Package com.dalsemi.onewire.container

Class OneWireContainer23

java.lang.Object
com.dalsemi.onewire.container.OneWireContainer
com.dalsemi.onewire.container.OneWireContainer23
public class OneWireContainer23 extends OneWireContainer

1-Wire container for 512 byte EEPROM memory iButton, DS1973 and 1-Wire Chip, DS2433. This container encapsulates the functionality of the 1-Wire family type 23 (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 small non-volatile storage.

Features

  • 4096 bits (512 bytes) Electrically Erasable Programmable Read Only Memory (EEPROM)
  • 256-bit (32-byte) scratchpad ensures integrity of data transfer
  • Memory partitioned into 256-bit (32-byte) pages for packetizing data
  • Overdrive mode boosts communication to 142 kbits per second
  • Reduces control, address, data and power to a single data pin
  • Reads and writes over a wide voltage range of 2.8V to 6.0V from -40@htmlonly invalid input: '&#176'C @endhtmlonly to +85@htmlonly invalid input: '&#176'C @endhtmlonly environments

Alternate Names

  • DS2433

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:
  • Scratchpad
    • Implements MemoryBank, PagedMemoryBank
    • Size 32 starting at physical address 0
    • Features Read/Write not-general-purpose volatile
    • Pages 1 pages of length 32 bytes
    • Extra information for each page Target address, offset, length 3
  • Main Memory
    • Implements MemoryBank, PagedMemoryBank
    • Size 512 starting at physical address 0
    • Features Read/Write general-purpose non-volatile
    • Pages 16 pages of length 32 bytes giving 29 bytes Packet data payload

Usage

See the usage example in OneWireContainer to enumerate the MemoryBanks.
See the usage examples in MemoryBank and PagedMemoryBank for bank specific operations.

DataSheets

http://pdfserv.maxim-ic.com/arpdf/DS1973.pdf
http://pdfserv.maxim-ic.com/arpdf/DS2433.pdf
See Also:

  • Constructor Details

    • OneWireContainer23

      public OneWireContainer23()
      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:

    • OneWireContainer23

      public OneWireContainer23(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:

    • OneWireContainer23

      public OneWireContainer23(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:

    • OneWireContainer23

      public OneWireContainer23(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:

  • Method Details