com.dalsemi.onewire.container
Class OneWireContainer0F

java.lang.Object
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  +--com.dalsemi.onewire.container.OneWireContainer
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        +--com.dalsemi.onewire.container.OneWireContainer0F

public class OneWireContainer0F

extends OneWireContainer

1-Wire container for 8192 byte Add-Only memory (EPROM) iButton, DS1986 and 1-Wire Chip, DS2506. This container encapsulates the functionality of the 1-Wire family type 0F (hex)

The iButton package for this device is primarily used as a read/write portable memory device. The 1-Wire Chip version is used for non-volatile storage.

Features

• 65536 bits (8192 bytes) Electrically Programmable Read-Only Memory (EPROM) communicates with the economy of one signal plus ground
• EPROM partitioned into 256-bit (32-byte) pages for randomly accessing packetized data
• Each memory page can be permanently write-protected to prevent tampering
• Device is an "add only" memory where additional data can be programmed into EPROM without disturbing existing data
• Architecture allows software to patch data by superseding an old page in favor of a newly programmed page
• Overdrive mode boosts communication to 142 kbits per second
• Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C; programs at 11.5V to 12.0V from -40°C to +50°C

Alternate Names

• D2506

Memory

The memory can be accessed through the objects that are returned from the getMemoryBanks method.

The following is a list of the MemoryBank instances that are returned:

• Main Memory
  • Implements MemoryBank, PagedMemoryBank, OTPMemoryBank
  • Size 8192 starting at physical address 0
  • Features Write-once general-purpose non-volatile needs-program-pulse
  • Pages 256 pages of length 32 bytes giving 29 bytes Packet data payload
  • Page Features page-device-CRC pages-redirectable pages-lockable redirection-lockable
  • Extra information for each page Inverted redirection page, length 1
• Write protect pages
  • Implements MemoryBank, PagedMemoryBank, OTPMemoryBank
  • Size 32 starting at physical address 0 (in STATUS memory area)
  • Features Write-once not-general-purpose non-volatile needs-program-pulse
  • Pages 4 pages of length 8 bytes
  • Page Features page-device-CRC
• Write protect redirection
  • Implements MemoryBank, PagedMemoryBank, OTPMemoryBank
  • Size 32 starting at physical address 32 (in STATUS memory area)
  • Features Write-once not-general-purpose non-volatile needs-program-pulse
  • Pages 4 pages of length 8 bytes
  • Page Features page-device-CRC
• Bitmap of used pages for file structure
  • Implements MemoryBank, PagedMemoryBank, OTPMemoryBank
  • Size 24 starting at physical address 64 (in STATUS memory area)
  • Features Write-once not-general-purpose non-volatile needs-program-pulse
  • Pages 3 pages of length 8 bytes
  • Page Features page-device-CRC
• Page redirection bytes
  • Implements MemoryBank, PagedMemoryBank, OTPMemoryBank
  • Size 256 starting at physical address 256 (in STATUS memory area)
  • Features Write-once not-general-purpose non-volatile needs-program-pulse
  • Pages 32 pages of length 8 bytes
  • Page Features page-device-CRC

Usage

See the usage example in OneWireContainer to enumerate the MemoryBanks.

See the usage examples in MemoryBank, PagedMemoryBank, and OTPMemoryBank for bank specific operations.

DataSheets

http://pdfserv.maxim-ic.com/arpdf/DS2506.pdf

http://pdfserv.maxim-ic.com/arpdf/DS1986.pdf

Version:

0.00, 28 Aug 2000

Author:

DS

See Also:

MemoryBank, PagedMemoryBank, OTPMemoryBank, OneWireContainer09, OneWireContainer0B

Constructor Summary

OneWireContainer0F()
Create an empty container that is not complete until after a call to setupContainer.

OneWireContainer0F(DSPortAdapter sourceAdapter, byte[] newAddress)
Create a container with the provided adapter instance and the address of the iButton or 1-Wire device.

OneWireContainer0F(DSPortAdapter sourceAdapter, long newAddress)
Create a container with the provided adapter instance and the address of the iButton or 1-Wire device.

