Req_B Command Example - Texas Instruments TRF7970A User Manual

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2.5 ISO14443B Tab
The ISO14443B tab is used to perform Layer 3 and into Layer 4 operations on ISO14443B PICCs
according to the ISO/IEC144443-4 standard. After selecting this tab, select the Set Protocol button.
2.5.1 Request (REQ_B)
This command is used to probe the field for ISO/IEC14443B PICCs, and it retrieves the PUPI and other
relevant information needed by the ATTRIB command (see
2.5.2 Wake-Up (WupB)
This command is used to bring ISO14443B PICCs out of the HALT state.
SLOU321 – August 2011
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Figure 24. REQ_B Command Example
Copyright © 2011, Texas Instruments Incorporated
Using the TRF7970A EVM With PC GUI
Figure 24).
TRF7970A Evaluation Module (EVM)
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