PN544 데이터 시트보기 (PDF) - NXP Semiconductors.

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PN544

Near field communication (NFC) controller

NXP Semiconductors. 

www.DataSheet.co.kr

NXP Semiconductors

PN544

Near field communication (NFC) controller

8.1.4 ISO/IEC 15693 VCD mode

The ISO/IEC 15693 VCD reader/writer mode is the general reader to card communication

scheme according to the ISO/IEC 15693 specification. The ISO/IEC 15693-3 specification

defines four sets of commands: mandatory, optional, custom, proprietary commands. The

PN544 supports all mandatory and optional commands.

PN544

PCD to PICC 10..30% or 100% ASK

Pulse position coded

1,65..26,69 kbit

ISO/IEC 15693 ICODE

VCD mode

PICC to PCD, Subcarrier Loadmodulation

Manchester coded

6,62..26,69 kbit

Fig 7. ISO/IEC 14443B reader/writer communication diagram

Card

(VICC/TAG)

ISO/IEC 15693

ICODE

Table 7. Communication overview for ISO/IEC 14443B reader/writer

Communication

direction

PN544 → TAG Transfer speed 1.65 kbit/s

26.48 kbit/s

Modulation on

reader side

bit coding

10-30% or 10% ASK

10-30% or 10% ASK

Pulse Position Modulation1 Pulse Position Modulation1

out of 256 mode

out of 4 mode

Bitlength

(8192/13.56) μs

(512/13.56) μs

TAG → PN544 Transfer speed 1.65 kbit/s 6.67 kbit/s 26.48 kbit/s 26.69 kbit/s

Subcarrier

Single Subcarrier

Single Subcarrier

Loadmodulation load modulation amplitude shall be at least 10 mV

on card side

bit coding

Manchester coding

134812

Objective short data sheet

Rev. 1.2 — 4 September 2007

© NXP B.V. 2007. All rights reserved.

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