User's Manual

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Using the TRF7970A EVM With PC GUI
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2.5.3 ATTRIB
This command is used to select an ISO14443B PICC and bring it into Layer 4. REQ_B should be sent
before this command so that the TRF7970A system has the information that is required in this command
(see Figure 25).
Figure 25. ATTRIB Command Example
2.5.4 Halt
This command is used to halt or stop a card from responding while still in the activation field.
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TRF7970A Evaluation Module (EVM) SLOU321 August 2011
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