XRAG2

XRAG2 command descriptions

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8.3.5

BlockWrite

The XRAG2 supports the BlockWrite command as described in the EPCglobal Class 1

generation 2 RFID UHF specification, revision 1.0.9.

The BlockWrite command allows the reader to program blocks of multiple 16-bit words (up

to 4 words) into the Reserved, EPC, and User memory banks in a single operation. Prior to

a BlockWrite operation, the block must be erased using a BlockErase command. If not, the

current data is ORed with new data sent during the BlockWrite command.

After completion of the BlockWrite operation, the XRAG2 backscatters a single bit header

BlockWrite command.

8.3.6

BlockErase

The XRAG2 supports the Block Erase command as described in the EPCglobal Class 1

generation 2 RFID UHF specification, revision 1.0.9.

The BlockErase command allows the reader to erase blocks of multiple 16-bit words (up to

the complete memory bank) into the Reserved, EPC, or User memory banks in a single

operation.

After completion of the BlockErase operation, XRAG2 backscatters a single bit header (0b),

BlockErase command.

8.3.7

Kill

The XRAG2 supports the KILL command as described in the EPCglobal Class 1 generation

2 RFID UHF specification, revision 1.0.9.

The Kill command allows readers to permanently disable a tag.

8.3.8

Lock

The XRAG2 supports the Lock command as described in the EPCglobal Class 1 generation

2 RFID UHF specification, revision 1.0.9.

The Lock command allows the reader to lock individual passwords and memory banks

thereby preventing or allowing subsequent writes and/or reads of these passwords and

memory banks. The status of the passwords and memory banks can be permanently locked

(permalocked).

Table 11.

1.

Characterized only.

Parameter

Description

Min

Max

Unit

Write cycle time

20

ms

BlockWrite cycle time

20

ms

BlockErase cycle time

20

ms