bus?

   typeread-only,ascii
       Part name assigned by Dallas Semi. E.g.  DS2401 Alternative packaging  (iButton  vs  chip)  will  not  be
       distiguished.

       Non-volatile memory.

       06  [.]XXXXXXXXXXXX[XX][/[  memory  | pages/page.[0-15|ALL] | address | crc8 | id | locator | r_address |
       r_id | r_locator | type ]]