PN532 Datasheet, PDF (12/27 Pages) NXP Semiconductors – Near Field Communication (NFC) controller

NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
7.1.3.3 ISO/IEC 14443B Reader/Writer
The CIU supports layers 2 and 3 of the ISO/IEC 14443 B Reader/Writer communication
scheme, except anticollision which must be implemented in firmware as well as upper
layers.
The following diagram describes the communication at the physical level. Table 7
describes the physical parameters.
Battery
HOST
PN532
Reader/Writer
1. PCD to PICC, 8 - 14% ASK,
NRZ-L Coded,
Transfer speed 106 to 424 kbit/s
ISO/IEC 14443B
Card / PICC
2. PICC to PCD, Subcarrier Load modulation,
BPSK,
Transfer speed 106 to 424kbit/s
Fig 6. ISO/IEC 14443B Reader/Writer communication diagram
With appropriate firmware, the PN532 can handle the ISO/IEC 14443B protocol.
Table 7. Communication overview for ISO/IEC 14443B Reader/Writer
Communication scheme ISO/IEC 14443B
Type B higher baud rate
Baud rate
Bit length
106 kbit/s
---------¹---²---⁸----------  9.44s
13.56MHz
212 kbit/s
-----------⁶---⁴-----------  4.72s
13.56MHz
424 kbit/s
-----------³---²-----------  2.36s
13.56MHz
PN532 to
PICC/Card
Modulation 8 -14% ASK
Bit coding NRZ-L
8 -14% ASK
NRZ-L
8 -14% ASK
NRZ-L
PICC/Card to
PN532
Modulation
Subcarrier
frequency
Bit coding
Subcarrier load
modulation
13.56 MHz_⁄16
BPSK
Subcarrier load
modulation
13.56 MHz_⁄16
BPSK
Subcarrier load
modulation
13.56 MHz_⁄16
BPSK
PN512_C1_SDS
Product short data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.2 — 20 September 2012
120132
© NXP B.V. 2012. All rights reserved.
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