Datasheet

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PN532_C1 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.6 — 28 November 2017
115436 105 of 222
NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
8.6.3.3 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 149
describes the physical parameters.
With appropriate firmware, the PN532 can handle the ISO/IEC 14443B protocol.
Fig 30. ISO/IEC 14443B Reader/Writer communication diagram
Table 149. Communication overview for ISO/IEC 14443B Reader/Writer
Communication scheme ISO/IEC 14443B Type B higher baud rate
Baud rate 106 kbit/s 212 kbit/s 424 kbit/s
Bit length
PN532 to
PICC/Card
Modulation 8 -14% ASK 8 -14% ASK 8 -14% ASK
Bit coding NRZ-L NRZ-L NRZ-L
PICC/Card to
PN532
Modulation Subcarrier load
modulation
Subcarrier load
modulation
Subcarrier load
modulation
Subcarrier
frequency
13.56 MHz
16
13.56 MHz
16
13.56 MHz
16
Bit coding BPSK BPSK BPSK
1. PCD to PICC, 8 - 14% ASK,
NRZ-L Coded,
Transfer speed 106 to 424 kbit/s
2. PICC to PCD, Subcarrier Load modulation,
BPSK,
Transfer speed 106 to 424kbit/s
Reader/Writer
PN532
HOST
Battery
ISO/IEC 14443B
Card / PICC
128
13,56MHz
--------------------------
9,44s
64
13,56MHz
--------------------------
4,72s
32
13,56MHz
--------------------------
2,36s