OneWireContainer0F(DSPortAdapter sourceAdapter, String newAddress)
Create a container with the provided adapter instance and the address of the iButton or 1-Wire device.

Method Summary

String	getAlternateNames() Get the alternate Dallas Semiconductor part numbers or names.
String	getDescription() Get a short description of the function of this iButton or 1-Wire Device type.
int	getMaxSpeed() Get the maximum speed this iButton or 1-Wire device can communicate at.
Enumeration	getMemoryBanks() Get an enumeration of memory bank instances that implement one or more of the following interfaces: MemoryBank, PagedMemoryBank, and OTPMemoryBank.
String	getName() Get the Dallas Semiconductor part number of the iButton or 1-Wire Device as a string.

Methods inherited from class com.dalsemi.onewire.container.OneWireContainer

doSpeed, equals, getAdapter, getAddress, getAddressAsLong, getAddressAsString, hashCode, isAlarming, isPresent, setSpeed, setupContainer, setupContainer, setupContainer, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

OneWireContainer0F

public OneWireContainer0F()

Create an empty container that is not complete until after a call to setupContainer.

This is one of the methods to construct a container. The others are through creating a OneWireContainer with parameters.

See Also:

super.setupContainer()

OneWireContainer0F

public OneWireContainer0F(DSPortAdapter sourceAdapter,
                          byte[] newAddress)

Create a container with the provided adapter instance and the address of the iButton or 1-Wire device.

This is one of the methods to construct a container. The other is through creating a OneWireContainer with NO parameters.

Parameters:

sourceAdapter - adapter instance used to communicate with this iButton

newAddress - Address of this 1-Wire device

See Also:

OneWireContainer0F, utils.Address

OneWireContainer0F

public OneWireContainer0F(DSPortAdapter sourceAdapter,
                          long newAddress)

Create a container with the provided adapter instance and the address of the iButton or 1-Wire device.

This is one of the methods to construct a container. The other is through creating a OneWireContainer with NO parameters.

Parameters:

sourceAdapter - adapter instance used to communicate with this 1-Wire device

newAddress - Address of this 1-Wire device

See Also:

OneWireContainer0F, utils.Address

OneWireContainer0F

public OneWireContainer0F(DSPortAdapter sourceAdapter,
                          String newAddress)

Create a container with the provided adapter instance and the address of the iButton or 1-Wire device.

This is one of the methods to construct a container. The other is through creating a OneWireContainer with NO parameters.

Parameters:

sourceAdapter - adapter instance used to communicate with this 1-Wire device

newAddress - Address of this 1-Wire device

See Also:

OneWireContainer0F, utils.Address

Method Detail

getName

public String getName()

Get the Dallas Semiconductor part number of the iButton or 1-Wire Device as a string. For example 'DS1992'.

Overrides:

getName in class OneWireContainer

Returns:

iButton or 1-Wire device name

getAlternateNames

public String getAlternateNames()

Get the alternate Dallas Semiconductor part numbers or names. A 'family' of 1-Wire Network devices may have more than one part number depending on packaging. There can also be nicknames such as 'Crypto iButton'.

Overrides:

getAlternateNames in class OneWireContainer

Returns:

1-Wire device alternate names

getDescription

public String getDescription()

Get a short description of the function of this iButton or 1-Wire Device type.

Overrides:

getDescription in class OneWireContainer

Returns:

device description

getMaxSpeed

public int getMaxSpeed()

Get the maximum speed this iButton or 1-Wire device can communicate at. Override this method if derived iButton type can go faster then SPEED_REGULAR(0).

Overrides:

getMaxSpeed in class OneWireContainer

Returns:

maximum speed

See Also:

super.setSpeed, DSPortAdapter.SPEED_REGULAR, DSPortAdapter.SPEED_OVERDRIVE, DSPortAdapter.SPEED_FLEX

getMemoryBanks

public Enumeration getMemoryBanks()

Get an enumeration of memory bank instances that implement one or more of the following interfaces: MemoryBank, PagedMemoryBank, and OTPMemoryBank.

Overrides:

getMemoryBanks in class OneWireContainer

Returns:

Enumeration of memory banks