Can You Please Explain the Data Block Command?

By RFID Journal

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Ask The ExpertsCan You Please Explain the Data Block Command?
RFID Journal Staff asked 8 years ago

What does it do?

—Name withheld

———

I’m sorry, but I’m unsure what you are referring to. It sounds like you are asking about something in the EPC Gen 2 air-interface protocol, but there is no command called “data block” or “block,” though there are BlockWrite, BlockErase and BlockPermalock. The BlockWrite command writes one or more 16-bit words at a time, the BlockErase command erases one or more 16-bit words at a time, and BlockPermalock renders a portion of the user memory on the chip permanently locked. Perhaps you could resubmit your question with a little more detail.

—Mark Roberti, Founder and Editor, RFID Journal

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