RF430CL330HCPWR datasheet(31/47 Pages) TI1

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RF430CL330H

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SLAS916C – NOVEMBER 2012 – REVISED NOVEMBER 2014

5.8.1

ISO14443-3 Commands

These commands use the character, frame format, and timing that are described in ISO14443-3, clause

7.1. The following commands are used to manage communication:

REQB and WUPB

The REQB and WUPB Commands sent by the PCD are used to probe the field for PICCs of Type B.

In addition, WUPB is used to wake up PICCs that are in the HALT state. The number of slots N is

included in the command as a parameter to optimize the anticollision algorithm for a given application.

Slot-MARKER

After a REQB or WUPB Command, the PCD may send up to (N-1) Slot-MARKER Commands to define

the start of each timeslot. Slot-MARKER Commands can be sent after the end of an ATQB message

received by the PCD to mark the start of the next slot or earlier if no ATQB is received (no need to wait

until the end of a slot, if this slot is known to be empty).

ATTRIB

The ATTRIB Command sent by the PCD includes information required to select a single PICC. A PICC

receiving an ATTRIB Command with its identifier becomes selected and assigned to a dedicated

channel. After being selected, this PICC only responds to commands defined in ISO/IEC 14443-4 that

include its unique CID.

HLTB

The HLTB Command is used to set a PICC in HALT state and stop responding to a REQB.

After answering to this command, the PICC ignores any commands except the WUPB.

5.8.2

NFC Tag Type 4 Commands

Select

Selection of applications or files

ReadBinary

Read data from file

UpdateBinary

Update (erase and write) data to file

Detailed Description

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