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Release Version 1.0.34

236 Appendix D: Deprecated and Modified Commands

GEN2

For Gen2, if Option=00, the write tag data is performed without the select option with the

following format:

In the previous example, the reader can singulate a tag with Q=0 and would try to write N

bytes of data into the first tag it can see, starting at the address 0x2 of EPC MemBank

(the first word of the tag’s EPC).

If Option=01, the write tag data is performed with the select option that enables you to

choose a tag from a population of tags based on its Tag ID with the following format:

In this example, if N=4, the reader issues a Select command to singulate the desired tag

and then would write 4 bytes of data into the tag memory of a 96-bit tag with the specified

Tag ID, starting at the address 0x2 of the Reserved MemBank (the first word of the Kill

Password of the tag).

Note

In both examples, N is a variable value that is an even, nonzero number less

than 32.

The 32-bit Address field is the offset from the MemBank origin, in 16-bit words, where the

contents of the Data field is written. It corresponds to the WordPtr argument in the Gen2

command specification.

The 8-bit MemBank field specifies which of the tag’s memory banks is to be addressed. It

corresponds to the Gen2 argument of the same name. Its values are as follows.

FF N+8 24 03 E8 00 00000002 01 N bytes ?? ??

SOH Length OpCode Timeout (ms) Option Address MemBank Data to Write CRC

FF M+N+13 24 03 E8 01 00 00 00 02 00 00 00 00 00

SOH Length OpCod

Timeout (ms) Option Address MemBank Access Password

60h M bytes N bytes ?? ??

Tag ID Length Tag ID (M bytes) Data to Write CRC