Akijora At least data can be copied, so we will see what happens…: It is a integreted chip. You are commenting using your WordPress. This was very useful since all I got is a Bus Pirate v3. GPL covered for the http: Pin 3 remains unconnected. Do I just rewrite the memory from the one I have to the empty one?

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Page The logical behavior of both ver- sions is identical. Operating Temperature Range These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability Note Applies to a single device attached to a 1-Wire line.

Note The earliest recognition of a negative edge is possible at t Note Defines maximum possible bit rate. Each DSA1 has its own bit ROM registration number that is factory lasered into the chip to provide a guaranteed unique identity for absolute traceability The first 8 bits are a 1-Wire family code.

The next 48 bits are a unique serial number. The last 8 bits are a CRC cyclic redundancy check of the first 56 bits. Data memory and registers are located in a linear address space, as shown in Figure 5. The data memory and the registers have unrestricted read access. The first 16 rows are divided equally into four memory pages 32 bytes each. These four pages are the primary data memory These registers are common to many other 1-Wire devices but operate slightly different- ly with the DSA1.

Registers TA1 and TA2 must be loaded with the target address to which the data is writ- ten or from which data is read. Register E read- only transfer-status register used to verify data integrity with write commands An example on how to use these func- tions to write to and read from the device is included at the end of this document.

Automotive Applications The 1-Wire bus is a system that has a single bus mas- ter and one or more slaves. In all instances the DS slave device. The bus master is typical microcontroller. The discussion of this bus system is broken down into three topics: hardware configura- tion, transaction sequence, and 1-Wire signaling signal types and timing





DS2431-A1 Maxim, DS2431-A1 Datasheet


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