RF430CL330HCPWR datasheet(29/47 Pages) TI1

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RF430CL330H

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SLAS916C – NOVEMBER 2012 – REVISED NOVEMBER 2014

5.8

NFC Type-4 Tag Functionality

This device is an ISO14443B-compliant transponder that operates according to the NFC Forum Tag Type-

4 specification and supports the NFC Forum NDEF (NFC Data Exchange Format) requirements. Through

the RF interface, the user can read and update the contents in the NDEF memory. The contents in the

NDEF memory (stored in SRAM) are stored as long as power is maintained.

NOTE

This device does not have nonvolatile memory; therefore, the information stored in the NDEF

memory is lost when power is removed.

This device does not support the peer-to-peer or reader/writer modes in the ISO18092/NFC Forum

specification. All RF communication between an NFC forum device and this device is in the passive tag

mode. The device responds by load modulation and is not considered an intentional radiator.

This device is intended to be used in applications where the primary reader/writer is for example an NFC-

enabled cell phone. The device enables data transfer to and from an NFC phone by RF to the host

application that is enabled with the dual interface device. In this case, the host application can be

considered the destination device, and the cell phone or other type of mobile device is treated as the end-

point device.

This device supports ISO14443-3, ISO14443-4, and NFC Forum commands as described in the following

sections. A high-level overview of the ISO14443B and NFC commands and responses are shown in

Figure 5-10.

106-kbps, 212-kbps, 424-kbps, and 848-kbps data rates are supported.

The device always answers ATTRIB commands from the PCD that request higher data rates. Note, this is

not NFC-compliant, because for NFC-B the maximum data rate specified is 106 kbps. It is assumed that

an NFC-compliant PCD would not request higher data rates thus no interoperability issues are expected.

Even though all data rates up to 848 kbps are supported, the device by default reports only the capability

to support 106 kbps to the PCD. To change this behavior, use the sequence described in Section 5.8.3.

The ISO14443B command and response structure is detailed in ISO14443-3, ISO14443-4, and NFC

Forum-TS-Digital Protocol. The applicable ISO7816-4 commands are detailed in NFC Forum-TS-Type-4-

Tag_2.0.

Detailed Description

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