RF430CL331HIPWR datasheet(12/60 Pages) TI1

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I C

Interface

Processing

Unit

(MSP430-

based)

NFC Type 4B

Tag Platform

ISO/IEC 14443

RF Interface

Buffer

Memory

(SRAM)

SCL

SDA

I2C_READY

INTO

ANT1

VCC

VSS

VCORE

ANT2

I2C_SIGNAL

RST

RF430CL331H

SLASE18A – SEPTEMBER 2015 – REVISED NOVEMBER 2015

www.ti.com

Detailed Description

5.1

Overview

Figure 5-1 shows the functional block diagram.

5.2

Functional Block Diagram

Figure 5-1. Functional Block Diagram

5.3

Terms and Acronyms

Table 5-1 describes the terms and acronyms used in this document.

Table 5-1. Term Definitions

NAME

DESCRIPTION

PCD

Proximity coupling device, such as NFC enabled handset, NFC/RFID reader/writer devices

PICC

Proximity integrated circuit card, dynamic tag, RF430CL331H IC

NFC Type 4 command

See the NFC Forum Type 4 Tag Operation Specification (http://nfc-forum.org/) for details

PICC Buffer

This is a memory range (0 through 2999) that is accessible through the I2C bus, where buffer data is stored.

This is a MCU or processor connected to the PICC through the I2C bus. It responds to all the of Type 4 data

Host Controller

requests that come from the PICC.

Type 4 command acknowledgments, referred also as SW1 and SW2 (status word). Refer to NFC/RFID and

ISO14443-B specifications for details.

Frame wait time extension. When the RF430CL331H cannot respond to a command that PCD sends, it must

SWTX or S(WTX)

send a S(WTX) request indicating that it needs more time. The PCD then responds and the RF430CL331H has

the negotiated time that it requested.

5.4

Serial Communication Interface

The serial interface of this device is I2C. The serial interface allows a connected MCU to configure the

device and write to and read from the available registers and the RAM buffer on the RF430CL331H.

Detailed Description

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